Embedded Files
Journal Papers
International
Bilal Ahmad, Yash H. Shah, Abdul Hadee, S. Bhattacharjee, and Choon Sik Cho. “PSLL and HPBW Minimisation in Time-Variant FDA Using Sum-of-Sinc-Functions-Based Frequency Offsets.” IET Microwaves, Antennas & Propagation: e70049, (2025). PDF
A. Bilal, Y. H. Shah, A. Hadee, S. Bhattacharjee and Choon Sik Cho, "A Bayesian-Genetic Hybrid Method for Frequency Diverse Array Transmit Beampattern Optimization," in IEEE Sensors Journal, vol. 25, no. 12, pp. 21878-21887, 15 June15, (2025). PDF
S. Bhattacharjee, Jeeln Choi; Seung-Jun Park; Kyu-Ho Shim; Chaewon Baek; Hae-Been Han, Bilal, A., Hadee, A., Shah, Y. H. and Choon Sik Cho et al., "In Vitro Treatment of Alzheimer’s Disease by Disintegrating Amyloid-β Using Electromagnetic Waves," in IEEE Transactions on Antennas and Propagation, vol. 73, no. 9, pp. 6788-6799, Sept. (2025). PDF
Bilal, A., Hadee, A., Shah, Y. H.,S. Bhattacharjee, & Choon Sik Cho. "A Multi-Aperture Technique for Longitudinal Miniaturization of UWB 3 dB Dual-Layer SIW Coupler". Sensors,(11), 3376. (2024). PDF
Hyun-Yeop Lee, Eun-Ho Song, Yun-Seong Eo, Choon Sik Cho, Young-Jin Kim, "500 MS/s 4-Bit Flash ADC with Complementary Architecture ," JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE, vol. 24, no. 1, pp. 98 - 107, Jan. 2024. PDF
Sohom Bhattacharjee, Choon Sik Cho, and Dong Sik Cho. "Development of Overlapped designed coils for Transcranial Magnetic Stimulations," IEEE Magnetics Letters, vol. 14, pp. 3100405, Jul. 2023. PDF
Jin Seung Choung, Sohom Bhattacharjee, Jeong Pyo Son, Jong Moon Kim, Dong Sik Cho, Choon Sik Cho, and MinYoung Kim. "Development and application of rTMS device to murine model," Scientific Reports, 13(1), 5490, 2023. PDF
Ahmad Bilal & Choon Sik Cho, "Localization of Dielectric Anomalies with Multi-Monostatic S11 Using 2D MUSIC Algorithm with Spatial Smoothing," Sensors, 22(14), 5293, Jul. 2022. PDF
Jin-Seop Lee, Hyun-Yeop Lee, Choon-Sik Cho, Young-Jin Kim, "SAR ADC for a Multimode Radar Transceiver with Offset Calibration," JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE, Vol. 22, No. 4, pp. Jul. 2022. PDF
Hyun-Yeop Lee, Jin-Seop Lee, Chang-Kyun Noh, Ho-Jin Kang, Seong-Tae Kim, Ho-Seon Baek, Young-Jin Kim, Choon-Sik Cho, "Low-Power Switching Scheme with Quarter Reference Voltage Sources for SAR ADCs," JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE, Vol. 22, No. 2, pp. 129~137, Mar. 2022. PDF
Lee Jin Seop, Jae Kwon Ha, Kang Ho Jin, Chang Kyun Noh, Young Jin Kim & Choon Sik Cho. Multi-Mode Radar RF Front-end Design. Journal of Integrated Circuits and Systems, 7(2), 2021.
Jae Kwon Ha, Chang Kyun Noh, Lee Jin Seop, Kang Ho Jin, Yu Min Kim, Tae Hyun Kim, Ha Neul Jung, Sang Hwan Lee, Choon Sik Cho & Young Jin Kim. RF Transceiver for the Multi-Mode Radar Applications. Sensors, 21(5), 1563, Mar. 2021.
Young Jin Kim, Young Jin Kim, Joon Hwan Han, Jung Ho Shin & Choon Sik Cho, "Newly Proposed Duty-generator-less Passive Down-conversion Mixer," JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE, 19(4), 426-433, 2019.
Yeong Soek Choi, Choon Sik Cho and Young-Jin Kim, "PLL-based electrical balance CMOS integrated duplexer with hybridtransformer," Analog Integrated Circuits and Signal Processing, Vol. 99, No. 3, pp.669-677, Jun. 2019.
Choon Sik Cho and Junghee Han, "Phase Error Reduction for Multi-frequency Fringe Projection Profilometry Using Adaptive Compensation," Current Optics and Photonics, Vol. 2, No. 4, pp. 332-339, Aug. 2018.
Yeong Soek Choi, Ho Jeong Jin, Choon Sik Cho, Young-Jin Kim, "Active balun using resistive feedback for low gain imbalance," Microwave and Optical Technology Letters, Vol. 60, No. 3, pp. 609-614, Mar. 2018.
Ho Jeong Jin, Choon Sik Cho and Young-Jin Kim,"Zigbee Transmitter using a Low-power High-gain Up-conversion Mixer," Journal of Semiconductor Technology and Science, Vol. 17, No. 5, pp. 660-665, Oct. 2017.
Byeong Wan Ha, Chang Won Seo, Choon Sik Cho and Young-Jin Kim," Wideband high-isolation SPDT RF switch in 0.18-μm SiGe BiCMOS technology," Analog Integrated Circuits and Signal Processing, Vol. 87, No. 1,pp.11-19, Apr. 2016.
