2005 |
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| 67. | Soon-Ho Hwang; Won-Il Kwak; Jung-Ick Moon; Seong-Ook Park An internal dual‐band printed antenna for CDMA/PCS handsets Journal Article Microwave and Optical Technology Letters, 45 , pp. 537 - 540, 2005. Abstract | Links | BibTeX | 태그: International @article{Hwang2005, title = {An internal dual‐band printed antenna for CDMA/PCS handsets}, author = {Soon-Ho Hwang and Won-Il Kwak and Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/Hwang.pdf}, doi = {10.1002/mop.20872}, year = {2005}, date = {2005-04-20}, journal = {Microwave and Optical Technology Letters}, volume = {45}, pages = {537 - 540}, abstract = {This paper presents an internal dual‐band antenna which has a planar‐type radiator and operates at the CDMA (824–894‐MHz) and PCS (1750–1870‐MHz) bands. The antenna characteristics at each band are optimized by tuning the size and length of the strip line's radiating segments. This antenna is composed of FR‐4 substrate (thickness of 1 mm), a planar‐type radiator, and 50Ω coaxial feeding cable. The maximum measured radiation gains are 0.94 and 1.89 dBi in the CDMA and PCS bands, respectively. The design of the proposed antenna and the experimental results are discussed.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } This paper presents an internal dual‐band antenna which has a planar‐type radiator and operates at the CDMA (824–894‐MHz) and PCS (1750–1870‐MHz) bands. The antenna characteristics at each band are optimized by tuning the size and length of the strip line's radiating segments. This antenna is composed of FR‐4 substrate (thickness of 1 mm), a planar‐type radiator, and 50Ω coaxial feeding cable. The maximum measured radiation gains are 0.94 and 1.89 dBi in the CDMA and PCS bands, respectively. The design of the proposed antenna and the experimental results are discussed. |
| 66. | Dong-Hyuk Choi; Seong-Ook Park Active integrated antenna using a T‐shaped microstrip coupled‐patch antenna Journal Article Microwave and Optical Technology Letters, 44 , pp. 434 - 436, 2005. Abstract | Links | BibTeX | 태그: International @article{Choi2005b, title = {Active integrated antenna using a T‐shaped microstrip coupled‐patch antenna}, author = {Dong-Hyuk Choi and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/232ers.pdf}, doi = {10.1002/mop.20658}, year = {2005}, date = {2005-01-20}, journal = {Microwave and Optical Technology Letters}, volume = {44}, pages = {434 - 436}, abstract = {In this paper, an active integrated antenna using a T‐shaped microstrip coupled patch antenna, which acts as DC isolation in the RF path, is proposed. The designed feedback‐antenna oscillator has stable oscillation and a clear spectrum at the frequency of 5.813 GHz, which is only a 0.2% deviation from the design frequency. The measured EIRP is 19.2 mW, and the cross‐polarization levels are at least −13 dB lower than the co‐polarization ones for all directions.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } In this paper, an active integrated antenna using a T‐shaped microstrip coupled patch antenna, which acts as DC isolation in the RF path, is proposed. The designed feedback‐antenna oscillator has stable oscillation and a clear spectrum at the frequency of 5.813 GHz, which is only a 0.2% deviation from the design frequency. The measured EIRP is 19.2 mW, and the cross‐polarization levels are at least −13 dB lower than the co‐polarization ones for all directions. |
2004 |
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| 65. | Soon-Ho Hwang; Jung-Ick Moon; Won-Il Kwak; Seong-Ook Park Printed compact dual band antenna for 2.4 and 5 GHz ISM band applications Journal Article Electronics Letters, 40 , pp. 1568 - 1569, 2004. Abstract | Links | BibTeX | 태그: International @article{Hwang2004, title = {Printed compact dual band antenna for 2.4 and 5 GHz ISM band applications}, author = {Soon-Ho Hwang and Jung-Ick Moon and Won-Il Kwak and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01368434.pdf}, doi = {10.1049/el:20046579}, year = {2004}, date = {2004-12-20}, journal = {Electronics Letters}, volume = {40}, pages = {1568 - 1569}, abstract = {A printed compact dipole antenna for dual ISM band (2.44 and 5 GHz) is presented. The proposed antenna fed by using a 50 /spl Omega/ coaxial line occupies a volume of 15/spl times/40/spl times/1 mm/sup 3/ (FR-4, permittivity 4.6). The impedance bandwidth for 10 dB return loss is about 400 MHz (from 2170 to 2570 MHz) at 2.4 GHz band and over 2300 MHz (from 4690 to beyond 7000 MHz) at 5 GHz band. The measured radiation gains range from 1.20 to 1.41 dBi at 2.4 GHz band and from 2.25 to 3.44 dBi at 5 GHz band, respectively.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } A printed compact dipole antenna for dual ISM band (2.44 and 5 GHz) is presented. The proposed antenna fed by using a 50 /spl Omega/ coaxial line occupies a volume of 15/spl times/40/spl times/1 mm/sup 3/ (FR-4, permittivity 4.6). The impedance bandwidth for 10 dB return loss is about 400 MHz (from 2170 to 2570 MHz) at 2.4 GHz band and over 2300 MHz (from 4690 to beyond 7000 MHz) at 5 GHz band. The measured radiation gains range from 1.20 to 1.41 dBi at 2.4 GHz band and from 2.25 to 3.44 dBi at 5 GHz band, respectively. |
| 64. | Kun-Mo Chu; Jung-Hwan Choi; Jung-Sub Lee; Han-Seo Cho; Seong-Ook Park; Hyo-Hoon Park; Duk-Young Jeon Optoelectronic and microwave characteristics of silver coated indium bumps for low temperature flip-chip applications Journal Article Electronics Letters, 40 , 2004. Abstract | Links | BibTeX | 태그: International @article{Chu2004, title = {Optoelectronic and microwave characteristics of silver coated indium bumps for low temperature flip-chip applications}, author = {Kun-Mo Chu and Jung-Hwan Choi and Jung-Sub Lee and Han-Seo Cho and Seong-Ook Park and Hyo-Hoon Park and Duk-Young Jeon}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01358968.pdf}, doi = {10.1049/el:20046619}, year = {2004}, date = {2004-11-22}, journal = {Electronics Letters}, volume = {40}, abstract = {The effect of silver coating on pure indium bumps for low temperature and high speed flip-chip applications is presented with respect to optoelectronic and microwave characteristics. The current-voltage and light power-current characteristics of flip-chip bonded vertical-cavity surface-emitting laser (VCSEL) arrays are improved by coating a thin silver layer of 0.2 /spl mu/m. The flip-chip assembled coplanar waveguide packages using silver coated bumps show the insertion loss is about 3.3 dB/cm at 20 GHz and the return loss is under 13 dB.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } The effect of silver coating on pure indium bumps for low temperature and high speed flip-chip applications is presented with respect to optoelectronic and microwave characteristics. The current-voltage and light power-current characteristics of flip-chip bonded vertical-cavity surface-emitting laser (VCSEL) arrays are improved by coating a thin silver layer of 0.2 /spl mu/m. The flip-chip assembled coplanar waveguide packages using silver coated bumps show the insertion loss is about 3.3 dB/cm at 20 GHz and the return loss is under 13 dB. |
| 63. | Jung-Hwan Choi; Jung-Ick Moon; Seong-Ook Park Measurement of the modulated scattering microwave fields using dual-phase lock-in amplifier Journal Article IEEE Antennas and Wireless Propagation Letters, 3 , pp. 340 - 343, 2004. Abstract | Links | BibTeX | 태그: International @article{Choi2004, title = {Measurement of the modulated scattering microwave fields using dual-phase lock-in amplifier}, author = {Jung-Hwan Choi and Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01373969.pdf}, doi = {10.1109/LAWP.2004.839629}, year = {2004}, date = {2004-09-07}, journal = {IEEE Antennas and Wireless Propagation Letters}, volume = {3}, pages = {340 - 343}, abstract = {A new automatic measurement architecture is proposed for the simultaneous measurement of the amplitude and phase of microwave fields with optically modulated scatterer. The modulated scattering techniques have been popularly used for rapid electric field measurement without scarifying the acceptable level of accuracy. However, the conventional system for measurement of the modulated scattering fields has an unstable measurement ability and a measurement limitation in terms of a wide band frequency range due to the imperfection of in-phase and quadrature phase operation of the coupler. In this letter, we propose an improved measurement system using two signal generators. The measurement results of the proposed system are compared with those of the conventional system to demonstrate the superior performance with the phase prediction result in the near and far-field range and to validate the performance of the proposed system.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } A new automatic measurement architecture is proposed for the simultaneous measurement of the amplitude and phase of microwave fields with optically modulated scatterer. The modulated scattering techniques have been popularly used for rapid electric field measurement without scarifying the acceptable level of accuracy. However, the conventional system for measurement of the modulated scattering fields has an unstable measurement ability and a measurement limitation in terms of a wide band frequency range due to the imperfection of in-phase and quadrature phase operation of the coupler. In this letter, we propose an improved measurement system using two signal generators. The measurement results of the proposed system are compared with those of the conventional system to demonstrate the superior performance with the phase prediction result in the near and far-field range and to validate the performance of the proposed system. |
| 62. | Jung-Ick Moon; Dong-Uk Sim; Seong-Ook Park Compact PIFA for 2.4/5 GHz dual ISM-band applications Journal Article Electronics Letters, 40 , 2004. Abstract | Links | BibTeX | 태그: International @article{Moon2004, title = {Compact PIFA for 2.4/5 GHz dual ISM-band applications}, author = {Jung-Ick Moon and Dong-Uk Sim and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01315479.pdf}, doi = {10.1049/el:20045286}, year = {2004}, date = {2004-07-19}, journal = {Electronics Letters}, volume = {40}, abstract = {A compact and novel modified planar inverted-F antenna (PIFA) for dual ISM-band application is proposed. The proposed antenna, including a small ground plane, occupies a volume of 20/spl times/23.7/spl times/0.8 mm/sup 3/ (FR-4). The impedance bandwidth with 10 dB return loss is about 150 MHz (2380-2530 MHz) for 2.4 GHz band and 1450 MHz (5130-6580 MHz) for 5 GHz band. The measured radiation patterns are approximately omnidirectional and yield a gain of 1.0 dBi at 2440 MHz and 3.98 dBi at 5600 MHz, respectively.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } A compact and novel modified planar inverted-F antenna (PIFA) for dual ISM-band application is proposed. The proposed antenna, including a small ground plane, occupies a volume of 20/spl times/23.7/spl times/0.8 mm/sup 3/ (FR-4). The impedance bandwidth with 10 dB return loss is about 150 MHz (2380-2530 MHz) for 2.4 GHz band and 1450 MHz (5130-6580 MHz) for 5 GHz band. The measured radiation patterns are approximately omnidirectional and yield a gain of 1.0 dBi at 2440 MHz and 3.98 dBi at 5600 MHz, respectively. |
