News & publications

2025

[99] "A 6-bit CMOS Attenuator With Low Phase Variation Using a Bandpass Response Capacitive π-Bridge Network"

Min-Seok Baek, Byeong-Chan Lee, Jae-Hyeok Song, Joon-Hyung Kim, Jeong-Taek Lim, and Choul-Young Kim, IEEE Microwave and Wireless Technology Letters, 2025

[98] "W-Band Broadband CMOS LNA Using Partially Coupled Transformer and Large Transistor"

Jae-Hyeok Song, Han-Woong Choi, Jeong-Taek Lim, and Choul-Young Kim, IEEE Microwave and Wireless Technology Letters, 2025

2024

[97] "A Ku-Band Fully Differential Low-Power High-Input P1dB Low-Noise Amplifier"

Sang-Rok Lee, Joon-Hyung Kim, Min-Seok Baek, and Choul-Young Kim, Nanomaterials, 2024

[96] "Compact Dual-Core Drive Stage using Three-winding Transformer for CMOS Broadband Power Amplifier"

Joon-Hyung Kim, Jeong-Taek Son, Jae-Hyeok Song, Jae-Eun Lee, Min-Seok Baek, Jeong-Taek Lim, Han-Woong Choi, Seong-Mo Moon, Dongpil Chang, and Choul-Young Kim, IEEE Microwave and Wireless Technology Letters, 2024 (invited paper)

[95] "180° Switching-Method based on Transformer for CMOS Phase Shifter"

Joon-Hyung Kim, Han-Woong Choi, Min-Seok Baek, and Choul-Young Kim, IEEE Microwave and Wireless Technology Letters, 2024

[94] "A Sub-6 GHz Asymmetric GaAs SPDT Switch With High Tx to Rx Isolation and Low Insertion Loss"

Jae-Eun Lee, Jae-Hyeok Song, Min-Seok Baek, Jeong-Taek Son, Joon-Hyung Kim, Eun-Gyu Lee, Sunkyu Choi, and Choul-Young Kim, IEEE Microwave and Wireless Technology Letters,2024

[93] "Ultra-Low Noise Figure and Broadband CMOS LNA With Three-Winding Transformer and Large Transistor"

Joon-Hyung Kim, Jeong-Taek Son, Jeong-Taek Lim, Han-Woong Choi, and Choul-Young Kim, IEEE Transactions on Microwave Theory and Techniques, 2024

[92] "A Low-Power High-IP1dB Low-Noise Amplifier Using Large-Transistor and Class-AB Mode"

Min-Seok Baek, Han-Woong Choi, Joon-Hyung Kim, Jae-Hyeok Song, Jae-Eun Lee, Jeong-Taek Son and Choul-Young Kim, IEEE Microwave and Wireless Technology Letters, 2024

[91] "Low Insertion Loss CMOS Phase Shifter for Wireless Power Transfer System"

Jeong-Taek Lim, Jae-Hyeok Song, Joon-Hyung Kim, Min-Seok Baek, Changkun Park, and Choul-Young Kim, IEEE Microwave and Wireless Technology Letters, 2024

2023

[90] "A 37–40 GHz 6-Bits Switched-Filter Phase Shifter Using 150 nm GaN HEMT"

Jae-Hyeok Song, Eun-Gyu Lee, Jae-Eun Lee, Jeong-Taek Son, Joon-Hyung Kim, Min-Seok Baek, Choul-Young Kim, Nanomaterials, 2023 

[89] "Design Technique of K-Band CMOS Phase Shifter with LCL T-Type Low Pass Structure"

Seongjin Jang, Choul-Young Kim, Changkun Park, Electronics, 2023

[88] "200-mm Si CMOS Process-Compatible Integrated Passive Device Stack for Millimeter-Wave Monolithic 3-D Integration"

Minsik Park, Jonghyun Song, Jaeyong Jeong, Jeong-Taek Lim, Jae-Hyeok Song, Won-Chul Lee, Gapseop Sim, Huijae Cho, Dongeun Yoo, Minho Kang, Hyoungho Ko, Jooseok Lee, Kyounghoon Yang, Choul-Young Kim, Youngsu Kim, Woo-Suk Sul, Sanghyeon Kim, Jongwon Lee, IEEE Transactions on Electron Devices , 2023 