Ji An Park, Ho Jeong Jin, and Choon Sik Cho," Current-Steered Active Balun with Phase Correction," Journal of Semiconductor Technology and Science, Vol. 15, No. 6, pp. 629-633, Dec. 2015.
In Hwan Jeong,Jae W.Lee,Choon Sik Cho, Young S.Lee and Jong-Hwa Kwon " An Averaged Estimation of Field Strength into an Enclosed Large Cavity with PCB Board," Microwave and Optical Technology Letters, Vol. 57, No. 9, pp. 2029-2031, Sep. 2015.
Jeong Hun Lee, Ji An Park, Choon Sik Cho, and Jae. W. Lee,"New Design Formulas for Asymmetric Coupled-Section Marchand Balun," IEEE Microwave and Wireless Components Letters, Vol. 25, No. 7, pp. 448-450, Jul. 2015.
Yoon Jae Bae, Choon Sik Cho, and Young-Jin Kim, "A CMOS UWB OOK Pulse Generator with Multiple Pulses Per Bit," Microwave and Optical Technology Letters, Vol. 57, No.5, pp. 1177–1179, May, 2015.
Yoon Jae Bae, Byeong Wan Ha, Ji An Park, and Choon Sik Cho, "3-D Reconstruction of Human Face Using the Derivative Moiré Topography," Journal of the Optical Society of Korea, Vol. 18, No. 5, pp. 500-506, Oct. 2014.
Ji An Park and Choon Sik Cho, "Wideband LNA Using Series RLC Input Matching and Resistive Feedback," Microwave and Optical Technology Letters, Vol. 56, No.8, pp. 1953–1956, Aug. 2014.
Nam Hwi Jeong, Choon Sik Cho and Seungwook Min, "Highly Linear Wideband LNA Design Using Inductive Shunt Feedback," Journal of Semiconductor Technology and Science, Vol. 14, No.1 pp. 100-108, Feb. 2014.
Yeon Jung Seong, Choon Sik Cho and Jae W. Lee “Digital pre-distortion architecture for RF power amplifier based on affine projection algorithm," Electronics Letters, Vol. 48, No.15, pp. 947–948, Jul. 2012.
Dong-Yeon Kim, Jae W. Lee, Choon Sik Cho, Haeng S. Lee , and Yeon-Choon Chung, “Indirect evaluation of radiated emissions from a bent signal line on a printed circuit board with two attached cables," Microwave and Optical Technology Letters, Vol. 53, No.8, pp. 1832–1837, Aug. 2011.
Dong-Yeon Kim, Jae W. Lee, T. K. Lee, and Choon Sik Cho, “Design of SIW Cavity-Backed Circular-Polarized Antennas Using Two Different Feeding Transitions," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 4, pp. 1398 – 1403, Apr. 2011.
Choon Sik Cho and Jae W. Lee, “Linearity Enhanced Doherty Power Amplifier Using Analog Predistortion," Microwave and Optical Technology Letters, Vol. 53, No.2, pp. 403 – 404, Feb. 2011.
Eun-young Jung, Jae W. Lee, and Choon Sik Cho, “Signal Distortion Analysis of L-Shaped UWB Antenna," IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, Vol. 9, pp. 775 – 778, 2010.
Woosung Lee, Jaeheung Kim, Choon Sik Cho, and Young Joong Yoon, “Beamforming Lens Antenna on a High Resistivity Silicon Wafer for 60 GHz WPAN," IEEE Transactions on Antennas and Propagation, Vol. 58, No. 3, pp. 706 – 713, Mar. 2010.
Seung Yoon Yang, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, “A novel dual-band balun using branch-lines with open stubs," Microwave and Optical Technology Letters, Vol. 52, No. 3, pp. 642 – 644, Mar. 2010.
Hyo Rim Bae, Soon Won So, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "A Crooked U-Slot Dual-Band Antenna With Radial Stub Feeding," IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, Vol. 8, pp. 1345 - 1348, 2009.
Sung-hwan Ahn, Jae W. Lee, Choon Sik Cho and Taek. K. Lee, "A Dual-Band Unequal Wilkinson Power Divider With Arbitrary Frequency Ratios," IEEE Microwave and Wireless Components Letters, Vol.19, No.12, pp. 783 - 784, Dec. 2009.
D. Kim, Jae W. Lee, Choon Sic Cho and Tael. K. Lee, "X-band circular ring-slot antenna embedded in single-layered SIW for circular polarisation," IEE Electronics Letters, Vol. 45, No. 13, pp. 668 - 669, Jun. 2009.
K. K. Kang, Jae W. Lee, Choon Sik Cho and Taek. K. Lee, “Compact Six-Band Internal Antenna with Stacked Periodic-Grooved Planes," Microwave and Optical Technology Letters, Vol. 50, No. 10, pp. 2718 – 2722, Oct. 2008.
Choon Sik Cho, Jae W. Lee and Jaeheung Kim, Comments on “The Design of Coupled Resonator Bandpass Filter With Wide Stop-Band," IEEE Microwave and Wireless Components Letters, Vol.18, No.9, p. 650, Sept. 2008.
Seung Hun Ji, Sang Ki Eun, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, “Linearity Improved Doherty Power Amplifier Using Composite Right/Left-Handed Transmission Lines," IEEE Microwave and Wireless Components Letters, Vol.18, No.8, pp. 533- 535, Aug. 2008.
Dong-Yeon Kim, Jae W. Lee, Choon Sik Cho, and Taek K. Lee, “Design of a Compact Tri-Band PIFA Based on Independent Control of the Resonant Frequencies”, IEEE Transactions on Antennas and Propagation, vol. 56, no. 5, pp. 1428 – 1436, May 2008.