| 61. | Dong-Uk Sim; Seong-Ook Park IEEE Antennas and Propagation Society Symposium, U.S., 2004, ISBN: 0-7803-8302-8. Abstract | Links | BibTeX | 태그: International @conference{Sim2004b, title = {The effects of the handset case, battery, and human head on the performance of a triple-band internal antenna}, author = {Dong-Uk Sim and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01330586.pdf}, doi = {10.1109/APS.2004.1330586}, isbn = {0-7803-8302-8}, year = {2004}, date = {2004-06-20}, booktitle = {IEEE Antennas and Propagation Society Symposium}, address = {U.S.}, abstract = {An internal triple-band antenna fed by a microstrip line is proposed for operation in the PCS (1750-1870 MHz), IMT-2000 (1920-2170 MHz), and Bluetooth (2402-2483.5 MHz) bands. It has the advantages of sufficient impedance bandwidth, easy placement on the substrate, and compact size over most internal antennas. At first, only the antenna itself is designed to satisfy the desired operation, but, in the real situation, its performance is affected by the handset case, battery, or human head. In most cases, it is not uncommon that the antenna is modified to obtain the desired characteristics. Accordingly, the variation of the antenna performance for that case should be investigated. We present advanced physical models for the effects of case, battery and head on the proposed antenna for accurate simulations of real situations. Measured data is compared with computational results to validate the proposed design methods.}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } An internal triple-band antenna fed by a microstrip line is proposed for operation in the PCS (1750-1870 MHz), IMT-2000 (1920-2170 MHz), and Bluetooth (2402-2483.5 MHz) bands. It has the advantages of sufficient impedance bandwidth, easy placement on the substrate, and compact size over most internal antennas. At first, only the antenna itself is designed to satisfy the desired operation, but, in the real situation, its performance is affected by the handset case, battery, or human head. In most cases, it is not uncommon that the antenna is modified to obtain the desired characteristics. Accordingly, the variation of the antenna performance for that case should be investigated. We present advanced physical models for the effects of case, battery and head on the proposed antenna for accurate simulations of real situations. Measured data is compared with computational results to validate the proposed design methods. |
| 60. | Yong-Sun Shin; Seong-Ook Park Broadband internal antenna of planar monopole type for mobile handsets Conference IEEE Antennas and Propagation Society Symposium, U.S., 2004, ISBN: 0-7803-8302-8. Abstract | Links | BibTeX | 태그: International @conference{Shin2004b, title = {Broadband internal antenna of planar monopole type for mobile handsets}, author = {Yong-Sun Shin and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01330295.pdf}, doi = {10.1109/APS.2004.1330295}, isbn = {0-7803-8302-8}, year = {2004}, date = {2004-06-20}, booktitle = {IEEE Antennas and Propagation Society Symposium}, address = {U.S.}, abstract = {The paper presents a novel internal antenna of a planar monopole type. The proposed antenna, fed by a 50 /spl Omega/ microstrip line, operates at DCS (1710-1880 MHz), PCS (1750-1870 MHz), and IMT-2000 (1885-2200 MHz) bands. The size of the antenna, not including the support, is 20/spl times/17/spl times/0.2 mm/sup 3/. The bandwidth of the proposed antenna (S11<10 dB) is 740 MHz, from 1620 MHz to 2360 MHz. Numerical simulation and experiment results are performed taking into consideration the antenna itself, the phone case, and the battery.}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } The paper presents a novel internal antenna of a planar monopole type. The proposed antenna, fed by a 50 /spl Omega/ microstrip line, operates at DCS (1710-1880 MHz), PCS (1750-1870 MHz), and IMT-2000 (1885-2200 MHz) bands. The size of the antenna, not including the support, is 20/spl times/17/spl times/0.2 mm/sup 3/. The bandwidth of the proposed antenna (S11<10 dB) is 740 MHz, from 1620 MHz to 2360 MHz. Numerical simulation and experiment results are performed taking into consideration the antenna itself, the phone case, and the battery. |
| 59. | Kai Li; Seong-Ook Park Electromagnetic field over the spherical Earth coated with N-layered dielectric Journal Article Radio Science, 39 , pp. 1 - 10, 2004. Abstract | Links | BibTeX | 태그: International @article{Li2004, title = {Electromagnetic field over the spherical Earth coated with N-layered dielectric}, author = {Kai Li and Seong-Ook Park }, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/Radio_Science.pdf}, doi = {10.1029/2002RS002771}, year = {2004}, date = {2004-04-01}, journal = {Radio Science}, volume = {39}, pages = {1 - 10}, abstract = {The electromagnetic field in the air generated by a dipole source over an electrically spherical Earth coated with n-layered dielectric is determined for continuous-wave excitation. The region of interest consists of the spherical dielectric Earth, coated with the dielectric layer composing a succession of n spherically bounded layer under the air. In this paper, the surface impedance at any point in the n-layered dielectric for the electromagnetic field of electric type is presented, and the formulas are derived for the electromagnetic field in the air of a vertical electric dipole. Similarly, the surface admittance for the electromagnetic field of magnetic type is presented, and the formulas are derived for the electromagnetic field of a vertical magnetic dipole. Based on the above results, using reciprocity theorem, the formulas are derived readily for the six components of the electromagnetic field generated by a horizontal electric dipole.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } The electromagnetic field in the air generated by a dipole source over an electrically spherical Earth coated with n-layered dielectric is determined for continuous-wave excitation. The region of interest consists of the spherical dielectric Earth, coated with the dielectric layer composing a succession of n spherically bounded layer under the air. In this paper, the surface impedance at any point in the n-layered dielectric for the electromagnetic field of electric type is presented, and the formulas are derived for the electromagnetic field in the air of a vertical electric dipole. Similarly, the surface admittance for the electromagnetic field of magnetic type is presented, and the formulas are derived for the electromagnetic field of a vertical magnetic dipole. Based on the above results, using reciprocity theorem, the formulas are derived readily for the six components of the electromagnetic field generated by a horizontal electric dipole. |
| 58. | Yong-Sun Shin; Byoung-Nam Kim; Won-Il Kwak; Seong-Ook Park GSM/DCS/IMT-2000 triple-band built-in antenna for wireless terminals Journal Article IEEE Antennas and Wireless Propagation Letters, 3 , pp. 104 - 107, 2004. Abstract | Links | BibTeX | 태그: International @article{Shin2004, title = {GSM/DCS/IMT-2000 triple-band built-in antenna for wireless terminals}, author = {Yong-Sun Shin and Byoung-Nam Kim and Won-Il Kwak and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01302883.pdf}, doi = {10.1109/LAWP.2004.830021}, year = {2004}, date = {2004-03-23}, journal = {IEEE Antennas and Wireless Propagation Letters}, volume = {3}, pages = {104 - 107}, abstract = {The development of electrically small antennas plays an important role in the rapidly growing mobile communication market. This work presents a novel design technique for a triple-band small internal antenna which covers the GSM/DCS/IMT-2000 bands. The proposed antenna consists of double shorting posts, feed post, and dual-crossed C-slot patch radiators. A high-frequency structure simulator simulation is employed for optimizing the design parameters, and the simulation results agree with the measured data. The IE3D simulation is also used to obtain the current distribution at the resonant frequencies. The maximum gains at the frequencies 950 and 1860 MHz are measured to be about 1.58 and 1.3 dBi, respectively. These positive antenna gains and triple-bands of the proposed antenna are very attractive features for GSM/DCS/IMT-2000 bands handset applications.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } The development of electrically small antennas plays an important role in the rapidly growing mobile communication market. This work presents a novel design technique for a triple-band small internal antenna which covers the GSM/DCS/IMT-2000 bands. The proposed antenna consists of double shorting posts, feed post, and dual-crossed C-slot patch radiators. A high-frequency structure simulator simulation is employed for optimizing the design parameters, and the simulation results agree with the measured data. The IE3D simulation is also used to obtain the current distribution at the resonant frequencies. The maximum gains at the frequencies 950 and 1860 MHz are measured to be about 1.58 and 1.3 dBi, respectively. These positive antenna gains and triple-bands of the proposed antenna are very attractive features for GSM/DCS/IMT-2000 bands handset applications. |
| 57. | Young-Il Cho; Dong-Hyuk Choi; Seong-Ook Park FDTD analysis of bow-tie antenna by incorporating approximated static field solutions Journal Article IEEE Antennas and Wireless Propagation Letters, 3 , pp. 176 - 179, 2004. Abstract | Links | BibTeX | 태그: International @article{Cho2004, title = {FDTD analysis of bow-tie antenna by incorporating approximated static field solutions}, author = {Young-Il Cho and Dong-Hyuk Choi and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01324098.pdf}, doi = {10.1109/LAWP.2004.833711}, year = {2004}, date = {2004-03-23}, journal = {IEEE Antennas and Wireless Propagation Letters}, volume = {3}, pages = {176 - 179}, abstract = {In this letter, finite-difference time-domain analysis of the bow-tie antenna, including a feeding point, was studied by incorporating an approximated static field solution without additional computation time. By reformulating the static field solution in the rotated coordinate system, we can easily calculate the correction factors and obtain the result that shows a remarkable agreement with the method of moments result in spite of relatively coarse meshes.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } In this letter, finite-difference time-domain analysis of the bow-tie antenna, including a feeding point, was studied by incorporating an approximated static field solution without additional computation time. By reformulating the static field solution in the rotated coordinate system, we can easily calculate the correction factors and obtain the result that shows a remarkable agreement with the method of moments result in spite of relatively coarse meshes. |