[87] "Highly Linear Ka-Band CMOS Linear Power Amplifier Using T-Shape Linearizer With pMOS" 

Han-Woong Choi, Sunkyu Choi, Jeong-Taek Lim, Choul-Young Kim, IEEE Microwave and Wireless Technology Letters, 2023

[86] "Ka-band CMOS x5 Frequency Multiplier with Current-reuse Technique"

Jeong-Taek Lim, Han-Woong Choi, Jae-Hyeok Song, Sunkyu Choi, Changkun Park, Choul-Young Kim, IEEE Microwave and Wireless Technology Letters, 2023 

[85] "An In-Band Full-Duplex Low Noise Amplifier Integrated with an Electrical Balance Duplexer without Explicit matching" 

Jeong-Taek Lim, Han-Woong Choi, Jae-Hyeok Song, Choul-Young Kim, IEEE Microwave and Wireless Technology Letters, 2023

[84] "28 GHz compact 4-way Wilkinson power divider/combiner using RCIN and Mutual Inductor in 0.13 μm CMOS Technology" 

Jae-Hyeok Song, Hyun-Myung Oh, Jeong-Taek Lim, Choul-Young Kim, IEEE Microwave and Optical Technology Letters, 2023

[83] "Compact size buck converter using small output capacitance with pole-tuning technique"

Jae-Eun Lee, Young-Kyun Cho, Choul-Young Kim, Microelectronics Journal, 2023

[82] "Bulk CMOS Low Noise Amplifier with Two Stage HPF Noise Matching Structure" 

Jeong-Taek Lim, Han-Woong Choi, Sunkyu Choi, Ki-Jin Kim, Hi-Deok Lee, Hyoung-Ho Ko, Choul-Young Kim, IEEE Transactions on Circuits and Systems II-Express Briefs, 2023

[81] "Compliant Inductive Long-Stroke Linear-Position Sensors as an Alternative to Hall-Based Sensors for Automotive Applications"

Hyung-Sok Lim, Choul-Young Kim , Multidisciplinary Digital Publishing Institute, 2023

[80]  "Sub-6GHz LNA Using Two-Stage SNIM with Series Inter-Stage Inductor Based on 0.5-μm GaAs E-pHEMT Technology"

Jeong-Taek Son, Han-Woong Choi, IEEE Microwave and Wireless Technology Letters, 2023

2022

[79]   "Compact Ku‐band CMOS× 3 frequency multiplier with improved harmonic suppression"

Jeong-Taek Lim, Han-Woong Choi, Jae-Hyeok Song, Changkun Park, Choul-Young Kim, IEEE Microwave and Optical Technology Letters, 2022

[78]  "On-chip Triplexer Using Series-First Structure for Connecting Radio Frequency Modules in a 65 nm CMOS"

Jeong-Taek Lim, Hyun-Myung Oh, Sangrok Lee,Bang Chul Jung, Choul-Young Kim, IEEE Microwave and Optical Technology Letters, 2022

[77]  "A 65-nm 28-GHz CMOS Wilkinson power divider with improved isolation" 

Jae-Hyeok Song, Hyun-Myung Oh, Choul-Young Kim, IEEE Microwave and Optical Technology Letters, 2022

[76] "Ku-Band CMOS Power Amplifier with Three-Stack Power Stage to Enhance Output Power and Efficiency" 

Junhyuk Yang, Jaeyong Lee, Seongjin Jang, Hayeon Jeong, Choulyoung Kim, Changkun Park, Applied Sciences, 2022

2021

[75] "Low-Noise Chopper Amplifier Using Lateral PNP Input Stage With Automatic Base Current Cancellation" 

Hyungseup Kim, Yongsu Kwon , Donggeun You, Han-Woong Choi,  Seong Hyun Kim, Hyunwoo Heo ,  Choul-Young Kim, Hi-Deok Lee,  Hyoungho Ko,  IEEE Transactions on Circuits and Systems II-Express Briefs, 2021