Jaehyung Kim, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, “Linearity improvement of class-E Doherty amplifier using gm3 cancellation”, IEE Electronics Letters, Vol. 44, No. 5, pp. 359-360, Feb. 2008.
Kyung K. Kang, Jae W. Lee, Choon Sik Cho and Taek K. Lee, "An Improved Impedance Bandwidth of Modified UWB Antenna with Stair-cased Parasitic Rings", IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, Vol. 6, pp. 521 - 524, 2007.
Seung Hun Ji, Choon Sik Cho, Jae W. Lee and Jaeheung Kim,"Concurrent Dual-Band Class-E Power Amplifier Using Composite Right/Left-Handed Transmission Lines", IEEE Transactions on Microwave Theory and Techniques , Vol.55, No. 6, pp. 1341-1347, Jun. 2007.
Jun-Sik Choi, Kyung K. Kang, Jae W. Lee, Choon Sik Cho, and Jaeheung Kim "A Performance Investigation of an Internal Quad-Band Antenna With Double-Spiral Structures", IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, Vol. 5, pp. 552 – 555, 2006.
Choon Sik Cho, Jae W. Lee and Jaeheung Kim, “Dual- and Triple-Mode Branch-Line Ring Resonators and Harmonic Suppressed Half-Ring Resonators”, IEEE Transactions on Microwave Theory and Techniques , Vol.54, No. 11, pp. 3968- 3974 , Nov. 2006.
Jaeheung Kim, Choon Sik Cho and Jae W. Lee, “5.2GHz Notched Ultra Wideband Antenna Using a Slot-Type SRR”, IEE Electronics Letters, Vol. 42, No. 6, pp. 315-316, Mar. 2006.
Jaeheung Kim, Choon Sik Cho and Jae W. Lee, “CPW Band Stop Filter Using Slot-Type SRRs”, IEE Electronics Letters, Vol.15, No.12, pp. 910- 912, Dec. 2005.
Jaeheung Kim, Choon-Sik Cho and Frank S. Barnes, “Dielectric Slab Rotman Lens for Micro/Millimeter-wave Applications", IEEE Transaction on Microwave Theory and Techniques, Vol.53, No. 8, pp.2622-2627, Aug. 2005.
Jae W. Lee, Choon Sik Cho and Jaeheung Kim, “A New Vertical Half Disc-Loaded Ultra-Wideband Monopole Antenna (VHDMA) with a Horizontally Top-Loaded Small Disc”, IEEE Antennas and Wireless Propagation Letters, Vol.4, pp.198-201, 2005.
Jaeheung Kim, Choon-Sik Cho and Frank S. Barnes, “Dielectric Slab Rotman Lens”, IEEE Microwave and Wireless Components Letters, Vol.15, No.5, pp.348-350, May 2005.
Domestic
조춘식, "주파수 다양 배열 레이다," pp. 85~103, 한국전자파학회 논문지 제 35권 제 2호, 2024년 2월.
Bhattacharjee, Sohom, and Choon Sik Cho. "Novel Design of Hollow Coils for TMS to Minimize the Heat without Reducing Magnetic Field Intensity." The Journal of Korean Institute of Electromagnetic Engineering and Science 34.4 (2023): 317-325.
Jin Seop Lee, Hyun Yeop Lee, Choon Sik Cho & Young Jin Kim. (2022). SAR ADC for a Multimode Radar Transceiver with Offset Calibration. Journal of the Korean Institute of Electromagnetic and Science.
Hyun Yeop Lee, Jin Seop Lee, Chang Kyun Noh, Kang Ho Jin, Seong Tae Kim, Hoseon Baek, Kim Young Jin & Choon Sik Cho. (2022). Low-Power Switching Scheme with Quarter Reference Voltage Sources for SAR ADCs. Journal of Electromagnetic Engineering And Science, 22(2), 129-137.
Yu Min Kim & Choon Sik Cho. (2020). Substrate Integrated Waveguide Balun for Reducing Amplitude and Phase Imbalances. The Journal of Korean Institute of Electromagnetic Engineering and Science, 31(5), 421-425.
Choon Sik Cho. (2020). Brain Stroke Detection Based on Microwave Imaging. The Journal of Korean Institute of Electromagnetic Engineering and Science, 31(2), 85-103.
문성혁, 조춘식, 김영진, “저 자기장 조골세포 재형성 시스템용 RF 코일 설계,” pp. 821-827, 한국전자파학회 논문지 제 29권 제 11호, 2018년 11월.
백세영, 진호정, 서창원, 조춘식, “저전력 고이득 주파수 상향변환기를 이용한 Zigbee 송신기 설계,” pp. 825-833, 한국전자파학회 논문지 제 27권 제 9호, 2016년 9월.
진호정, 조춘식, “부트스트래핑과 능동 몸체 바이어싱을 이용한 13.56～915 MHz용 CMOS 정류기,” pp. 932-935, 한국전자파학회 논문지 제 26권 제 10호, 2015년 10월.
장문광, 조춘식, “시간-주파수 변환에 요동보상을 적용한 UWB 레이다 바이스테틱 ISAR 이미징” pp. 666-674, 한국전자파학회 논문지 제 26권 제 7호, 2015년 7월.
Byeong Wan Ha and Choon Sik Cho, “High-Isolation SPDT RF Switch Using Inductive Switching and Leakage Signal Cancellation,” Journal of Electromagnetic Engineering and Science, Vol. 14, No. 4, pp. 411-414, Dec. 2014.