| 56. | Young-Il Cho; Dong-Hyuk Choi; Seong-Ook Park Accurate FDTD Analysis of Bow-tie Antenna Journal Article Journal of the Korean Institute of Electromagnetic and Science, 4 (1), pp. 13 - 16, 2004. Abstract | Links | BibTeX | 태그: Domestic @article{Cho2004b, title = {Accurate FDTD Analysis of Bow-tie Antenna}, author = {Young-Il Cho and Dong-Hyuk Choi and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/jees-4-1-13.pdf}, year = {2004}, date = {2004-03-01}, journal = {Journal of the Korean Institute of Electromagnetic and Science}, volume = {4}, number = {1}, pages = {13 - 16}, abstract = {In this paper, FDTD analysis of the bow-tie antenna is investigated by incorporating static field solution that is suitable to the bow-tie antenna without increasing computational time. Transforming static feld solution to the rotated grid system, we can obtain the transformed static field solution which is able to represent field behavior near the oblique edge line of the bow-tie antenna. The result shows a good agreement with a MoM analysis and is compared conformal modeling technique and regular FDTD method.}, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } In this paper, FDTD analysis of the bow-tie antenna is investigated by incorporating static field solution that is suitable to the bow-tie antenna without increasing computational time. Transforming static feld solution to the rotated grid system, we can obtain the transformed static field solution which is able to represent field behavior near the oblique edge line of the bow-tie antenna. The result shows a good agreement with a MoM analysis and is compared conformal modeling technique and regular FDTD method. |
| 55. | Dae-Sik Yim; Seong-Ook Park Novel Wideband Internal chip Antenna for PCS/IMT-2000 Dual-Band Applications Journal Article Microwave and Optical Technology Letters, 40 (4), 2004. Abstract | Links | BibTeX | 태그: International @article{Yim2004, title = {Novel Wideband Internal chip Antenna for PCS/IMT-2000 Dual-Band Applications}, author = {Dae-Sik Yim and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/2004_MOTL_wideband.pdf}, doi = {10.1002/mop.11369}, year = {2004}, date = {2004-02-20}, journal = {Microwave and Optical Technology Letters}, volume = {40}, number = {4}, abstract = {A novel wideband internal chip antenna for KPCS/IMT‐2000 dual‐band applications is investigated experimentally and numerically. It has a wide bandwidth of about 21.4%, measured gain of 2.6 dBi, and an omnidirectional radiation pattern while retaining cost effectiveness and small size. These features make the proposed antenna highly suitable for handset applications.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } A novel wideband internal chip antenna for KPCS/IMT‐2000 dual‐band applications is investigated experimentally and numerically. It has a wide bandwidth of about 21.4%, measured gain of 2.6 dBi, and an omnidirectional radiation pattern while retaining cost effectiveness and small size. These features make the proposed antenna highly suitable for handset applications. |
| 54. | Dong-Uk Sim; Jung-Ick Moon; Seong-Ook Park A wideband monopole antenna for PCS/IMT-2000/Bluetooth applications Journal Article IEEE Antennas and Wireless Propagation Letters, 3 , pp. 45 - 47, 2004. Abstract | Links | BibTeX | 태그: International @article{Sim2004, title = {A wideband monopole antenna for PCS/IMT-2000/Bluetooth applications}, author = {Dong-Uk Sim and Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01290936.pdf}, doi = {10.1109/LAWP.2004.827893}, year = {2004}, date = {2004-02-01}, journal = {IEEE Antennas and Wireless Propagation Letters}, volume = {3}, pages = {45 - 47}, abstract = {A triple-band stubby antenna, fed by a coaxial probe, and a tuning technique are proposed for operating at PCS, IMT-2000, and Bluetooth bands. The proposed antenna, shielded by the antenna cover, consists of two radiating elements. The impedance matching and bandwidth for the proposed antenna are mainly affected by the length of the ground patch at the bottom of a small substrate. By properly choosing the size of the ground patch, the resonant frequencies can be easily adjusted, and a wide impedance bandwidth of 59.7% (|S/sub 11/| < -10 dB), which covers the Korean PCS (1750-1870 MHz), IMT-2000 (1920-2170 MHz), and Bluetooth (2402-2483.5 MHz) can be achieved. An omnidirectional radiation pattern is obtained, and a peak antenna gain of about 3 dBi or more is measured. The electrical characteristics of the proposed antenna make it attractive for use in mobile handset applications.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } A triple-band stubby antenna, fed by a coaxial probe, and a tuning technique are proposed for operating at PCS, IMT-2000, and Bluetooth bands. The proposed antenna, shielded by the antenna cover, consists of two radiating elements. The impedance matching and bandwidth for the proposed antenna are mainly affected by the length of the ground patch at the bottom of a small substrate. By properly choosing the size of the ground patch, the resonant frequencies can be easily adjusted, and a wide impedance bandwidth of 59.7% (|S/sub 11/| < -10 dB), which covers the Korean PCS (1750-1870 MHz), IMT-2000 (1920-2170 MHz), and Bluetooth (2402-2483.5 MHz) can be achieved. An omnidirectional radiation pattern is obtained, and a peak antenna gain of about 3 dBi or more is measured. The electrical characteristics of the proposed antenna make it attractive for use in mobile handset applications. |
| 53. | Kai Li; Seong-Ook Park Electromagnetic field in the presence of a three-layered spherical region Journal Article Progress In Electromagnetics Research, 45 , pp. 103 - 121, 2004. Abstract | Links | BibTeX | 태그: International @article{Li2004b, title = {Electromagnetic field in the presence of a three-layered spherical region}, author = {Kai Li and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/0593.pdf}, doi = {10.2528/PIER03060903 }, year = {2004}, date = {2004-01-31}, journal = {Progress In Electromagnetics Research}, volume = {45}, pages = {103 - 121}, abstract = {In this paper, the region of interest consists of the spherical dielectric earth, coated with a dielectric layer under the air. The simple explicit formulas have been derived for the electromagnetic fields of a vertical electric dipole and vertical magnetic dipole in the presence of three-layered spherical region, respectively. Next, basing on the above results, the formulas for the six components of the field in the air generated by a horizontal electric dipole are derived by using reciprocity. The computations show that the trapped surface wave of electric type can be excited efficiently and the trapped surface wave of magnetic type can not be excited when the thickness l of the dielectric layer is somewhat and satisfies the condition 0 < √(k21-k20)*l < Ï€/2.When the thickness l of the dielectric layer is somewhat and satisfies the condition Ï€/2 < √(k21-k20)*l < Ï€, the trapped surface wave of magnetic type can be excited. These formulas and the computations can be applied to the surface communications at the lower frequencies.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } In this paper, the region of interest consists of the spherical dielectric earth, coated with a dielectric layer under the air. The simple explicit formulas have been derived for the electromagnetic fields of a vertical electric dipole and vertical magnetic dipole in the presence of three-layered spherical region, respectively. Next, basing on the above results, the formulas for the six components of the field in the air generated by a horizontal electric dipole are derived by using reciprocity. The computations show that the trapped surface wave of electric type can be excited efficiently and the trapped surface wave of magnetic type can not be excited when the thickness l of the dielectric layer is somewhat and satisfies the condition 0 < √(k21-k20)*l < Ï€/2.When the thickness l of the dielectric layer is somewhat and satisfies the condition Ï€/2 < √(k21-k20)*l < Ï€, the trapped surface wave of magnetic type can be excited. These formulas and the computations can be applied to the surface communications at the lower frequencies. |
2003 |
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| 52. | Dong-Hyuk Choi; Young-Il Cho; Seong-Ook Park Mutual coupling effects between transmit and receive antennas mounted on rectangular structure using FDTD algorithm Journal Article Microwave and Optical Technology Letters, 40 , pp. 265 - 268, 2003. Abstract | Links | BibTeX | 태그: International @article{Choi2003, title = {Mutual coupling effects between transmit and receive antennas mounted on rectangular structure using FDTD algorithm}, author = {Dong-Hyuk Choi and Young-Il Cho and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/d221rs.pdf}, doi = {10.1002/mop.11348}, year = {2003}, date = {2003-12-16}, journal = {Microwave and Optical Technology Letters}, volume = {40}, pages = {265 - 268}, abstract = {This paper presents the radiation patterns of the monopole antenna mounted on the rectangular shaped structure and the coupling problem between transmit (Tx) and receiver (Rx) antennas obtained by using the FDTD method. A comparison of FDTD calculated results with the exact solution for cylindrical structure validates the accuracy of the algorithm. Using the developed FDTD code, the power radiated from the Tx port influences the Rx port at the nearby working frequency of 2 GHz. The magnitude of coupling effects in terms of scattering parameters has the highest value of about −40 dB within the 2–3.5‐GHz frequency range.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } This paper presents the radiation patterns of the monopole antenna mounted on the rectangular shaped structure and the coupling problem between transmit (Tx) and receiver (Rx) antennas obtained by using the FDTD method. A comparison of FDTD calculated results with the exact solution for cylindrical structure validates the accuracy of the algorithm. Using the developed FDTD code, the power radiated from the Tx port influences the Rx port at the nearby working frequency of 2 GHz. The magnitude of coupling effects in terms of scattering parameters has the highest value of about −40 dB within the 2–3.5‐GHz frequency range. |
| 51. | Dae-Sik Yim; Seong-Ook Park Small Internal Ceramic Chip Antenna for IMT-2000 Handsets Journal Article Electronics Letters, 39 , pp. 1364 - 1365, 2003, ISSN: 0013-5194. Abstract | Links | BibTeX | 태그: International @article{Yim2003, title = {Small Internal Ceramic Chip Antenna for IMT-2000 Handsets}, author = {Dae-Sik Yim and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01244144.pdf}, doi = {10.1049/el:20030891}, issn = {0013-5194}, year = {2003}, date = {2003-11-10}, journal = {Electronics Letters}, volume = {39}, pages = {1364 - 1365}, abstract = {A small internal ceramic chip antenna for IMT-2000 handsets is investigated experimentally and numerically. It has a bandwidth of about 14%, measured gain of 1.3 dBi, and an omnidirectional radiation pattern similar to that of a monopole antenna. These features make the proposed antenna suitable for handset applications.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } A small internal ceramic chip antenna for IMT-2000 handsets is investigated experimentally and numerically. It has a bandwidth of about 14%, measured gain of 1.3 dBi, and an omnidirectional radiation pattern similar to that of a monopole antenna. These features make the proposed antenna suitable for handset applications. |