[74]  "A Precise Lesion Localization System Using a Magnetometer with Real-time Baseline Cancellation for Laparoscopic Surgery"

Soon-Jae Kweon, WooJin Yun, HyunWoo Park,  Jeong-Ho Park, Jung Hoon Lee,  Min-Kyu Je,  Soh-Myung  Ha  and Choul-Young Kim, IEEE Access, 2021

[73]  "6.7 - 15.3 GHz CMOS Low Noise Amplifier"

 Han-Woong Choi, Sunkyu Choi, and Choul-Young Kim, IEEE Microwave and Wireless Components Letters, 2021

2020

[72] "Ultralow-Noise Figure and High Gain Ku-Band Bulk CMOS Low-Noise Amplifier With Large-Size Transistor" 

 Han-Woong Choi, Sunkyu Choi, and Choul-Young Kim, IEEE Microwave and Wireless Components Letters, 2020

[71]  "1-W, High-Gain, High-Efficiency, and Compact Sub-GHz Linear Power Amplifier Employing a 1:1 Transformer Balun in 180-nm CMOS" 

Han-Woong Choi, Sunkyu Choi, Jeong-Taek Lim and Choul-Young Kim, IEEE Microwave and Wireless Components Letters, 2020

[70] "A 1V 25 – 30 GHz Three-stage Linear CMOS Power Amplifier using Driver-stage RF Pre-distortion Technique" 

Sunkyu Choi, Hyeon-June Kim, Eun-Gyu Lee, Han-Woong Choi, Jeong-Taek Lim, and Choul-Young Kim, Microwave and Optical Technology Letters, 2020

[69] "A 25 GHz Power Amplifier Using Three-Stage Anti-Phase Linearization in Bulk 65-nm CMOS Technology" 

Han-Woong Choi, Sunkyu Choi, and Choul-Young Kim, IEEE Microwave and Wireless Components Letters,  2020

2019

[68]Hyeon-June Kim, Eun-Gyu Lee and Choul-Young Kim, "High Sensitivity Focal Plane Array-based Laser Detection and Ranging Receiver with Pixel Combining Readout Scheme," Journal of Semiconductor Technology and Science, Vol. 19, No. 4, pp. 327 - 335, Aug. 2019.

[67] Kyeong‐Hyeok Lee , Sunkyu Choi, and Choul-Young Kim, "A 25–30-GHz Asymmetric SPDT Switch for 5G Applications in 65-nm Triple-Well CMOS ," IEEE Microwave and Wireless Components Letters, Vol. 29, No. 6, pp. 391 - 393, Jun. 2019.

[66]Hyeon-June Kim, Eun-Gyu Lee, Han-Woong Choi, and Choul-Young Kim, "High Spatial Resolution Three-Dimensional Imaging Static Unitary Detector-Based Laser Detection and Ranging Sensor," MDPI Applied Sciences, Vol. 9, No. 10, Article no. 2145 May 2019.

[65]Sang-Hyo Kim, Kyeong-Hyeok Lee, and Choul-Young Kim, "Low-power 0.13-μm CMOS receiver for microwave Doppler sensor," Microwave and Optical Technology Letters, Vol. 61, Issue 4, pp. 2381 -2384, Apr. 2019.

[64]Hyeon-June Kim, Eun-Gyu Lee and Choul-Young Kim " A High-Multi Target Resolution Focal Plane Array-Based Laser Detection and Ranging Sensor ," MDPI Sensors Vol. 19, Issue. 5,Article no. 1210,Mar. 2019.

[63]Sungmook Lim , Hyunji Koo , Choul-Young Kim , Jungsoo Kim, Jae-Sung Rieh , and Songcheol Hong, "290-GHz 17-dB ON-/OFF-Ratio Modulator With Resonance Control Varactors," IEEE Microwave and Wireless Components Letters, Vol. 29, No. 1, pp. 50 - 52, Jan. 2019.