Nam Hwi Jeong and Choon Sik Cho, “Enhanced Low-Dropout Regulator by Dynamic Current Biasing,” Journal of Electromagnetic Engineering and Science, Vol. 14, No. 4, pp. 376-381, Dec. 2014.
정인환, 이재욱, 이영승, 권종화, 조춘식 “ 확률론과 위상학적 모델링을 이용한 이중 공진구조 내의 PCB 주파수 응답해석,” pp. 919-929, 한국전자파학회 논문지 제 25권 제 9호, 2014년 9월.
Ji An Park, Choon Sik Cho, and Jae Wook Lee,“ A New Design Approach for Asymmetric Coupled-Section Marchand Balun,” Journal of Electromagnetic Engineering and Science, Vol. 14, No. 2, pp. 54-60, Jun. 2014.
박지안, 진호정, 조춘식, "진화된 위상보정 구조를 갖는 0.6～2.0 GHz 광대역 Active Balun 설계 ," pp. 289-295, 한국전자파학회 논문지 제 25권 제 3호, 2014년 3월.
Nam Hwi Jeong and Choon Sik Cho, "Slew-Rate Enhanced Low-Dropout Regulator by Dynamic Current Biasing ," Journal of Electromagnetic Engineering and Science, Vol. 14, No. 4, pp. 376-381, Dec. 2014.
정남휘, 조춘식, "Inductive Shunt 피드백을 이용한 고선형성 광대역 저잡음 증폭기," pp. 1055-1063, 한국전자파학회 논문지 제 24권 제 11호, 2013년 11월.
하병완, 조춘식, "비대칭 몸체 바이어싱 비교기를 사용하여 비교시간을 조절하는 무선 전력 전송용 정류기," pp. 1091-1097, 한국전자파학회 논문지 제 24권 제 11호, 2013년 11월.
박지안, 조춘식, "직렬 RLC 입력 정합 및 저항 궤환 회로를 이용한 6.2～9.7 ㎓ 광대역 저잡음 증폭기 설계," pp. 1098-1103, 한국전자파학회 논문지 제 24권 제 11호, 2013년 11월.
Moon Kwang Jang, Choon Sik Cho, "Target Detection for Marine Radars Using a Data Matrix Bank Filter", Journal of Electromagnetic Engineering and Science, vol. 13, no. 3, pp. 151-157, Sept. 2013.
한준용, 정인환, 이재욱, 조춘식, 박승근, 이영승, "전기적으로 큰 공진기의 시간효율적인 차단 효율 계산법," pp. 337-347, 한국전자파학회 논문지 제 24권 제 3호, 2013년 3월.
김민회, 조춘식, 이재욱, "2차 고조파 주입을 사용한 고 선형성의 자체 발진 혼합기", pp. 682 - 690, 한국전자파학회 논문지 제 23권 제 6호, 2012년 6월.
성연중, 조춘식, 이재욱, "Affine Projection 알고리즘에 기초하여 구현한 디지털 전치 왜곡을 이용한 RF 전력증폭기의 선형성 향상," pp. 484-490, 한국전저파학회 논문지 제 23권 제 4호, 2012년 4월.
성연중, 조춘식, 이재욱, “비선형 인덱싱 함수 Tanh로 구현한 디지털 전치 왜곡을 이용한 RF 전력증폭기의 선형성 향상”, pp. 430 – 439, 한국전자파학회 논문지 제22권 제4호, 2011년 4월.
김태환, 이성주, 이동휘, 홍윤석, 조춘식, “능동 위상 배열 레이더의 디지털 수신기 제작 및 측정”, pp. 721 – 729, 한국전자파학회 논문지 제20권 제8호, 2009년 8월.
서태윤, 이재욱, 조춘식, 이택경, “기판집적 도파관 기술을 이용한 위성통신용 4분기 전력분배기”, pp. 371 – 379, 한국전자파학회 논문지 제20권 제3호, 2009년 3월.
조춘식, “Meta-Material을 이용한 Active 회로의 설계”, pp. 48 – 58, 한국전자파학회지 [전자파기술] 제20권 제2호, 2009년 3월.
김태환, 최병관, 이희영, 조춘식, “ADC 특성에 따른 능동 위상 배열 레이더 수신기의 이득 설정 방법”, pp. 52 – 59, 한국전자파학회 논문지 제20권 제1호, 2009년 1월.
은상기, 조춘식, 이재욱, 김재흥, “Composite Right/Left-Handed Transmission Lines 결합기를 이용하여 선형성과 효율을 향상한 outphasing E급 전력 증폭기”, pp. 1313 – 1321, 한국전자파학회 논문지 제19권 제12호, 2008년 12월.
서태윤, 안성환, 이재욱, 조춘식, “Wiener-Hopf Technique와 Fourier Transform Analysis를 이용한 병렬 슬릿의 TE파 산란 해석”, pp. 968 – 977, 한국전자파학회 논문지 제19권 제9호, 2008년 9월.
박필성, 이재욱, 이택경, 조춘식, 김재흥, 최형도, “소형 및 변형된 접지면을 이용한 신호선 복사성 방사레벨의 감소 방법”, pp. 1189 – 1198, 한국전자파학회 논문지 제17권 제12호, 2006년 12월.
김태환, 이재욱, 조춘식, 이윤현, “자기 아파인 프랙탈 구조를 이용한 CPW 급전 크로스 안테나”, pp. 949-956, 한국전자파학회 논문지 제16권 제9호, 2005년 9월.
김재흥, 조춘식, 이재욱, “BPM을 이용한 안테나 배열의 집속 빔 전파해석”, pp. 465-471, 한국전자파학회 논문지 제16권 제5호, 2005년 5월.