| 50. | Young-Bae Kwon; Jung-Ick Moon; Seong-Ook Park An internal triple-band planar inverted-F antenna Journal Article IEEE Antennas and Wireless Propagation Letters, 2 , pp. 341 - 344, 2003. Abstract | Links | BibTeX | 태그: International @article{Kwon2003, title = {An internal triple-band planar inverted-F antenna}, author = {Young-Bae Kwon and Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01268485.pdf}, doi = {10.1109/LAWP.2004.824170}, year = {2003}, date = {2003-11-06}, journal = {IEEE Antennas and Wireless Propagation Letters}, volume = {2}, pages = {341 - 344}, abstract = {A novel internal triple-band planar inverted-F antenna (PIFA) for operating at Personal Communication Services/International Mobile Telecommunications (PCS/IMT)-2000/Bluetooth bands is proposed. The proposed antenna can be reduced in size by using a radiating element with thickness and a via hole. A broadband characteristic is obtained by optimizing the thickness of the radiating patch and the offset gap between patch and ground. Dual resonant frequencies are obtained by optimizing the slit lengths and the location of the via hole. The proposed antenna is well suited as an internal antenna due to its small size and wide bandwidth, of about 42%, which covers the PCS (1.75-1.87 GHz), IMT-2000 (1.92-2.17 GHz) and Bluetooth (2.402-2.48 GHz) bands. The design of the proposed antenna and experimental results are discussed.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } A novel internal triple-band planar inverted-F antenna (PIFA) for operating at Personal Communication Services/International Mobile Telecommunications (PCS/IMT)-2000/Bluetooth bands is proposed. The proposed antenna can be reduced in size by using a radiating element with thickness and a via hole. A broadband characteristic is obtained by optimizing the thickness of the radiating patch and the offset gap between patch and ground. Dual resonant frequencies are obtained by optimizing the slit lengths and the location of the via hole. The proposed antenna is well suited as an internal antenna due to its small size and wide bandwidth, of about 42%, which covers the PCS (1.75-1.87 GHz), IMT-2000 (1.92-2.17 GHz) and Bluetooth (2.402-2.48 GHz) bands. The design of the proposed antenna and experimental results are discussed. |
| 49. | Jung-Ick Moon; Seong-Ook Park The Design of Small Size Chip Antenna for 2.4/5.8 dual ISM-band applications Conference 2003 33rd European Microwave Conference, Germany, 2003. Abstract | Links | BibTeX | 태그: International @conference{Moon2003c, title = {The Design of Small Size Chip Antenna for 2.4/5.8 dual ISM-band applications}, author = {Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/04143255.pdf}, doi = {10.1109/EUMA.2003.340849}, year = {2003}, date = {2003-10-02}, booktitle = {2003 33rd European Microwave Conference}, address = {Germany}, abstract = {This paper proposed a novel chip type ceramic dielectric antenna by using the advanced meander line technique for 2.4/5.8 dual ISM-band applications. This antenna is composed of a ceramic dielectric(8×4×1.5mm3, alumina) and substrate(1.52 mm thickness, TMM-4). And to minimize the antenna's available area on the substrate and to reduce the coupling effect with the ground plane, the antenna is located on the corner of substrate. The measured bandwidth and maximum radiation gain of the proposed antenna is 2.35-2.57 GHz(VSWR<2), 2.07 dBi @2.44 GHz and 5.29-6.01 GHz, 1.17 dBi @5.75 GHz. From the result, it is demonstrated that our proposed antenna can be applicable to the dual-ISM band applications.}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } This paper proposed a novel chip type ceramic dielectric antenna by using the advanced meander line technique for 2.4/5.8 dual ISM-band applications. This antenna is composed of a ceramic dielectric(8×4×1.5mm3, alumina) and substrate(1.52 mm thickness, TMM-4). And to minimize the antenna's available area on the substrate and to reduce the coupling effect with the ground plane, the antenna is located on the corner of substrate. The measured bandwidth and maximum radiation gain of the proposed antenna is 2.35-2.57 GHz(VSWR<2), 2.07 dBi @2.44 GHz and 5.29-6.01 GHz, 1.17 dBi @5.75 GHz. From the result, it is demonstrated that our proposed antenna can be applicable to the dual-ISM band applications. |
| 48. | Kai Li; Seong-Ook Park Journal of Electromagnetic Waves and Applications, 17 , pp. 1399 - 1417, 2003. Abstract | Links | BibTeX | 태그: International @article{Li2003, title = {Electromagnetic field in the air generated by a horizontal electric dipole located in the spherical electrically earth coated with a dielectric layer}, author = {Kai Li and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/kai2.pdf}, doi = {10.1163/156939303322519586}, year = {2003}, date = {2003-10-01}, journal = {Journal of Electromagnetic Waves and Applications}, volume = {17}, pages = {1399 - 1417}, abstract = {In this paper, the region of interest consists of the spherical dielectric earth, coated with a dielectric layer under the air. First, we will derive the formulas for the electromagnetic field in the earth of a vertical electric dipole located in the air and those of a vertical magnetic dipole, respectively. Then, the formulas for the components of the field in the air generated by a horizontal electric dipole are obtained by using the reciprocity theorem. Finally, the computations will be carried out.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } In this paper, the region of interest consists of the spherical dielectric earth, coated with a dielectric layer under the air. First, we will derive the formulas for the electromagnetic field in the earth of a vertical electric dipole located in the air and those of a vertical magnetic dipole, respectively. Then, the formulas for the components of the field in the air generated by a horizontal electric dipole are obtained by using the reciprocity theorem. Finally, the computations will be carried out. |
| 47. | Jung-Ick Moon; Seong-Ook Park Small chip antenna for 2.4/5.8-GHz dual ISM-band applications Journal Article IEEE Antennas and Wireless Propagation Letters, 2 , pp. 313 - 315, 2003. Abstract | Links | BibTeX | 태그: International @article{Moon2003b, title = {Small chip antenna for 2.4/5.8-GHz dual ISM-band applications}, author = {Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01267077.pdf}, doi = {10.1109/LAWP.2004.824167}, year = {2003}, date = {2003-09-25}, journal = {IEEE Antennas and Wireless Propagation Letters}, volume = {2}, pages = {313 - 315}, abstract = {We propose a novel chip-type ceramic dielectric antenna using the advanced meander line technique for 2.4/5.8-GHz dual ISM-band applications. The proposed antenna is composed of small ceramic dielectric (8 mm /spl times/ 4 mm /spl times/ 1.5 mm, alumina) and substrate (thickness of 1.52 mm, TMM-4). In order to minimize the antenna's available area on the substrate and to reduce the coupling effect with the ground plane, the antenna is located at the corner of the substrate. The measured bandwidths and maximum radiation gains are 2.35-2.57 GHz, 2.07 dBi at 2.44 GHz (VSWR<2) and 5.29-6.01 GHz, 1.17 dBi at 5.75 GHz, respectively. From these results, it is demonstrated that our proposed antenna can be applicable to dual-ISM band applications.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } We propose a novel chip-type ceramic dielectric antenna using the advanced meander line technique for 2.4/5.8-GHz dual ISM-band applications. The proposed antenna is composed of small ceramic dielectric (8 mm /spl times/ 4 mm /spl times/ 1.5 mm, alumina) and substrate (thickness of 1.52 mm, TMM-4). In order to minimize the antenna's available area on the substrate and to reduce the coupling effect with the ground plane, the antenna is located at the corner of the substrate. The measured bandwidths and maximum radiation gains are 2.35-2.57 GHz, 2.07 dBi at 2.44 GHz (VSWR<2) and 5.29-6.01 GHz, 1.17 dBi at 5.75 GHz, respectively. From these results, it is demonstrated that our proposed antenna can be applicable to dual-ISM band applications. |
| 46. | Jung-Ick Moon; Seong-Ook Park The design of small size chip ceramic dielectric antenna for Bluetooth application Conference IEEE Antennas and Propagation Society International Symposium, U.S., 2003. Abstract | Links | BibTeX | 태그: International @conference{Moon2003d, title = {The design of small size chip ceramic dielectric antenna for Bluetooth application}, author = {Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01219393.pdf}, doi = {10.1109/APS.2003.1219393}, year = {2003}, date = {2003-06-22}, booktitle = {IEEE Antennas and Propagation Society International Symposium}, address = {U.S.}, abstract = {This paper proposes a novel chip type ceramic dielectric antenna by using the advanced meander line technique that the radiation metals are formed on both the face of ceramic dielectric (8/spl times/4/spl times/1.5 mm, alumina) and the two faces of the substrate (1.0 mm thickness FR-4). The performance of the antenna model has a good agreement between measured and computed results. In the results, it has a 10 dB return-loss bandwidth (2.4-2.48 GHz) and 0.5 dBi measured radiation gain for Bluetooth application.}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } This paper proposes a novel chip type ceramic dielectric antenna by using the advanced meander line technique that the radiation metals are formed on both the face of ceramic dielectric (8/spl times/4/spl times/1.5 mm, alumina) and the two faces of the substrate (1.0 mm thickness FR-4). The performance of the antenna model has a good agreement between measured and computed results. In the results, it has a 10 dB return-loss bandwidth (2.4-2.48 GHz) and 0.5 dBi measured radiation gain for Bluetooth application. |
| 45. | Jung-Min Park; Dong-Hyuk Choi; Seong-Ook Park IEEE Antennas and Propagation Society International Symposium, U.S., 2003. Abstract | Links | BibTeX | 태그: International @conference{Park2003b, title = {Wireless vital signal detection systems and its applications at 1.9GHz and 10GHz [biomedical applications]}, author = {Jung-Min Park and Dong-Hyuk Choi and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01220381.pdf}, doi = {10.1109/APS.2003.1220381}, year = {2003}, date = {2003-06-22}, booktitle = {IEEE Antennas and Propagation Society International Symposium}, address = {U.S.}, abstract = {A wireless vital signal detection system, which is analogous to Doppler radar, can measure respiration and heart rates with periodic movement of skin and muscle near the heart. The detection system consists of antenna, RF transceiver (transmitter and receiver), and baseband section. In this paper, the link budget of the detecting system is analyzed and the signal detected from the system is compared with the electrocardiogram (ECG) signal of a monitor which is used for patient monitoring in a hospital. Then, the detection of vital signs is also performed according to various environments, such as different distances and behind a wall.}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } A wireless vital signal detection system, which is analogous to Doppler radar, can measure respiration and heart rates with periodic movement of skin and muscle near the heart. The detection system consists of antenna, RF transceiver (transmitter and receiver), and baseband section. In this paper, the link budget of the detecting system is analyzed and the signal detected from the system is compared with the electrocardiogram (ECG) signal of a monitor which is used for patient monitoring in a hospital. Then, the detection of vital signs is also performed according to various environments, such as different distances and behind a wall. |