2018

[63]Young-Kyun Cho, Myung-Don Kim, and Choul-Young Kim, "ALow Switching-Noise and High-Efficiency Buck Converter Using a Continuous-Time Reconfigurable Delta-Sigma Modulator," IEEE Transactions on Power Electronics, Vol. 33, No. 12, pp. 10501-10511, Dec. 2018.

[62]Baekhyun Kim, Jingyu Jang, Choul-Young Kim, and Songcheol Hong "Integration of SPDT Antenna Switch With CMOS Power Amplifier and LNA for FMICW Radar Front End," IEEE Transactions on Microwave Theory and Tech., Vol. 66, No. 11, pp. 5087-5094, Nov. 2018.

[61]Jeong-Taek Lim, Hyun-Myung Oh, Jae‐Sun Kim, Han‐Woong Choi, Kyeong‐Hyeok Lee ,and Choul-Young Kim "Miniaturized Q-band ×8 Frequency Multiplier with Optimized Efficiency in 65-nm CMOS Technology," Microwave and Optical Technology Letters, Vol. 60, Issue 10, pp. 2402 - 2406, Oct. 2018.

[61]Minah Kim, Byungyeon Kim, Byungjun Park, Minsuk Lee, Youngjae Won, Choul-Young Kim, and Seungrag Lee, "A Digital Shade-Matching Device for Dental Color Determination Using the Support Vector Machine Algorithm," MDPI Sensors Vol. 18, No. 9, Article no. 3051, Sep. 2018.

[59]Jingyu Jang, Baekhyun Kim, Choul-Young Kim, and Songcheol Hong, "79 GHz digital attenuator-based variable-gain vector-sum phase shifter with high linearity," IEEE Microwave and Wireless Components Letters, Vol. 28, No. 8, pp. 693 - 695, Aug. 2018.

[58]Young-Kyun Cho, Myung-Don Kim, and Choul-Young Kim, "A Low-Power Continuous-Time Delta–Sigma Modulator Using Resonant Single Op-Amp Third-Order Loop Filter," IEEE Transactions on Circuits and Systems II, Vol. 65, Issue 7, pp. 854 - 858, Jul. 2018.

[57]Sungmook Lim, Choul-Young Kim, and Songcheol Hong, "Simultaneous Measurement of Thickness and Permittivity by means of the Resonance Frequency Fitting of a Micro-strip line Ring Resonator," IEEE Microwave and Wireless Components Letters, Vol. 28, Issue 6 pp. 539-541, Jun. 2018.

[56]Seungwan Chai, Sungmook Lim, Choul-Young Kim, and Songcheol Hong, "Matching Condition of Direct THz-signal Detection from On-chip Resonating Antennas with CMOS Transistors in Non-resonant Plasma Wave Mode," Journal of Infrared, Millimeter, and Terahertz Waves

[55]Jeong-Taek Lim, Jea-Eun Lee, Han-Woong Choi, Kyeong-Hyeok Lee, Choul-Young Kim "A 65 nm CMOS 4-Bit Phase Shifter for Ka-Band," International Journal of Microwave and Optical Technology, Vol. 13, No. 2, pp. 106-111, Mar. 2018.

[54]Young-Kyun Cho, Myung-Don Kim, and Choul-Young Kim, "A Low Switching-Noise and High-Efficiency Buck Converter Using a Continuous-Time Reconfigurable Delta-Sigma Modulator" IEEE Transactions on Power Electronics, online published, pp. 1-1, Feb. 2018

[53]Eun-Gyu Lee, Jae-Eun Lee, Minhyup Song, Gyu Dong Choi, Bongki Mheen, Bang Chul Jung, Choul-Young Kim, "4-to-1 Transimpedance combining amplifier-based static unitary detector for high-resolution of LADAR sensor," Analog Integrated Circuits and Signal Processing, Vol. 94, No. 3, pp. 481-495, Mar. 2018.

[52]Eun-Gyu Lee, Jae-Eun Lee, Han-Woong Choi, Kyeong-Hyeok Lee, Bang Chul Jung, Bongki Mheen and Choul-Young Kim, "Low-power CMOS Front-end ROIC Using Inverter-feedback RGC TIA for 3-D Flash LADAR Sensor," Journal of Semiconductor Technology and Science, Vol. 18, No. 1, pp. 57-64, Feb. 2018.