김재흥, 조춘식, “유전판 로트맨 렌즈”, pp. 1108-1115, 한국전자파학회 논문지 제 15권 제 11호, 2004년 11월.
이재욱, 조춘식, 김종면, “수평 원형 디스크가 로딩된 반원 디스크 초광대역 모노풀 안테나”, pp. 1043-1050, 한국전자파학회 논문지 제 15권 제 11호, 2004년 11월.
Conference Papers
International
A. Bilal, Y. H. Shah, A. Hadee, S. Bhattacharjee and Choon Sik Cho, "Fast Wideband Wide-Angle RCS Minimization Using ISAR Imaging and Bayesian Optimization," 2024 IEEE Asia-Pacific Microwave Conference (APMC), Bali, Indonesia, (2024), pp. 1-3, doi: 10.1109/APMC60911.2024.10867659.
A. Bilal, A. Hadee, Y. H. Shah, S. Bhattacharjee and Choon Sik Cho, "RCS Minimization using Bayesian Optimization," 2024 54th European Microwave Conference (EuMC), Paris, France, (2024), pp. 740-743, doi: 10.23919/EuMC61614.2024.10732618.
S. Y. Hemant, A. Bilal, A. Hadee, S. Bhattacharjee and Choon Sik Cho, "A Doherty Amplifier with a Tunable Transformer for Load Modulation," 2024 Photonics & Electromagnetics Research Symposium (PIERS), Chengdu, China, (2024), pp. 1-3, doi: 10.1109/PIERS62282.2024.10618758.
A. Bilal, Y. H. Shah, S. Bhattacharjee and Choon Sik Cho, "Design of a Multilayer Longitudinally Compact UWB 3-dB Microwave Coupler using Multiple Apertures," 2023 IEEE International Radar Conference (RADAR), Sydney, Australia, (2023), pp. 1-6,
Kim, Y. M., Ha, K. H., Lee, J. S., Kang, H. J., Jung, I. H., & Cho, C. S. (2019, October). 60GHz Substrate Integrated Waveguide Balun. In 2019 IEEE Conference on Antenna Measurements & Applications (CAMA) (pp. 141-143).
Ha, K. H., Jung, I. H., Kang, H. J., Lee, J. S., Kim, Y. M., & Cho, C. S. (2019, October). Hybrid Supply Modulator for High Power RF PA with Non-Inverting Amplifier. In 2019 IEEE Conference on Antenna Measurements & Applications (CAMA) (pp. 1-3).
Byeong Wan Ha, Ji An Park, Ho Jeong Jin, and Choon Sik Cho, "Energy Transfer and Harvesting for RF-Bio Applications - Invited," IEEE International Microwave Workshop Series in Biomedical Applications, Dec. 2015.
Changwon Seo, Hanjin Cho, Seyoung Baik, Jinyong Kim, Ho Jeong Hin and Choon Sik Cho, "A Low Power RF CMOS Direct-Conversion Transmitter Using High Conversion Gain Front end for IEEE 802.15.4 Standard," International SoC Design Conference, pp. 21- 22, Oct. 2015.
Yoon Jae Bae and Choon Sik Cho, "Ultra-Wideband On-Off Keying Transmitter with Multi-Pulses/Bit for Bio-Signal Detectors," IEEE International Microwave Workshop Series in Biomedical Applications, Dec. 2014.
Nam Hwi Jung, Yoon Jae Bae, and Choon Sik Cho, "A Novel Rectifier for Wireless Power Transfer Using Multiplier Configuration," IEEE International Microwave Workshop Series in Biomedical Applications, Dec. 2013.
Byeong Wan Ha, Nam Hwi Jung and Choon Sik Cho, "Design of Rectifier with Comparator using Unbalanced Body Biasing for Wireless Power Transfer," International System on Chip Conference, Nov. 2013.
Yoon Jae Bae, Nam Hwi Jeong and Choon Sik Cho, "Design of VCO Using Bump Structure for High-Power Harmonics," IEEE Asia Pacific Microwave Conference, Nov. 2013.
Moon Kwang Jang and Choon Sik Cho, "Target Detection for UWB Radars Using the Standard Deviation", IEEE Asia Pacific Microwave Conference, Nov. 2013.
Duane C. Howard, Choon Sik Cho, and John D. Cressler, " A Broadband, Millimeter Wave, Asymmetrical Marchand Balun in 180 nm SiGe BiCMOS Technology ", IEEE RFIC Symposium, pp. 425-428, June 2012.
Moon Kwang Jang and Choon Sik Cho, " Control about Sea clutter level of marine RADAR ", IEEE Asia Pacific SAR Conference, pp. 1-4, Sept. 2011.
Hyo Rim Bae, Choon Sik Cho, and Jae W. Lee, “ Efficiency Enhanced Class-E Power Amplifier Using the Second Harmonic Injection at the Feedback Loop ”, IEEE European Microwave Conference, pp. 1042-1045, Sept. 2010.
Seung Yoon Yang, Choon Sik Cho and Jae W. Lee, “Sub-THz Printed Log-Periodic Dipole Array Antenna for Enhanced Bandwidth and High Gain”, IEEE European Microwave Conference, pp. 1349-1352, Sept. 2010.
Hyo Rim Bae, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, “ A 24GHz Dual-Gate Mixer Using Sub-Harmonic in 0.18μm CMOS Technology ”, IEEE Asia Pacific Microwave Conference, Dec. 2009.
Ji Hoon Jeong, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, “ A Novel K-Band Self-Oscillating Mixer Based on Push-Push Topology ”, IEEE Asia Pacific Microwave Conference, Dec. 2009.