| 44. | Young-Bae Kwon; Seong-Ook Park Broadband Microstrip Patch Antenna with Rhombic Slot Conference IEEE Antennas and Propagation Society International Symposium, U.S., 2003. Abstract | Links | BibTeX | 태그: International @conference{Kwon2003b, title = {Broadband Microstrip Patch Antenna with Rhombic Slot}, author = {Young-Bae Kwon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01219378.pdf}, doi = {10.1109/APS.2003.1219378}, year = {2003}, date = {2003-06-22}, booktitle = {IEEE Antennas and Propagation Society International Symposium}, address = {U.S.}, abstract = {This paper presents the rhombic slot antenna that has a broadband characteristic by using a low cost foam-substrate. The feed line is embedded in the middle of the triplate to prevent unwanted and spurious radiation. The proposed rhombic slot antenna has a rectangular patch with supplementary section to improve the impedance bandwidth performance. Experiments using a 2/spl times/1 array antenna are performed to validate the simulation. A bandwidth of 40% can be achieved. The electrical characteristics of the proposed antenna make it attractive for use in satellite communications.}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } This paper presents the rhombic slot antenna that has a broadband characteristic by using a low cost foam-substrate. The feed line is embedded in the middle of the triplate to prevent unwanted and spurious radiation. The proposed rhombic slot antenna has a rectangular patch with supplementary section to improve the impedance bandwidth performance. Experiments using a 2/spl times/1 array antenna are performed to validate the simulation. A bandwidth of 40% can be achieved. The electrical characteristics of the proposed antenna make it attractive for use in satellite communications. |
| 43. | Jung-Ick Moon; Seong-Ook Park Small Chip Dielectric Antenna for Bluetooth Application Journal Article Microwave and Optical Technology Letter, 39 , pp. 366 - 368, 2003. Abstract | Links | BibTeX | 태그: International @article{Moon2003, title = {Small Chip Dielectric Antenna for Bluetooth Application}, author = {Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/11218.pdf}, year = {2003}, date = {2003-05-03}, journal = {Microwave and Optical Technology Letter}, volume = {39}, pages = {366 - 368}, abstract = {This paper proposes the design of a small chip-type dielectric antenna using the advanced meander line technique, so that the radiation metals are formed on the bottom face of a ceramic dielectric and on both faces of the substrate (thickness 1.0 mm, FR-4). The performance of the proposed antenna mode, which remarkably reduced the size, shows good agreement between measured and computed results. The measured results show that this antenna has 11.2% bandwidth and 2.3-dBi maximum radiation gain, respectively.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } This paper proposes the design of a small chip-type dielectric antenna using the advanced meander line technique, so that the radiation metals are formed on the bottom face of a ceramic dielectric and on both faces of the substrate (thickness 1.0 mm, FR-4). The performance of the proposed antenna mode, which remarkably reduced the size, shows good agreement between measured and computed results. The measured results show that this antenna has 11.2% bandwidth and 2.3-dBi maximum radiation gain, respectively. |
| 42. | Jung-Min Park; Dong-Hyuk Choi; Seong-Ook Park Noninvasive Life Signal Detecting Systems and Their Analyses Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 3 (1), pp. 45 - 49, 2003. Abstract | Links | BibTeX | 태그: Domestic @article{Park2003, title = {Noninvasive Life Signal Detecting Systems and Their Analyses}, author = {Jung-Min Park and Dong-Hyuk Choi and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/jees-3-1-45.pdf}, year = {2003}, date = {2003-05-01}, journal = {Journal of Korean Institute of Electromagnetic Engineering and Science}, volume = {3}, number = {1}, pages = {45 - 49}, abstract = {Wireless life signal detecting system is implemented with using the mechanism of Doppler Effect. This system can measure the respiration and heart rates with the periodic movement of skin and muscle near the heart. The system is consisted of antenna, RF transmitter, receiver, and display part. We did use two operating frequencies at 1.9 ㎓ and 10 ㎓. Firstly, the link budget about detecting system is analyzed and the signal detected from the system is compared with electrocardiogram(ECG) of monitor which is using for patient monitoring in hospital. Secondly, the detection of vital sign is also performed according to the different distances, and including behind the wall.}, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } Wireless life signal detecting system is implemented with using the mechanism of Doppler Effect. This system can measure the respiration and heart rates with the periodic movement of skin and muscle near the heart. The system is consisted of antenna, RF transmitter, receiver, and display part. We did use two operating frequencies at 1.9 ㎓ and 10 ㎓. Firstly, the link budget about detecting system is analyzed and the signal detected from the system is compared with electrocardiogram(ECG) of monitor which is using for patient monitoring in hospital. Secondly, the detection of vital sign is also performed according to the different distances, and including behind the wall. |
2002 |
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| 41. | Dong-Hyuk Choi; Seong-Ook Park Radiation Patterns of the Antenna Mounted on Complex Structure Using FDTD Algorithm Conference International Symposium on Antennas and Propagation, Japan, 2002. Links | BibTeX | 태그: International @conference{Choi2002, title = {Radiation Patterns of the Antenna Mounted on Complex Structure Using FDTD Algorithm}, author = {Dong-Hyuk Choi and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/00149.pdf}, year = {2002}, date = {2002-11-25}, booktitle = {International Symposium on Antennas and Propagation}, address = {Japan}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } |
| 40. | Kyoung-Bin Park; Seong-Ook Park International Symposium on Antennas and Propagation, Japan, 2002. Links | BibTeX | 태그: International @conference{Park2002, title = {Estimation of the enhanced scanning performance of triangular grid in cavity-backed microstrip array antenna}, author = {Kyoung-Bin Park and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/00131.pdf}, year = {2002}, date = {2002-11-25}, booktitle = {International Symposium on Antennas and Propagation}, address = {Japan}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } |
| 39. | Jong-Pil Lee; Seong-Ook Park The meander line antenna for bluetooth Journal Article Microwave and Optical Technology Letters, 34 , pp. 149 - 151, 2002. Abstract | Links | BibTeX | 태그: International @article{Lee2002, title = {The meander line antenna for bluetooth}, author = {Jong-Pil Lee and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/23rs.pdf}, doi = {10.1002/mop.10399}, year = {2002}, date = {2002-06-19}, journal = {Microwave and Optical Technology Letters}, volume = {34}, pages = {149 - 151}, abstract = {This Letter proposes a novel antenna that has a small size and high gain features. The conventional chip antennas are made of very high dielectric materials that result in small size but inherently low radiation gain. Instead of using the dielectric materials, the proposed antenna has a small size while retaining high gain. The bandwidth and gain of this model, with antenna size 15 × 10 × 6 mm, have 9.0% (at 2.44 GHz, |S11| ≤ −10 dB) and 2.73 dBi, respectively.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } This Letter proposes a novel antenna that has a small size and high gain features. The conventional chip antennas are made of very high dielectric materials that result in small size but inherently low radiation gain. Instead of using the dielectric materials, the proposed antenna has a small size while retaining high gain. The bandwidth and gain of this model, with antenna size 15 × 10 × 6 mm, have 9.0% (at 2.44 GHz, |S11| ≤ −10 dB) and 2.73 dBi, respectively. |
| 38. | Dae-Sik Yim; Seong-Ook Park A Novel Small Size and Wide-Band Internal Chip Antenna for IMT-2000 Conference IEEE Antennas and Propagation Society International Symposium, U.S., 2002, ISBN: 0-7803-7330-8. Links | BibTeX | 태그: International @conference{Yim2002, title = {A Novel Small Size and Wide-Band Internal Chip Antenna for IMT-2000}, author = {Dae-Sik Yim and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01018146.pdf}, doi = {10.1109/APS.2002.1018146}, isbn = {0-7803-7330-8}, year = {2002}, date = {2002-06-16}, booktitle = {IEEE Antennas and Propagation Society International Symposium}, address = {U.S.}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } |
| 37. | Kai Li; Seong-Ook Park 2002 3rd International Symposium on Electromagnetic Compatibility, China, 2002, ISBN: 0-7803-7277-8. Abstract | Links | BibTeX | 태그: International @conference{Li2002, title = {Analytical Evaluation of the Asymptotic Impedance Matrix of a Uniaxial Substrate with Roof-Top Functions}, author = {Kai Li and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/01177514.pdf}, doi = {10.1109/ELMAGC.2002.1177514}, isbn = {0-7803-7277-8}, year = {2002}, date = {2002-05-21}, booktitle = {2002 3rd International Symposium on Electromagnetic Compatibility}, address = {China}, abstract = {An asymptotic technique is presented to solve the asymptotic part of the impedance matrix in the spectral domain for printed circuit structures on a uniaxial substrate by using roof-top subdomain expansions. The infinite double integral of the asymptotic part of the impedance matrix is reduced to a finite one-dimensional integral by performing the integral transform technique. The efficiency and accuracy of the proposed method are compared with those of the conventional method, and it is demonstrated that the proposed method reduce the computation and improve the accuracy for the anisotropic uniaxial case.}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } An asymptotic technique is presented to solve the asymptotic part of the impedance matrix in the spectral domain for printed circuit structures on a uniaxial substrate by using roof-top subdomain expansions. The infinite double integral of the asymptotic part of the impedance matrix is reduced to a finite one-dimensional integral by performing the integral transform technique. The efficiency and accuracy of the proposed method are compared with those of the conventional method, and it is demonstrated that the proposed method reduce the computation and improve the accuracy for the anisotropic uniaxial case. |