2017

[51]Hyun-Myung Oh, Jae-Sun Kim, Jeong-Taek Lim, and Choul-Young Kim, "A 2.4-GHz High Conversion Gain Passive Mixer Using Q-Boosted π-Type LCL Matching Networks in 90-nm CMOS," IEEE Microwave and Wireless Components Letters, Vol. 27, No. 8, pp. 736-738, Aug. 2017.

[50]Young-Kyun Cho, Myung-Don Kim, and Choul-Young Kim, "A Low-Power Continuous-Time Delta–Sigma Modulator Using Resonant Single Op-Amp Third-Order Loop Filter," IEEE Transactions on Circuit and Systems II, Vol. PP, Issue 99, Jul. 2017.

[49]Eun-Gyu Lee, Jae-Eun Lee, Bang Chul Jung, Bongki Mheen and Choul-Young Kim, "Switched 4-to-1 Transimpedance Combining Amplifier for Receiver Front-End Circuit of Static Unitary Detector-Based LADAR System,: MDPI Applied Sciences, Vol. 7, No. 7, Article no. 689, Jul. 2017.

[48]Hyun-Seung Lee and Choul-Young Kim, "Wideband Bandstop filter Using Spurline and Symmetric Coupled Open Stubs," Microwave and Optical Technology Letters, Vol. 59, Issue 7, pp.1605-1608, Jul. 2017.

[47]Hyun-Myung Oh, Jae-Sun Kim, and Choul-Young Kim, "Miniaturized X/Ku-band frequency doubler with high gain and optimized doubling-core efficiency in 65 NM CMOS technology," Microwave and Optical Technology Letters, Vol. 59, Issue. 6, pp.1265-1267, Jun. 2017

[46]Jae-Sun Kim, Hyun-Myung Oh, Chul Woo Byeon, Ju Ho Son, Jeong Ho Lee, Jooseok Lee, and Choul-Young Kim, "V-band  Frequency Multiplier With Optimized Structure and High Spectral Purity Using 65-nm CMOS Process," IEEE Microwave and Wireless Components Letters, Vol. 27, Issue 5, pp. 506-508, May 2017.

[45]Young-Kyun Cho, Bong Hyuk Park, and Choul-Young Kim, "Wideband and Multiband Long-Term Evolution Transmitter Using Envelope Delta-Sigma Modulation Technique," Analog Integrated Circuits and Signal Processing, Vol. 91, No. 1, pp 155-162, Apr. 2017

[44]Gitae Pyo, Choul-Young Kim, Songcheol Hong, "Single-Antenna FMCW Radar CMOS Transceiver IC," IEEE Transactions on Microwave Theory and Tech., Vol. 65, No. 3 pp. 945-954, Mar. 2017

[43]Hyun-Myung Oh, Eun-Gyu Lee, Jeong-Taek Lim, Jae-Eun Lee, Chul Woo Byeon, JuHo Son, Jeong Ho Lee, and Choul-Young Kim, "A Low Insertion Loss, Wideband and Compact Wilkinson Power Divider/Combiner with Lumped Components in 65 nm CMOS," Microwave and Optical Technology Letters,V.017

[42]Hyun-Myung Oh, Jae-Sun Kim, and Choul-Young Kim,"K-band Frequency Doubler With Low Power Consumption and Compact Size in 65 nm," Microwave and Optical Technology Letters,Vol. 59, No. 1,pp.93-95,Jan. 2017

2016

[41]Bang Chul Jung, Choul-Young Kim, Hyoungho Ko, and Ji-Hoon Kim,"2048-Point Fast Fourier Transform Processing Based on Twiddle Factor Reduction and Dynamic Data Scaling," Advanced Science Letters, Vol. 22,No. 11,pp. 3662 – 3666, Nov. 2016