Sun Young Kim, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, “ A Novel Feedback Low Phase Noise Ka-band Push-Push CMOS VCO ”, IEEE Asia Pacific Microwave Conference, Dec. 2009.
Sang-Ki Eun, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, “ A Low Power VCO Using Active Inductor for Low Phase Noise and Wide Tuning Range ”, IEEE European Microwave Conference, pp. 125-128, Sept. 2009.
Tae Yoon Seo, Jae W. Lee, Choon Sik Cho, and Taek K. Lee “ An Embedded Filtering Antenna Using Multiple Layers with Dielectric Lens ”, IEEE European Microwave Conference, pp. 751-754, Sept. 2009.
Tak Su Moon, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, “ A Novel Millimeter Wave Super Lens Using Split-Ring Resonator and Complementary Split-Ring Resonator ”, Proceedings of IRMMW-THz, Sept. 2009.
Soon One So, Sang-Ki Eun , Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, “A Dumbbell U-Slot Wide Band Antenna Using Radial Stub Feeding for Millimeter-Wave Application”, Proceedings of IRMMW-THz, Sept. 2009.
Seung Yoon Yang, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, “Design of Sub-THz Log-Periodic Antenna for High Input Impedance”, Proceedings of IRMMW-THz, Sept. 2009.
Cheong Won Ryu, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "A Low Power 45dB Dynamic-Range Variable Gain Mixer in 0.18μm CMOS", IEEE International Microwave Symposium, pp. 585 - 588, June 2009.
Woosung Lee, Jaeheung Kim, Choon Sik Cho, and Young Joong Yoon, " A 60 GHz Rotman Lens on a Silicon Wafer for System-on-a-Chip and System-in-Package Applications ", IEEE International Microwave Symposium, pp. 1189 - 1192, June 2009.
Sun Young Kim, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, “A Novel Feedback Phase Noise CMOS Voltage Controlled Oscillator”, Korea-Japan Microwave Conference, pp. 45 – 48, Apr. 2009.
Jin-Gul Lee, Choon Sik Cho, Jae W. Lee, Sang-Ki Eun, “A Novel Dual-Band Wilkinson Power Divider Using Branch-line ”, IEEE Asia Pacific Microwave Conference, Dec. 2008.
Tak Su Moon, Choon Sik Cho, Jae W. Lee, and Young Ho Jung, “ Adaptive Digital Predistortion for The Power Amplifiers Based on Look-up Table with Tanh as a Nonlinear Indexing Function ”, IEEE Asia Pacific Microwave Conference, Dec. 2008.
Daehan Kim, Choon Sik Cho, Jae W. Lee, Jaeheung Kim, “ A Dual Band Radial Stub Antenna with Tapered Radial Slot on Backside ”, IEEE Asia Pacific Microwave Conference, Dec. 2008.
Cheong Won Ryu, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, “ A Triple-Folded Frequency Push-Push Oscillator Using DGS Resonator and Composite Right/Left-Handed Transmission Lines ”, IEEE Asia Pacific Microwave Conference, Dec. 2008.
Dong-yeon Kim, Jae W. Lee, Choon Sik Cho, and Yeon-Choon Chung, “ Alternative Investigation of Common-Mode Radiated Emission from PCB with a Bent Signal Line and Attached Cables ”, IEEE Asia Pacific Microwave Conference, Dec. 2008.
Sang-Ki Eun, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, “ Linearity Enhancement for the RF Class-E Power Amplifiers Using Duty-Cycle Modulation at the Feed-Forward Path ”, IEEE European Microwave Conference, pp. 1675-1678, Oct. 2007.
Kyu Seok Hwang, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, “ High Quality-Factor and Inductance of Symmetric Differential-Pair Structure Active Inductor Using a Feedback Resistance Design ”, IEEE International Microwave Symposium, pp.1059 - 1062, June 2008.
Sung-Hwan Ahn, Jae W. Lee, Choon Sik Cho, and Taek K. Lee, “ A Wilkinson Power Divider with Different Power Ratios at Different Frequencies ”, IEEE Asia Pacific Microwave Conference, pp. 781 – 784, Dec. 2007.
Dong-Yeon Kim, Jae W. Lee, Choon Sik Cho, and Taek K. Lee, “ Time-Domain Signal Investigations of Notched VHDA for UWB Communications ”, IEEE Asia Pacific Microwave Conference, pp. 1201 – 1204, Dec. 2007.
Jinse Jung, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, “ An Ultra Wide Band pHEMT Low Noise Amplifier With Darlington Stage ”, International SOC Conference, pp. 568 – 570, Nov. 2007.
Sang-Ki Eun, Seung Hun Ji, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, " A High Linearity Chireix Outphasing Power Amplifier Using Composite Right/Left-Handed Transmission Lines ", IEEE European Microwave Conference, pp. 1622-1625, Oct. 2007.
Cheong Won Ryu, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, " New Balanced Self Oscillating Mixer Using DGS Resonator ", IEEE European Microwave Conference, pp. 648-651, Oct. 2007.
Woon-Gi Yeo, Tae-Yoon Seo, Jae W. Lee, and Choon Sik Cho, " H-Plane Sectoral Filtering Horn Antenna in PCB Substrates Using Via Fences at Millimetre-Wave ", IEEE European Microwave Conference, pp. 818-821, Oct. 2007.
Dong-Yeon Kim, Jae W. Lee, Choon Sik Cho, and Jaeheung Kim, " A Compact Tri-Band PIFA with Multiple-Folded Parasitic Elements ", IEEE International Microwave Symposium, pp.259-262, June 2007.