| 36. | Jong-Pil Lee; Seong-Ook Park Bow‐tie wide‐band monopole antenna with the novel impedance‐matching technique Journal Article Microwave and Optical Technology Letters, 33 , pp. 448 - 452, 2002. Abstract | Links | BibTeX | 태그: International @article{Lee2002b, title = {Bow‐tie wide‐band monopole antenna with the novel impedance‐matching technique}, author = {Jong-Pil Lee and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/4425rs.pdf}, doi = {10.1002/mop.10347}, year = {2002}, date = {2002-05-17}, journal = {Microwave and Optical Technology Letters}, volume = {33}, pages = {448 - 452}, abstract = {A staircase bow‐tie monopole‐type antenna that features a novel broadband technique is investigated experimentally and numerically. A bandwidth of 77.1% (VSWR ≤ 2) can be achieved, and an omnidirectional radiation pattern is obtained. The electrical characteristics of the proposed antenna make it attractive for use in multiband mobile systems.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } A staircase bow‐tie monopole‐type antenna that features a novel broadband technique is investigated experimentally and numerically. A bandwidth of 77.1% (VSWR ≤ 2) can be achieved, and an omnidirectional radiation pattern is obtained. The electrical characteristics of the proposed antenna make it attractive for use in multiband mobile systems. |
2001 |
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| 35. | Chan-Byoung Chae; Jong-Pil Lee; Seong-Ook Park Analytical Asymptotic Extraction Technique for the Analysis of Bend Discontinuity Journal Article Progress In Electromagnetics Research, 33 , pp. 219 - 235, 2001. Abstract | Links | BibTeX | 태그: International @article{Chae2001, title = {Analytical Asymptotic Extraction Technique for the Analysis of Bend Discontinuity}, author = {Chan-Byoung Chae and Jong-Pil Lee and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/12rk.pdf}, doi = {10.2528/PIER01012102}, year = {2001}, date = {2001-10-01}, journal = {Progress In Electromagnetics Research}, volume = {33}, pages = {219 - 235}, abstract = {The purpose of this paper is to use the analytical asymptotic extraction technique to analyze the bend discontinuity. We show that the derived analytical techniques significantly reduce the computational time while improving the accuracy compared to the conventional method. Especially, the advantage of the proposed method can eliminate the truncation error for evaluating the asymptotic part of impedance matrix. The proposed method has applied for solving the bend discontinuity, and verified with measurement results.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } The purpose of this paper is to use the analytical asymptotic extraction technique to analyze the bend discontinuity. We show that the derived analytical techniques significantly reduce the computational time while improving the accuracy compared to the conventional method. Especially, the advantage of the proposed method can eliminate the truncation error for evaluating the asymptotic part of impedance matrix. The proposed method has applied for solving the bend discontinuity, and verified with measurement results. |
| 34. | Kai Li; Seong-Ook Park Dyadic Green's Function for an Unbounded Anisotropic Medium in Cylindrical Coordinates Journal Article Journal of Electromagnetic Waves and Applications, 15 , pp. 1667 - 1668, 2001. Abstract | Links | BibTeX | 태그: International @article{Li2001, title = {Dyadic Green's Function for an Unbounded Anisotropic Medium in Cylindrical Coordinates}, author = {Kai Li and Seong-Ook Park }, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/dyadic.pdf}, doi = {10.1163/156939301X00166}, year = {2001}, date = {2001-10-01}, journal = {Journal of Electromagnetic Waves and Applications}, volume = {15}, pages = {1667 - 1668}, abstract = {The dyadic Green's function for an unbounded anisotropic medium is treated analytically in the Fourier domain. The Green's function, which is expressed as a triple Fourier integral, can be next reduced to a double integral by performing the integration over the longitudinal Fourier variable or the transverse Fourier variable. The singular behavior of Green's dyadic is discussed for the general anisotropic case.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } The dyadic Green's function for an unbounded anisotropic medium is treated analytically in the Fourier domain. The Green's function, which is expressed as a triple Fourier integral, can be next reduced to a double integral by performing the integration over the longitudinal Fourier variable or the transverse Fourier variable. The singular behavior of Green's dyadic is discussed for the general anisotropic case. |
| 33. | Young-Bae Jung; Young-Hwan Lee; Jung-Ick Moon; Seong-Ook Park 변형된 적층구조를 갖는 단일급전방식의 광대역 평판형 배열안테나 연구 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 12 (6), pp. 919 - 930, 2001. Abstract | Links | BibTeX | 태그: Domestic @article{Jung2001b, title = {변형된 적층구조를 갖는 단일급전방식의 광대역 평판형 배열안테나 연구}, author = {Young-Bae Jung and Young-Hwan Lee and Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/JJPHCH_2001_v12n6_919.pdf}, year = {2001}, date = {2001-10-01}, journal = {Journal of Korean Institute of Electromagnetic Engineering and Science}, volume = {12}, number = {6}, pages = {919 - 930}, abstract = {본 논문에서는 원형편파를 이용하는 적층구조의 광대역 평판형 배열안테나를 연구하였으며, 적층구조의 보조적인 편파유발부와 기생패치의 최적 설계를 통하여, 임피던스 및 축비특성에서의 이중공진특성을 구현하였다 따라서, 기존에 사용되고 있는 축비대역확장기법을 사용하지 않는 단일급전방식 원형편파용 평판안테나의 대역확장에 기여할 수 있으며, 공진주파수의 보정설계를 통하여 이중대역안테나로의 활용을 기대할 수 있다. 또한, 해당안테나를 국내 위성방송서비스대역에 적용하여 설계 및 제작하였으며, 임피던스대역폭 9.7%, 안테나 이득 24 dBi와 이중공진특성에 의한 2.8 %(11.4 GHz)와 1.4 %(11.8 GHz)의 3 dB 축비대역폭을 갖는다.}, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } 본 논문에서는 원형편파를 이용하는 적층구조의 광대역 평판형 배열안테나를 연구하였으며, 적층구조의 보조적인 편파유발부와 기생패치의 최적 설계를 통하여, 임피던스 및 축비특성에서의 이중공진특성을 구현하였다 따라서, 기존에 사용되고 있는 축비대역확장기법을 사용하지 않는 단일급전방식 원형편파용 평판안테나의 대역확장에 기여할 수 있으며, 공진주파수의 보정설계를 통하여 이중대역안테나로의 활용을 기대할 수 있다. 또한, 해당안테나를 국내 위성방송서비스대역에 적용하여 설계 및 제작하였으며, 임피던스대역폭 9.7%, 안테나 이득 24 dBi와 이중공진특성에 의한 2.8 %(11.4 GHz)와 1.4 %(11.8 GHz)의 3 dB 축비대역폭을 갖는다. |
| 32. | Jong-Pil Lee; Seong-Ook Park 광대역 기판 인쇄형 모노폴 안테나 설계 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 12 (6), pp. 958 - 964, 2001. Abstract | Links | BibTeX | 태그: Domestic @article{Lee2001b, title = {광대역 기판 인쇄형 모노폴 안테나 설계}, author = {Jong-Pil Lee and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/JJPHCH_2001_v12n6_958.pdf}, year = {2001}, date = {2001-10-01}, journal = {Journal of Korean Institute of Electromagnetic Engineering and Science}, volume = {12}, number = {6}, pages = {958 - 964}, abstract = {본 논문에서는 Bow-tie 다이폴 안테나를 변형시킨 계단형 Bow-tie 형태의 모노폴 안테나의 급전부의 안테나에 슬릿(slit) 장착 및 이면(裏面)의 접지면의 길이를 변화시키는 임피던스 정합 방법을 적용하여 광대역 특성을 갖는 안테나를 제안한다. 제안된 안테나의 길이는 1/4파장보다 작고, 대역폭은 2:1 VSWR의 범위에서 77.1 %, 1.7 GHz에서의 안테나 이득은 1.7 dBi를 얻었으며 방사패턴은 전 방향성을 가지고 있다.}, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } 본 논문에서는 Bow-tie 다이폴 안테나를 변형시킨 계단형 Bow-tie 형태의 모노폴 안테나의 급전부의 안테나에 슬릿(slit) 장착 및 이면(裏面)의 접지면의 길이를 변화시키는 임피던스 정합 방법을 적용하여 광대역 특성을 갖는 안테나를 제안한다. 제안된 안테나의 길이는 1/4파장보다 작고, 대역폭은 2:1 VSWR의 범위에서 77.1 %, 1.7 GHz에서의 안테나 이득은 1.7 dBi를 얻었으며 방사패턴은 전 방향성을 가지고 있다. |
| 31. | Jung-Ick Moon; Seong-Ook Park 소형 고이득 Bluetooth용 칩형 유전체 안테나 설계 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 12 (6), pp. 983 - 993, 2001. Abstract | Links | BibTeX | 태그: Domestic @article{Moon2001, title = {소형 고이득 Bluetooth용 칩형 유전체 안테나 설계}, author = {Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/JJPHCH_2001_v12n6_983.pdf}, year = {2001}, date = {2001-10-01}, journal = {Journal of Korean Institute of Electromagnetic Engineering and Science}, volume = {12}, number = {6}, pages = {983 - 993}, abstract = {본 논문에서는 meander line을 이용한 소형 유전체 안테나 모델을 제안하고 이에 대한 계산과 실험을 통하여 그 성능을 검증하였다. 그 결과, 방사전극의 형성면을 substrate의 전면과 후면에도 적용하고 세라믹 유전체의 크기가 8$\times$4$\times$1.5 mm 인 알루미나와 두께가 1.0 mm 인 substrate(FR-4)상에 방사전극을 형성하여 VSWR<1.5 인 범위에서 Bluetooth용 주파수 대역을 포함하는 성능을 보였다. 또한, 방사패턴은 일반적인 모노폴 안테나와 유사하고 측정된 최대 방사이득은 1.7 dBi로 상용화가 가능한 안테나 모델을 선보였다. 따라서, 본 논문에서 제안하는 표면 실장형 유전체 안테나는 현재의 안테나 소형화 문제와 방사이득을 개선하는 해결수단이 될 수 있으리라 본다.}, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } 본 논문에서는 meander line을 이용한 소형 유전체 안테나 모델을 제안하고 이에 대한 계산과 실험을 통하여 그 성능을 검증하였다. 그 결과, 방사전극의 형성면을 substrate의 전면과 후면에도 적용하고 세라믹 유전체의 크기가 8$times$4$times$1.5 mm 인 알루미나와 두께가 1.0 mm 인 substrate(FR-4)상에 방사전극을 형성하여 VSWR<1.5 인 범위에서 Bluetooth용 주파수 대역을 포함하는 성능을 보였다. 또한, 방사패턴은 일반적인 모노폴 안테나와 유사하고 측정된 최대 방사이득은 1.7 dBi로 상용화가 가능한 안테나 모델을 선보였다. 따라서, 본 논문에서 제안하는 표면 실장형 유전체 안테나는 현재의 안테나 소형화 문제와 방사이득을 개선하는 해결수단이 될 수 있으리라 본다. |
| 30. | Jong-Pil Lee; Seong-Ook Park; Jung-Keun Oh; Ke-Young Park A novel small size and high gain antenna for 2.45GHz band application Conference IEEE Antennas and Propagation Society International Symposium, U.S., 2001. Abstract | Links | BibTeX | 태그: International @conference{Lee2001, title = {A novel small size and high gain antenna for 2.45GHz band application}, author = {Jong-Pil Lee and Seong-Ook Park and Jung-Keun Oh and Ke-Young Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/00959499.pdf}, doi = {10.1109/APS.2001.959499}, year = {2001}, date = {2001-07-08}, booktitle = {IEEE Antennas and Propagation Society International Symposium}, address = {U.S.}, abstract = {We propose a novel patch antenna with a small size and high gain. The conventional chip antennas are made of very high dielectric materials. They have a small size but a low radiation gain. Instead of using a dielectric material, the proposed antenna has a small size while retaining a high gain. The proposed antenna has a size of 15/spl times/10/spl times/6 mm, a bandwidth of 7.4%(@2.44 GHz. |Si/sub 11/|/spl les/-10 dB and 2.73 dBi gain.}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } We propose a novel patch antenna with a small size and high gain. The conventional chip antennas are made of very high dielectric materials. They have a small size but a low radiation gain. Instead of using a dielectric material, the proposed antenna has a small size while retaining a high gain. The proposed antenna has a size of 15/spl times/10/spl times/6 mm, a bandwidth of 7.4%(@2.44 GHz. |Si/sub 11/|/spl les/-10 dB and 2.73 dBi gain. |
| 29. | Young-Bae Jung; Seong-Ook Park Low-cost design of stacked microstrip array antenna for DBS application Conference IEEE Antennas and Propagation Society International Symposium, U.S., 2001. Abstract | Links | BibTeX | 태그: International @conference{Jung2001, title = {Low-cost design of stacked microstrip array antenna for DBS application}, author = {Young-Bae Jung and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/00959609.pdf}, doi = {10.1109/APS.2001.959609}, year = {2001}, date = {2001-07-08}, booktitle = {IEEE Antennas and Propagation Society International Symposium}, address = {U.S.}, abstract = {This paper presents a circularly polarized stacked slot array antenna using a low cost foam-substrate. The feed line is embedded in the middle of the triplate to prevent unwanted and spurious radiation. The proposed stacked slot array antenna has a modified slot with supplementary section to improve the axial ratio and impedance bandwidth performance. The experimental and theoretical results of an 8/spl times/8 array antenna are performed to receive a DBS (Direct Broadcast from Satellite) signal.}, keywords = {International}, pubstate = {published}, tppubtype = {conference} } This paper presents a circularly polarized stacked slot array antenna using a low cost foam-substrate. The feed line is embedded in the middle of the triplate to prevent unwanted and spurious radiation. The proposed stacked slot array antenna has a modified slot with supplementary section to improve the axial ratio and impedance bandwidth performance. The experimental and theoretical results of an 8/spl times/8 array antenna are performed to receive a DBS (Direct Broadcast from Satellite) signal. |