[40]Hyun-Myung Oh, Jae-Sun Kim, Bang Chul Jung, Ji-Hoon Kim, Hyoungho Ko, and Chul-Young Kim,"A 2-Stage Low Noise Amplifier in 90 nm CMOS for 2.4 GHz Applications,"Advanced Science Letters,Vol. 22,No. 11,pp. 3228 - 3231,Nov. 2016

[39]Gitae Pyo, Jaemo Yang, Choul-Young Kim, Songcheol Hong,"K-Band Single-Path Dual-Mode CMOS Transmitter for FMCW/UWB Radar," IEEE Microwave and Wireless Components Letters,Vol. 26,No. 10,pp. 858-860, Oct. 2016

[38]Hyunji Koo, Choul-Young Kim, and Songcheol Hong,"A 254 GHz CMOS Transmitter with VCO-Q Modulation,"IEEE Microwave and Wireless Components Letters,Vol. 26, No. 6, pp. 458-460, Jun. 2016

[37]Jae-Sun Kim, Gyeong-Seop Shin, Hyun-Myung Oh, Sunkyu Choi, Chul Woo Byeon, Ju Ho Son, Jeong Ho Lee, and Choul-Young Kim, "Improved IIP3 Double-Pole Double-Throw Switch with Body and Gate Floated Multi-stack Resonator in 65 nm CMOS for WiGig Applications," Electronics Letter,Vol. 52, Issue 8, pp. 665-667, Apr. 2016

[36]Young-Kyun Cho, Bong Hyuk Park, and Choul-Young Kim,"A 5.2-mW 61-dB SNDR 15-MHz Bandwidth CT ΔΣ Modulator Using a Single Operational Amplifier and a Single Feedback DAC," ETRI Journal, Vol. 38, No. 2, pp. 217-226, Apr. 2016.

[35]Jingyu Jang, Juntaek Oh, Choul-Young Kim, and Songcheol Hong, "A 79-GHz Adaptive-Gain and Low-Noise UWB Radar Receiver Front-End in 65-nm CMOS" IEEE Transactions on Microwave Theory and Tech.,Vol. 64, No. 3, pp. 859-867, Mar. 2016.

[34]Jae-Sun Kim, Sung-Min Moon, Hyun-Myung Oh, and Choul-Young Kim,"A fully integrated LTCC Wilkinson power divider combiner using a parasitic compensated 100 OHM RF resistor for 60 GHz wireless applications"Microwave and Optical Technology Letters, Vol. 58, No. 3, pp.720-722, Mar. 2016

[33] Gyeong-Seop Shin, Jae-Sun Kim, Hyun-Myung Oh, Sunkyu Choi, Chul Woo Byeon, Ju Ho Son, Jeong Ho Lee, and Choul-Young Kim, "Low Insertion Loss, Compact 4-bit Phase Shifter in 65 nm CMOS for 5G Applications," IEEE Microwave and Wireless Components Letters, Vo. 26, No. 1, pp. 37-39, Jan. 2016.

2015

[32]Juntaek Oh, Jingyu Jang, Choul-Young Kim, and Songcheol Hong, "A W-Band 4-GHz Bandwidth Phase-Modulated Pulse Compression Radar Transmitter in 65-nm CMOS," IEEE Transactions on Microwave Theory and Tech., Vol. 63, No. 8, pp. 2609-2618, Aug. 2015.

[31]Juntaek Oh, Jingyu Jang, Choul-Young Kim, and Songcheol Hong, "A W-Band High-Efficiency CMOS Differential Current-Reused Frequency Doubler," IEEE Microwave and Wireless Components Letters, Vol. 25, No. 5, pp. 307-309, May, 2015.

[30]Eun-Gyu Lee, Ji-Hoon Kim, Hyoungho Ko, and Choul-Young Kim, "The Anti-Reflection Coating Using the Silicon Nitride and Silicon Monoxide for InP Based Solar Cells," Journal of Computational and Theoretical Nanoscience, Vol. 12, No. 5, pp. 1- 4, May, 2015.