W. Lee, KK Kang, CS Cho, and J. Kim, " An Enhancement of Input Impedance Bandwidth of Circular-Disc Loaded Monopole Antenna with Horizontal and Vertical Parasitic Strips ", IEEE Asia Pacific Microwave Conference, Dec. 2006.
Jnse Jung, Duk-Jae Woo, Choon Sik Cho and Taek-Kyung Lee, “ Power Enhancement of Microwave Oscillator Using a High-Q Spiral-Shaped DGS Resonator ”, IEEE Asia Pacific Microwave Conference, Dec. 2006.
Sung Hwan Ahn, Jae W. Lee, Taek K. Lee and Choon Sik Cho, "Even-Odd Mode Analysis of Unequal Dual-Band Wilkinson Power Divider", Korea-Japan Joint Conference on AP/EMC/EMT, pp. 305 - 308, Sept., 2006.
Mi Jung Kim, Choon Sik Cho and Jaeheung Kim, " Miniaturized Antenna Using a Planar Mobius Strip Bisected Along the Circumferential Direction ", IEEE European Microwave Conference, pp. 827-830, Sept. 2006.
Seung Hoon Ji, Gyu Seok Hwang, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, " 836 MHz/1.95GHz Dual-Band Class-E Power Amplifier Using Composite Right/Left-Handed Transmission Lines ", IEEE European Microwave Conference, pp. 356-359, Sept., 2006.
Jinse Jung, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, " Low Phase Noise Microwave Oscillator Using Split Ring Resonators ", IEEE European Microwave Conference, pp. 95-98, Sept., 2006.
Koung G. Kang, Jae W. Lee, Choon Sik Cho, and Taek K. Lee, " A Dual-Band Planar Inverted-F Antenna with Periodic Grooves ", IEEE European Microwave Conference, pp. 1465-1468, Sept., 2006.
Pil Sung Park, Jae W. Lee, Taek K. Lee, Choon Sik Cho and Jaeheung Kim, " Reduction of Radiated Emission from Signal Traces Using Modified Small-Sized Ground Patterns ", IEEE Proceedings of International Symposium on Electromagnetic Compatibility, pp. 368 - 371, July 2006.
Choon Sik Cho, Jae W. Lee and Jaeheung Kim, “ Double Half-Ring Resonators for Bandpass Filter Applications with Suppression of Multiple Harmonics and Size Reduction ”, IEEE Asia Pacific Microwave Conference, Dec., 2005.
Jae W. Lee, Choon Sik Cho and Taek K. Lee, “A New Vertically Half Disc-Loaded UWB Filtering Antenna with Horizontally Top-Loaded Small Disc”, ISAP, Aug., 2005.
Tae Hwan Kim, Choon Sik Cho and Jae W. Lee, “Insert CPW-Fed UWB Antenna”, ISAP, Aug., 2005.
Jung Woo Ha, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, “A Ku-Band Class-E High Efficiency Frequency Tripler”, ISMOT, Aug., 2005.
Tae Hwan Kim, Jae W. Lee, and Choon Sik Cho, “ A CPW-Fed Self-affine Fractal Antenna ”, IEEE AP-S International Symposium, July, 2005.
Jung Woo Ha, Choon Sik Cho, and Jae W. Lee, “ A Triple-Band Antenna using CPW-Fed and Meander-line for PCS/IMT-2000/Bluetooth Applications ”, IEEE AP-S International Symposium, July, 2005.
Domestic
Hemant, Shah Yash, and Choon Sik Cho. "3.3 V 3-Stack Differential Power Amplifier at 24 GHz in 65 nm CMOS Process." 한국정보통신설비학회 학술대회 (2022): 10-10.
Bhattacharjee, Sohom, and Choon Sik Cho. "Hollow Coil designs for Transcranial Magnetic Simulation." 한국정보통신설비학회 학술대회 (2022): 25-25.
Bhattacharjee, Sohom, and Choon Sik Cho. "Noise Analysis and Minimization procedure of home based TMS appliance." 한국정보통신설비학회 학술대회 (2022): 27-28.
Bilal, Ahmad, and Choon Sik Cho. "Near-Field Frequency Diverse Array Radar for Medical Applications." 한국정보통신설비학회 학술대회 (2022): 24-24.
Bhattacharjee, Sohom, and Choon Sik Cho. "Dual-Wideband Microstrip patch antenna using single feeding structure for 5G application and 5GHz Wi-Fi." 한국정보통신설비학회 학술대회 (2021): 32-32.
진호정, 조춘식, "부트스트래핑과 능동몸체 바이어싱을 사용하여 문턱전압을 낮춘 무선전력전송 및 RFID 용 CMOS 정류기," 2014년도 한국전자파학회 종합학술발표회. (학부생 우수논문상)
배윤재, 이정훈, 이빛나라, 조춘식, "생체미세신호 전송을 위한 IR UWB 방식의 OOK 송신기 설계," 2014년도 RF/아날로그회로 워크샵.
정남휘, 조춘식, "dB-Linear VGA를 사용한 915 MHz 벡터-합 위상 천이기," 2014년도 한국전자파학회 하계종합학술발표회.
하병완, 조춘식, "선택적 인덕터와 신호상쇄 방식을 이용한 높은 격리도의 광대역 RF 스위치 설계," 2014년도 한국전자파학회 하계종합학술발표회. (우수논문상)
박지안, 조춘식, "능동 Feedback 회로를 이용한 UWB 대역 전류 재사용 저잡음 증폭기," 2014년도 한국전자파학회 하계종합학술발표회.