| 28. | Dong-Hyuk Choi; Kyoung-Bin Park; Young-Bae Jung; Seong-Ook Park 어태치먼트 모드를 적용한 레이돔 원형 마이크로스트립 안테나 이득 해석 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 12 (4), pp. 532 - 541, 2001. Abstract | Links | BibTeX | 태그: Domestic @article{Choi2001, title = {어태치먼트 모드를 적용한 레이돔 원형 마이크로스트립 안테나 이득 해석}, author = {Dong-Hyuk Choi and Kyoung-Bin Park and Young-Bae Jung and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/JJPHCH_2001_v12n4_532.pdf}, year = {2001}, date = {2001-06-01}, journal = {Journal of Korean Institute of Electromagnetic Engineering and Science}, volume = {12}, number = {4}, pages = {532 - 541}, abstract = {프로브로 급전되는 마이크로스트립 안테나의 경우 급전점에서 급격히 변하는 전류 성분들이 존재하게 되는데, 이러한 성분들은 패치와 프로브 간의 전류의 연속성을 보장해 줄 수 있는 어태치먼트 모드를 사용하여 정확하게 표현될수 있다. 본 논문은 프로브 급전구조를 정확하게 모델링 할 수 있는 어태치먼트 모드를 사용하여 레이돔이 올려진 원형 마아이크로스트립 안테나를 해석하여 반사 계수 및 이득 변화의 영향을 분석하였다.}, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } 프로브로 급전되는 마이크로스트립 안테나의 경우 급전점에서 급격히 변하는 전류 성분들이 존재하게 되는데, 이러한 성분들은 패치와 프로브 간의 전류의 연속성을 보장해 줄 수 있는 어태치먼트 모드를 사용하여 정확하게 표현될수 있다. 본 논문은 프로브 급전구조를 정확하게 모델링 할 수 있는 어태치먼트 모드를 사용하여 레이돔이 올려진 원형 마아이크로스트립 안테나를 해석하여 반사 계수 및 이득 변화의 영향을 분석하였다. |
| 27. | Kai Li; Seong-Ook Park Dyadic Green's Function for an Unbounded Anisotropic Medium in Cylindrical Coordinates Journal Article Journal of The Korea Electromagnetic Engineering Society, 1 (1), pp. 54 - 59, 2001. Abstract | Links | BibTeX | 태그: Domestic @article{Li2001b, title = {Dyadic Green's Function for an Unbounded Anisotropic Medium in Cylindrical Coordinates}, author = {Kai Li and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/Dyadic_Green.pdf}, year = {2001}, date = {2001-05-01}, journal = {Journal of The Korea Electromagnetic Engineering Society}, volume = {1}, number = {1}, pages = {54 - 59}, abstract = {The dyadic Green's function for an unbounded anisotropic medium is treated analytically in the Fourier domain. The Green's function, which is expressed as a triple Fourier integral, can be next reduced to a double integral by performing the integration over the longitudinal Fourier variable or the transverse Fourier variable. The singular behavior of Green's dyadic is discussed for the general anisotropic case. }, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } The dyadic Green's function for an unbounded anisotropic medium is treated analytically in the Fourier domain. The Green's function, which is expressed as a triple Fourier integral, can be next reduced to a double integral by performing the integration over the longitudinal Fourier variable or the transverse Fourier variable. The singular behavior of Green's dyadic is discussed for the general anisotropic case. |
2000 |
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| 26. | Kyoung-Bin Park; Young-Bae Jung; Dong-Hyuk Choi; Seong-Ook Park 삼각형 격자 구조를 가지는 Cavity-backed 원형 마이크로스트립 배열 안테나 해석에 관한 연구 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 11 (8), pp. 1337 - 1345, 2000. Abstract | Links | BibTeX | 태그: Domestic @article{Park2000d, title = {삼각형 격자 구조를 가지는 Cavity-backed 원형 마이크로스트립 배열 안테나 해석에 관한 연구}, author = {Kyoung-Bin Park and Young-Bae Jung and Dong-Hyuk Choi and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/JJPHCH_2000_v11n8_1337.pdf}, year = {2000}, date = {2000-12-01}, journal = {Journal of Korean Institute of Electromagnetic Engineering and Science}, volume = {11}, number = {8}, pages = {1337 - 1345}, abstract = {마이크로스트립 안테나는 경량, 평면 구조와 대량 생산 등의 장점에 의해 최근 각광을 받고 있다. 특히 식각 기술에 의한 제조 등의 장점으로 인해 배열 안테나로서 강점을 나타내며 집중적인 연구의 대상이 되고 있다. 반면 몇 가지 단점에 의해 설계 및 제작 상에 어려움을 겪게 되는데 표면 전파(surface wave)에 의한 음영각(scanblindness) 발생 및 이에 의한 조향각(scan angle)의 제한 등을 들 수 있다. 이 논문에서는 이러한 문제점을 해결 할 수 있는 cavity-backed 마이크로스트립 방사소자를 사용하여 위상 배열 안테나 구조에서 강점을 나타내게 되는 삼각형 구조 배열 안테나를 해석하는 알고리즘을 설명하고 이를 통해 이러한 구조가 실제 성능의 개선을 가져 올 수 있음을 보이고자 한다.}, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } 마이크로스트립 안테나는 경량, 평면 구조와 대량 생산 등의 장점에 의해 최근 각광을 받고 있다. 특히 식각 기술에 의한 제조 등의 장점으로 인해 배열 안테나로서 강점을 나타내며 집중적인 연구의 대상이 되고 있다. 반면 몇 가지 단점에 의해 설계 및 제작 상에 어려움을 겪게 되는데 표면 전파(surface wave)에 의한 음영각(scanblindness) 발생 및 이에 의한 조향각(scan angle)의 제한 등을 들 수 있다. 이 논문에서는 이러한 문제점을 해결 할 수 있는 cavity-backed 마이크로스트립 방사소자를 사용하여 위상 배열 안테나 구조에서 강점을 나타내게 되는 삼각형 구조 배열 안테나를 해석하는 알고리즘을 설명하고 이를 통해 이러한 구조가 실제 성능의 개선을 가져 올 수 있음을 보이고자 한다. |
| 25. | Kyoung-Bin Park; Young-Bae Jung; Dong-Hyuk Choi; Seong-Ook Park 원형 공진기 구조 미이크로스트립 안테나 해석 및 구현 방법 연구 Journal Article Journal of the Institute of Electronics Engineers of Korea, 37 (12), pp. 1 - 8, 2000. Abstract | Links | BibTeX | 태그: Domestic @article{Park2000e, title = {원형 공진기 구조 미이크로스트립 안테나 해석 및 구현 방법 연구}, author = {Kyoung-Bin Park and Young-Bae Jung and Dong-Hyuk Choi and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/4413sz.pdf}, year = {2000}, date = {2000-12-01}, journal = {Journal of the Institute of Electronics Engineers of Korea}, volume = {37}, number = {12}, pages = {1 - 8}, abstract = {본 논문에서는 모우멘트법을 사용하여 공진기 구조(cavity-backed) 마이크로스트립 방사 소자를 해석, 설계하고 이를 제작하여 검증하였다. 또한 본 논문에서 제안한 알고리즘을 설명하고 이러한 알고리즘을 구현 한 해석 프로그램을 사용하여 공진기 구조 마이크로스트립 방사 소자의 주요 설계 치수를 변화 시키면서 방사 소자의 특성 변화를 살펴 봄으로써 실제 설계에서 사용되어질 수 있는 지표를 도출하고자 하였다. 또한 이러한 구조가 배열 안테나로 사용될 경우 실제로 음영각(scan blindness) 발생을 억제할 수 있는 지를 해석해 봄으로써 공진기 구조 마이크로 스트립 안테나의 유용성을 확인해 보았다.}, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } 본 논문에서는 모우멘트법을 사용하여 공진기 구조(cavity-backed) 마이크로스트립 방사 소자를 해석, 설계하고 이를 제작하여 검증하였다. 또한 본 논문에서 제안한 알고리즘을 설명하고 이러한 알고리즘을 구현 한 해석 프로그램을 사용하여 공진기 구조 마이크로스트립 방사 소자의 주요 설계 치수를 변화 시키면서 방사 소자의 특성 변화를 살펴 봄으로써 실제 설계에서 사용되어질 수 있는 지표를 도출하고자 하였다. 또한 이러한 구조가 배열 안테나로 사용될 경우 실제로 음영각(scan blindness) 발생을 억제할 수 있는 지를 해석해 봄으로써 공진기 구조 마이크로 스트립 안테나의 유용성을 확인해 보았다. |
| 24. | Jung-Ick Moon; Seong-Ook Park; Ke-Young Park Broadband sleeve monopole type antenna for dual-band PCS/IMT-2000 Journal Article Electronics Letters, 36 , pp. 1829 - 1830, 2000. Abstract | Links | BibTeX | 태그: International @article{Moon2000b, title = {Broadband sleeve monopole type antenna for dual-band PCS/IMT-2000}, author = {Jung-Ick Moon and Seong-Ook Park and Ke-Young Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/00888413.pdf}, doi = {10.1049/el:20001303}, year = {2000}, date = {2000-10-26}, journal = {Electronics Letters}, volume = {36}, pages = {1829 - 1830}, abstract = {A modified sleeve monopole type antenna that features a novel broadband technique is demonstrated experimentally and numerically. A bandwidth of 24.2%1 (|S/sub 11/|<-20 dB) can be achieved, and an omnidirectional radiation pattern is obtained. The electrical characteristics of the proposed antenna make it attractive for use in mobile handset and repeater applications.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } A modified sleeve monopole type antenna that features a novel broadband technique is demonstrated experimentally and numerically. A bandwidth of 24.2%1 (|S/sub 11/|<-20 dB) can be achieved, and an omnidirectional radiation pattern is obtained. The electrical characteristics of the proposed antenna make it attractive for use in mobile handset and repeater applications. |
| 23. | Jung-Ick Moon; Seong-Ook Park PCS 및 IMT-2000 이중대역용 광대역 세라믹 유전체 안테나 설계 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 11 (6), pp. 996 - 1006, 2000. Abstract | Links | BibTeX | 태그: Domestic @article{Moon2000c, title = {PCS 및 IMT-2000 이중대역용 광대역 세라믹 유전체 안테나 설계}, author = {Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/JJPHCH_2000_v11n6_996.pdf}, year = {2000}, date = {2000-09-01}, journal = {Journal of Korean Institute of Electromagnetic Engineering and Science}, volume = {11}, number = {6}, pages = {996 - 1006}, abstract = {본 논문에서는 저유전체의 한 면에 고유전체를 부착하는 기존의 광대역 기법을 개선하여 새로운 광대역 세라믹 유전체 안테나를 제시하였다. 제안한 광대역 기법을 사용하여 광대역 안테나를 설계할 수 있었으며 대역폭의 감소문제를 줄일 수 있었다. 본 논문에서 제안한 세라믹 유전체 안테나의 경우 10dB 반사손실에서 대역폭을 33.9%까지 증가시켰으며 세라믹 유전체 안테나의 특성은 실험치와 유한요소법을 사용한 해석치가 잘 일치함으로써 확일할 수 있엇다. 제안한 세라믹 유전체 모델을 사용하여 PCS 및 IMT-2000 이중대역에서 사용이 가능한 광대역 안테나를 설계, 제작하였다.}, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } 본 논문에서는 저유전체의 한 면에 고유전체를 부착하는 기존의 광대역 기법을 개선하여 새로운 광대역 세라믹 유전체 안테나를 제시하였다. 제안한 광대역 기법을 사용하여 광대역 안테나를 설계할 수 있었으며 대역폭의 감소문제를 줄일 수 있었다. 본 논문에서 제안한 세라믹 유전체 안테나의 경우 10dB 반사손실에서 대역폭을 33.9%까지 증가시켰으며 세라믹 유전체 안테나의 특성은 실험치와 유한요소법을 사용한 해석치가 잘 일치함으로써 확일할 수 있엇다. 제안한 세라믹 유전체 모델을 사용하여 PCS 및 IMT-2000 이중대역에서 사용이 가능한 광대역 안테나를 설계, 제작하였다. |
| 22. | Dong-Hyuk Choi; Kyoung-Bin Park; Seong-Ook Park 정확한 급전 구조를 고려한 레이돔 원형 패치 안테나 해석 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 11 (6), pp. 859 - 867, 2000. Abstract | Links | BibTeX | 태그: Domestic @article{Choi2000, title = {정확한 급전 구조를 고려한 레이돔 원형 패치 안테나 해석}, author = {Dong-Hyuk Choi and Kyoung-Bin Park and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/JJPHCH_2000_v11n6_859.pdf}, year = {2000}, date = {2000-09-01}, journal = {Journal of Korean Institute of Electromagnetic Engineering and Science}, volume = {11}, number = {6}, pages = {859 - 867}, abstract = {본 논문에서는 프로브로 급전되는 단일 원형 마이크로스트립 안테나 위에 게이돔과 같은 또 다른 유전체가 씌어져 있는 구조에 대해서 모멘트 법을 이용하여 해석을 하였다. 급전 구조의 정확한 해석을 위하여 어태치먼트 모드를 이용하여 패치와 급전겅에서의 전류의 연속성을 보장해 줌으로써, 급전점에서 급격히 변하는 전류성분들을 표현할 수 있었다. 해석된 결과는 실험을 통하여 검증되었고, 서로 잘 일치하고 있음을 확인할수 있었다.}, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } 본 논문에서는 프로브로 급전되는 단일 원형 마이크로스트립 안테나 위에 게이돔과 같은 또 다른 유전체가 씌어져 있는 구조에 대해서 모멘트 법을 이용하여 해석을 하였다. 급전 구조의 정확한 해석을 위하여 어태치먼트 모드를 이용하여 패치와 급전겅에서의 전류의 연속성을 보장해 줌으로써, 급전점에서 급격히 변하는 전류성분들을 표현할 수 있었다. 해석된 결과는 실험을 통하여 검증되었고, 서로 잘 일치하고 있음을 확인할수 있었다. |
| 21. | Jung-Ick Moon; Seong-Ook Park Dielectric resonator antenna for dual-band PCS/IMT-2000 Journal Article Electronics Letters, 36 , pp. 1002 - 1003, 2000. Abstract | Links | BibTeX | 태그: International @article{Moon2000, title = {Dielectric resonator antenna for dual-band PCS/IMT-2000}, author = {Jung-Ick Moon and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/00852162.pdf}, doi = {10.1049/el:20000733}, year = {2000}, date = {2000-06-08}, journal = {Electronics Letters}, volume = {36}, pages = {1002 - 1003}, abstract = {A novel broadband and small dielectric resonator antenna has been investigated experimentally and numerically. A bandwidth of 25% has been achieved, and an omni-directional radiation pattern obtained. These features make such antennas highly suitable for application to mobile handsets.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } A novel broadband and small dielectric resonator antenna has been investigated experimentally and numerically. A bandwidth of 25% has been achieved, and an omni-directional radiation pattern obtained. These features make such antennas highly suitable for application to mobile handsets. |