[29]Seong-Yong Jang, Sung-Kyu Kwon, Jong-Kwan Shin, Jae-Nam Yu, Sun-Ho Oh, Jin-Woong Jeong, Hyeong-Sub Song, Choul-Young Kim, Ga-Won Lee, and Hi-Deok Lee "Decrease of Parasitic Capacitance for Improvement of RF Performance of Multi-finger MOSFETs in 90-nm CMOS Technology," Journal of Semiconductor Technology and Science, Vol. 15, No. 2, pp. 312-317, Apr. 2015.

[28]Hyunji Koo, Choul-Young Kim, SongCheol Hong, "A G-Band Standing-Wave Push-Push VCO Using a Transmission-Line Resonator," IEEE Transactions on Microwave Theory and Tech., Vol. 63, No. 3, pp. 1036-1045, Mar. 2015.

2014

[27]Sunkyu Choi, Juho Son, Seungpyo Hong, Gyong-Seop Shin, and Choul-Young Kim, “A Low Loss Double-Pole Double-Throw Switch in 65 nm CMOS for WiGig Applications,” Microwave and Optical Technology Letters, Vol. 56, Issue. 12, pp. 2864-2867, Dec. 2014.

[26]Eun-Gyu Lee, Jongsun An and Choul-Young Kim, "Fully integrated four-input combining receiver front-end circuit for laser radar with static unitary detector," Electronics Letter, Vol. 50, Issue 21, pp. 1543-1545,Oct. 2014.

[25]Ho-Young Kwak, Sung-Kyu Kwon, Hyuk-Min Kwon, Seung-Yong Sung, Su Lim, Choul-Young Kim, Ga-Won Lee, and Hi-Deok Lee, "Characterization of Dielectric Relaxation and Reliability of High-k MIM Capacitor Under Constant Voltage Stress," Journal of Semiconductor Technology and Science, Vol. 14, No. 5, pp. 543-548, Oct. 2014.

[24]Hyun-Seung Lee and Choul-Young Kim,“An LTCC Multilayer Packaged 24-GHz Short-Range Radar With An Embeded Tx Leakage Canceller,” Microwave and Optical Technology Letters, Vol. 56, No. 3, pp.671-677,Mar. 2014.

[23]Sunwoo Kong, Sungeun Lee, Choul-Young Kim and Songcheol Hong, “Wireless Cooperative Synchronization of Coherent UWB MIMO Radar,” IEEE Transactions on Microwave Theory and Tech., Vol. 62, No. 1, pp. 154-165, Jan. 2014.

2013

[22]Hyun-Seung Lee, Eun-Gyu Lee and Choul-Young Kim, “A K-band Delay Line Based on Parasitic Reduced Artificial Left-Handed Transmission Line,” International Journal of Microwave and Wireless Technologies, Vol. 5, Issue 6, pp. 709-711, Dec. 2013.

[21]Choul-Young Kim, and Songcheol Hong,“A compact 24 GHz quadrature Doppler radar with front-end MMIC,” International Journal of Electronics, (DOI:10.1080/00207217.2012.743074, 2012) Vol. 100, Issue 9, pp. 1184-1195 Dec. 2013.

[20]Hyun-Seung Lee, Won-Gyu Lim and Choul-Young Kim,“Compact Wideband Bandstop Filters with Electrically Coupled Open Stubs,”Microwave and Optical Technology Letters, Vol. 55 No. 11, pp. 2701-2703, Nov. 2013.

[19]Joo Young Choi, Eun-Gyu Lee, Sung-Min Moon, Ji-Hoon Kim, Hyoungho Ko, Choul-Young Kim,“CMOS Transimpedance Amplifier for Laser Radar Receiver,” Journal of Next Generation Information Technology(JNIT),Vol. 5, No. 14, pp. 512-516,Oct. 2013.

[18]Sung-Min Moon, Joo-Young Choi, Eun-Gyu Lee, Ji-Hoon Kim, Hyoungho Ko, Choul-Young Kim,“A High-speed CMOS Comparator with hysteresis characteristics,”

Journal of Next Generation Information Technology(JNIT),Vol. 5,No. 14, pp. 517-521, Oct. 2013.