배윤재, 조춘식, "IR UWB 송신기용 OOK 방식 Pulse Generator," 2014년도 한국전자파학회 하계종합학술발표회.
배윤재, 박지안, 하병완, 조춘식, "3-D Reconstruction Using the Derivative Moiré Topography," pp. 212-213, 제21회 광전자 및 광통신 학술회의, 2014.
이정훈, 조춘식, "신호 간 타이밍 제어를 이용하여 Sampling 속도를 향상시킨 8-bit SAR ADC의 설계," 2014년 SoC 학술대회.
진호정, 조춘식, "무선전력전송을 위한 LDO Regulator," 2014년 SoC 학술대회.
하병완, 조춘식, "Design of 8 bit, 83 MS/s Multilevel SAR ADC for High Sampling Rate Using Multiple Comparators," 2013년도 한국전자파학회 종합학술발표회.
장문관, 조춘식, "UWB 레이더 스펙트럼 표준편차를 이용한 표적 탐지," 2013년도 한국전자파학회 종합학술발표회.
박지안, "진화된 위상 보정 구조를 갖는 0.6-3 GHz 광대역 Active Balun 설계," 2013년도 한국전자파학회 종합학술발표회.
장문광, 조춘식, "데이터 메트릭스 뱅크 필터를 이용한 클러터 제거 기술 연구", Vol. 35, No. 1, p. 156, 2012 춘계 마이크로파 및 전파전파 학술대회
예지영, 조춘식, "Wide gain range에서 dB-Linear한 CMOS Variable Gain Amplifier 설계", Vol. 35, No. 1, p. 21, 2012 춘계 마이크로파 및 전파전파 학술대회
정남휘, 조춘식, "무선 전력 전송을 위한 CMOS 능동 정류회로 설계", Vol. 35, No. 1, p. 24, 2012 춘계 마이크로파 및 전파전파 학술대회
김민회, 조춘식, “Colpitts 구조를 이용한 10GHz Cross-Coupled VCO”, Vol. 34, No. 1, p.39, 2011 춘계 마이크로파 및 전파전파 학술대회
예지영, 성연중, 김민회, 조춘식, “저 전력 디지털 보청기 시스템을 위한 아날로그 프런트 엔드 설계”, Vol. 26, No. 3, p.91-95, 2011 전기·전자·전자파·통신학회 제주지부 합동학술대회
정지훈, 조춘식, “Analog Predistortion을 이용하여 선형성을 향상시킨 Doherty Amplifier”, Vol. 32, No. 1, p.96, 2009 춘계 마이크로파 및 전파전파 학술대회
배효림, 조춘식, “Sub-harmonic을 이용한 Dual-gate FET Mixer”, Vol. 32, No. 1, p.98, 2009 춘계 마이크로파 및 전파전파 학술대회
황규석, 조춘식, “High Quality-Factor and Inductance of Symmetric Differential-Pair Structure Active Inductor Using Feedback Resistors”, Vol. 31, No.1, pp. 267 – 270, 2008 춘계 마이크로파 및 전파학술대회
김대한, 조춘식, 김재흥, “방사 동조 스터브를 이용한 이중 대역 마이크로 스트립 다이폴 안테나", Vol. 31, No.1, pp. 133-136, 2008 춘계 마이크로파 및 전파학술대회
이진걸, 조춘식, 이재욱, “DGS구조를 이용한 Schiffman Phase Shifter", Vol. 31, No.1, pp. 337-340, 2008 춘계 마이크로파 및 전파학술대회
김대한, 조춘식, 이재욱, 김재흥, “A Low Phase Noise CMOS Voltage Controlled Oscillator Using π-Model Resonator", Vol. 29, No.3, pp. 111-114, 2007 추계 마이크로파 및 전파학술대회
정진세, 조춘식, 이재욱, 김재흥, “Design of Concurrent Dual-Band LNA Using CRLH LC Network", Vol. 29, No.3, pp. 449-452, 2007 추계 마이크로파 및 전파학술대회
황규석, 조춘식, 이재욱, 김재흥, “Low-Power Folded Cascode CMOS Class-E Power Amplifier for 2.4 GHz Wireless Sensor Network", Vol. 29, No.3, pp. 459-462, 2007 추계 마이크로파 및 전파학술대회
김재형, 김상수, 조춘식, 이택경, “인덕턴스 값의 변화에 따른 저대역 통과 여파기의 잡음 지수 비교 분석”, Vol. 30, pp.385 – 388, 2007 춘계 마이크로파 및 전파전파 학술대회
지승훈, 조춘식, "Composite Right/Left-Handed Transmission Line을 이용한 Class-E 고효율 주파수 3체배기", Vol. 29, No.1, pp. 253 - 256, 2006 춘계 마이크로파 및 전파전파학술대회
황규석, 정진세, 조춘식, "SSRR-공진기를 이용한 Push-Push 발진기 설계", Vol. 29, No.1, pp. 257 - 260, 2006 춘계 마이크로파 및 전파전파학술대회
하정우, 이재욱, 조춘식, 이윤현, “CPW 급전과 meander-line을 이용한 Triple-Band 안테나”, Vol. 28, No.1, 2005 춘계 마이크로파 및 전파전파학술대회
김태환, 이재욱, 조춘식, 이윤현, “자기 아파인 프랙탈 안테나”, Vol. 28, No.1, 2005 춘계 마이크로파 및 전파전파학술대회
이재욱, 조춘식, 김종면, 이승식, “수평 디스크가 로딩된 반원 디스크 UWB 필터링 안테나”, Vol. 27, No.2, p. 407-410, 2004 추계 마이크로파 및 전파전파학술대회
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