| 20. | Jung-Ick Moon; Byoung-Nam Kim; Seong-Ook Park 유한요소법을 사용한 직육면체 세라믹 유전체 안테나의 특성 해석 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 11 (2), pp. 217 - 227, 2000. Abstract | Links | BibTeX | 태그: Domestic @article{Moon2000d, title = {유한요소법을 사용한 직육면체 세라믹 유전체 안테나의 특성 해석}, author = {Jung-Ick Moon and Byoung-Nam Kim and Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/JJPHCH_2000_v11n2_217.pdf}, year = {2000}, date = {2000-02-01}, journal = {Journal of Korean Institute of Electromagnetic Engineering and Science}, volume = {11}, number = {2}, pages = {217 - 227}, abstract = {본 논문에서는 유한요소법(FEM. Finite Element Method)을 적용하여 coaxial feeding 구조를 가진 접지면 위에 부착된 직육면체형 세라믹 유전체 안테나를 해석하였다. 제안된 프로그램의 타당성을 검증하기 위하여 시제품을 제작하여 안테나 특성의 설험 값과 본 프로그램의 해석치를 비교하였으며 잘 일치함을 확인할 수 있었다. 이로써 본 유한요소 프로그램을 검증할 수 있었고, coaxial feeding 구조를 가진 접지면 위에 부착된 임의의 3차원 안테나 구조불 해석에도 확장이 가능함을 알 수 있었다.}, keywords = {Domestic}, pubstate = {published}, tppubtype = {article} } 본 논문에서는 유한요소법(FEM. Finite Element Method)을 적용하여 coaxial feeding 구조를 가진 접지면 위에 부착된 직육면체형 세라믹 유전체 안테나를 해석하였다. 제안된 프로그램의 타당성을 검증하기 위하여 시제품을 제작하여 안테나 특성의 설험 값과 본 프로그램의 해석치를 비교하였으며 잘 일치함을 확인할 수 있었다. 이로써 본 유한요소 프로그램을 검증할 수 있었고, coaxial feeding 구조를 가진 접지면 위에 부착된 임의의 3차원 안테나 구조불 해석에도 확장이 가능함을 알 수 있었다. |
| 19. | Seong-Ook Park An Efficient Integral Transform Technique of a Singular Wire Antenna Kernel Journal Article Journal of Electromagnetic Waves and Applications , 14 , pp. 1105 - 1113, 2000. Abstract | Links | BibTeX | 태그: International @article{Park2000, title = {An Efficient Integral Transform Technique of a Singular Wire Antenna Kernel}, author = {Seong-Ook Park}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/so2312.pdf}, doi = {10.1163/156939300X01012}, year = {2000}, date = {2000-01-01}, journal = {Journal of Electromagnetic Waves and Applications }, volume = {14}, pages = {1105 - 1113}, abstract = {This paper presents an efficient integral transform technique for evaluating the singular part of the scalar and vector potentials due to a uniform current subdipole. By performing several transformations, the original double integral 1/-Rs with a singular kernal can be represented as a finite one-dimensional integral whose integrand possesses an analytically integrable logarithmic singularity. The results of the newly driven integral are compared with those using other available numerical methods and checked the validity of the proposed method.}, keywords = {International}, pubstate = {published}, tppubtype = {article} } This paper presents an efficient integral transform technique for evaluating the singular part of the scalar and vector potentials due to a uniform current subdipole. By performing several transformations, the original double integral 1/-Rs with a singular kernal can be represented as a finite one-dimensional integral whose integrand possesses an analytically integrable logarithmic singularity. The results of the newly driven integral are compared with those using other available numerical methods and checked the validity of the proposed method. |
| 18. | Seong-Ook Park; C.A. Balanis Closed-Form Asymptotic Extraction Techniques in Method of Moments Book Springer, 2000. @book{Park2000b, title = {Closed-Form Asymptotic Extraction Techniques in Method of Moments}, author = {Seong-Ook Park and C.A. Balanis}, editor = {Nikolaos K. Uzunoglu and Konstantina S. Nikita and Dimitra I. Kaklamani}, url = {http://143.248.148.42/wordpress/wp-content/uploads/2018/10/Park-Balanis2000_Chapter_Closed-FormAsymptoticExtractio.pdf}, doi = {10.1007/978-3-642-59629-2}, year = {2000}, date = {2000-01-01}, journal = {Applied Computational Electromagnetics: State of the Art and Future Trends}, pages = {124 - 130}, publisher = {Springer}, keywords = {etc}, pubstate = {published}, tppubtype = {book} } |
Publications
2005 |
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| 67. | An internal dual‐band printed antenna for CDMA/PCS handsets Journal Article Microwave and Optical Technology Letters, 45 , pp. 537 - 540, 2005. |
| 66. | Active integrated antenna using a T‐shaped microstrip coupled‐patch antenna Journal Article Microwave and Optical Technology Letters, 44 , pp. 434 - 436, 2005. |
2004 |
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| 65. | Printed compact dual band antenna for 2.4 and 5 GHz ISM band applications Journal Article Electronics Letters, 40 , pp. 1568 - 1569, 2004. |
| 64. | Optoelectronic and microwave characteristics of silver coated indium bumps for low temperature flip-chip applications Journal Article Electronics Letters, 40 , 2004. |
| 63. | Measurement of the modulated scattering microwave fields using dual-phase lock-in amplifier Journal Article IEEE Antennas and Wireless Propagation Letters, 3 , pp. 340 - 343, 2004. |
| 62. | Compact PIFA for 2.4/5 GHz dual ISM-band applications Journal Article Electronics Letters, 40 , 2004. |
| 61. | IEEE Antennas and Propagation Society Symposium, U.S., 2004, ISBN: 0-7803-8302-8. |
| 60. | Broadband internal antenna of planar monopole type for mobile handsets Conference IEEE Antennas and Propagation Society Symposium, U.S., 2004, ISBN: 0-7803-8302-8. |
| 59. | Electromagnetic field over the spherical Earth coated with N-layered dielectric Journal Article Radio Science, 39 , pp. 1 - 10, 2004. |
| 58. | GSM/DCS/IMT-2000 triple-band built-in antenna for wireless terminals Journal Article IEEE Antennas and Wireless Propagation Letters, 3 , pp. 104 - 107, 2004. |
| 57. | FDTD analysis of bow-tie antenna by incorporating approximated static field solutions Journal Article IEEE Antennas and Wireless Propagation Letters, 3 , pp. 176 - 179, 2004. |
| 56. | Accurate FDTD Analysis of Bow-tie Antenna Journal Article Journal of the Korean Institute of Electromagnetic and Science, 4 (1), pp. 13 - 16, 2004. |
| 55. | Novel Wideband Internal chip Antenna for PCS/IMT-2000 Dual-Band Applications Journal Article Microwave and Optical Technology Letters, 40 (4), 2004. |
| 54. | A wideband monopole antenna for PCS/IMT-2000/Bluetooth applications Journal Article IEEE Antennas and Wireless Propagation Letters, 3 , pp. 45 - 47, 2004. |
| 53. | Electromagnetic field in the presence of a three-layered spherical region Journal Article Progress In Electromagnetics Research, 45 , pp. 103 - 121, 2004. |
2003 |
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| 52. | Mutual coupling effects between transmit and receive antennas mounted on rectangular structure using FDTD algorithm Journal Article Microwave and Optical Technology Letters, 40 , pp. 265 - 268, 2003. |
| 51. | Small Internal Ceramic Chip Antenna for IMT-2000 Handsets Journal Article Electronics Letters, 39 , pp. 1364 - 1365, 2003, ISSN: 0013-5194. |
| 50. | An internal triple-band planar inverted-F antenna Journal Article IEEE Antennas and Wireless Propagation Letters, 2 , pp. 341 - 344, 2003. |
| 49. | The Design of Small Size Chip Antenna for 2.4/5.8 dual ISM-band applications Conference 2003 33rd European Microwave Conference, Germany, 2003. |
| 48. | Journal of Electromagnetic Waves and Applications, 17 , pp. 1399 - 1417, 2003. |
| 47. | Small chip antenna for 2.4/5.8-GHz dual ISM-band applications Journal Article IEEE Antennas and Wireless Propagation Letters, 2 , pp. 313 - 315, 2003. |
| 46. | The design of small size chip ceramic dielectric antenna for Bluetooth application Conference IEEE Antennas and Propagation Society International Symposium, U.S., 2003. |
| 45. | IEEE Antennas and Propagation Society International Symposium, U.S., 2003. |
| 44. | Broadband Microstrip Patch Antenna with Rhombic Slot Conference IEEE Antennas and Propagation Society International Symposium, U.S., 2003. |
| 43. | Small Chip Dielectric Antenna for Bluetooth Application Journal Article Microwave and Optical Technology Letter, 39 , pp. 366 - 368, 2003. |
| 42. | Noninvasive Life Signal Detecting Systems and Their Analyses Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 3 (1), pp. 45 - 49, 2003. |
2002 |
|
| 41. | Radiation Patterns of the Antenna Mounted on Complex Structure Using FDTD Algorithm Conference International Symposium on Antennas and Propagation, Japan, 2002. |
| 40. | International Symposium on Antennas and Propagation, Japan, 2002. |
| 39. | The meander line antenna for bluetooth Journal Article Microwave and Optical Technology Letters, 34 , pp. 149 - 151, 2002. |
| 38. | A Novel Small Size and Wide-Band Internal Chip Antenna for IMT-2000 Conference IEEE Antennas and Propagation Society International Symposium, U.S., 2002, ISBN: 0-7803-7330-8. |
| 37. | 2002 3rd International Symposium on Electromagnetic Compatibility, China, 2002, ISBN: 0-7803-7277-8. |
| 36. | Bow‐tie wide‐band monopole antenna with the novel impedance‐matching technique Journal Article Microwave and Optical Technology Letters, 33 , pp. 448 - 452, 2002. |
2001 |
|
| 35. | Analytical Asymptotic Extraction Technique for the Analysis of Bend Discontinuity Journal Article Progress In Electromagnetics Research, 33 , pp. 219 - 235, 2001. |
| 34. | Dyadic Green's Function for an Unbounded Anisotropic Medium in Cylindrical Coordinates Journal Article Journal of Electromagnetic Waves and Applications, 15 , pp. 1667 - 1668, 2001. |
| 33. | 변형된 적층구조를 갖는 단일급전방식의 광대역 평판형 배열안테나 연구 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 12 (6), pp. 919 - 930, 2001. |
| 32. | 광대역 기판 인쇄형 모노폴 안테나 설계 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 12 (6), pp. 958 - 964, 2001. |
| 31. | 소형 고이득 Bluetooth용 칩형 유전체 안테나 설계 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 12 (6), pp. 983 - 993, 2001. |
| 30. | A novel small size and high gain antenna for 2.45GHz band application Conference IEEE Antennas and Propagation Society International Symposium, U.S., 2001. |
| 29. | Low-cost design of stacked microstrip array antenna for DBS application Conference IEEE Antennas and Propagation Society International Symposium, U.S., 2001. |
| 28. | 어태치먼트 모드를 적용한 레이돔 원형 마이크로스트립 안테나 이득 해석 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 12 (4), pp. 532 - 541, 2001. |
| 27. | Dyadic Green's Function for an Unbounded Anisotropic Medium in Cylindrical Coordinates Journal Article Journal of The Korea Electromagnetic Engineering Society, 1 (1), pp. 54 - 59, 2001. |
2000 |
|
| 26. | 삼각형 격자 구조를 가지는 Cavity-backed 원형 마이크로스트립 배열 안테나 해석에 관한 연구 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 11 (8), pp. 1337 - 1345, 2000. |
| 25. | 원형 공진기 구조 미이크로스트립 안테나 해석 및 구현 방법 연구 Journal Article Journal of the Institute of Electronics Engineers of Korea, 37 (12), pp. 1 - 8, 2000. |
| 24. | Broadband sleeve monopole type antenna for dual-band PCS/IMT-2000 Journal Article Electronics Letters, 36 , pp. 1829 - 1830, 2000. |
| 23. | PCS 및 IMT-2000 이중대역용 광대역 세라믹 유전체 안테나 설계 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 11 (6), pp. 996 - 1006, 2000. |
| 22. | 정확한 급전 구조를 고려한 레이돔 원형 패치 안테나 해석 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 11 (6), pp. 859 - 867, 2000. |
| 21. | Dielectric resonator antenna for dual-band PCS/IMT-2000 Journal Article Electronics Letters, 36 , pp. 1002 - 1003, 2000. |
| 20. | 유한요소법을 사용한 직육면체 세라믹 유전체 안테나의 특성 해석 Journal Article Journal of Korean Institute of Electromagnetic Engineering and Science, 11 (2), pp. 217 - 227, 2000. |
| 19. | An Efficient Integral Transform Technique of a Singular Wire Antenna Kernel Journal Article Journal of Electromagnetic Waves and Applications , 14 , pp. 1105 - 1113, 2000. |
| 18. | Closed-Form Asymptotic Extraction Techniques in Method of Moments Book Springer, 2000. |