[17]Hyunho Kim, Kyomuk Lim, Seunghyun Lim, Changho Seok, Gyungtae Kim, Ji-Hoon Kim,Cheol-Young Kim, Hyoungho Ko "A Digitally Trimmable Continuous-Time Capacitive Readout ASIC for MEMS vibratory gyroscope," International Journal of Advancements in Computing Technology, Vol. 5, No. 12, pp. 169-173, Aug. 2013.

[16]Kyomuk Lim, Jindeok Seo, Seunghyun Im, Hyounho Kim, Changho Seok, Gyungtae Kim, Ji-Hoon Kim, Choul-Young Kim, and Hyoungho Ko, "A Light Amplitude Modulated Neural Stimulator with Photodiode for Visual Prostheses," International Journal of Advancements in Computing Technology,  Vol. 5, No. 12,  pp. 164-168, Aug. 2013.

[15]Donghyup Shin, Choul-Young Kim, Dong-Woo Kang and Gabriel M. Rebeiz, “A High-Power Packaged Four-Element X-band Phased-Array Transmitter in 0.13um CMOS for Radar and Communication Systems,” IEEE Transactions on Microwave Theory and Tech., Vol. 61, No. 8, pp.3060-3071, Aug. 2013.

[14]Sang Young Kim, Ozgur Inac, Choul-Young Kim, Donghyup Shin and Gabriel M. Rebeiz, “A 76-84 GHz 16-Element Phased Array Receiver with a Chip-Level Built-In Self-Test System,” IEEE Transactions on Microwave Theory and Tech., Vol. 61, No. 8, pp.3083-3098, Aug. 2013.

[13Hyun-Seung Lee, Won-Gyu Lim and Choul-Young Kim, “Miniaturized Bandstop Filter Using Broadside Coupled Meander line,” Far East Journal of Electronics and Communications, Vol.10, Issue 2, pp. 113-120, Jun. 2013.

[12]Sunwoo Kong, Choul-Young Kim, and Songcheol Hong, “A K-Band UWB Low-Noise CMOS Mixer With Bleeding Path Gm-Boosting Technique,” IEEE Transaction on Circuits and Systems II, Vol. 60, No. 3, pp.117-121, Mar. 2013.

2012

[11]Sungeun Lee, Choul-Young Kim, and Songcheol Hong,“A K-Band CMOS UWB Radar Transmitter With a Bi-Phase Modulating Pulsed Oscillator,” IEEE Transactions on Microwave Theory and Tech., Vol. 60, No. 5, pp. 1405-1412, May 2012.

[10]Jaemo Yang, Gitae Pyo, Choul-Young Kim, and Songcheol Hong, “A 24-GHz CMOS UWB Radar Transmitter With Compressed Pulses,” IEEE Transactions on Microwave Theory and Tech., Vol. 60, No. 4, pp. 1117-1125, Apr. 2012

[9]Choul-Young Kim, Dongwoo Kang, Gabriel M. Rebeiz, “A 44-46 GHz 16-Element SiGe BiCMOS High-Linearity Transmit/Receive Phased Array,”IEEE Transactions on Microwave Theory and Tech., Vol. 60, No. 3,pp. 730-742,Mar. 2012.

2010

[8]Jaemo Yang, Choul-Young Kim, Dong-Wook Kim, and Songcheol Hong,“Design of a 24-GHz CMOS VCO with an Asymmetric-Width Transformer,”IEEE Transactions on Circuit and Systems II,Vol.58,No 3,pp. 173-177,Mar. 2010.

2009

[7]Choul-Young Kim, Jeong-Geun Kim, Donghyun Baek, and Songcheol Hong, “A Circularly Polarized Balanced Radar Front-End with a Single Antenna for 24 GHz Radar Applications,” IEEE Transactions on Microwave Theory and Tech.,Vol. 57,No. 2,pp. 293-297,Feb. 2009.

2008

[6]Choul-Young Kim, Jaemo Yang, Dong-Wook Kim, and Songcheol Hong,“A K-band CMOS Voltage Controlled Delay Line Based on an Artificial Left-Handed Transmission Line,”IEEE Microwave and Wireless Components Letters,Vol. 18,No. 11,pp. 731-733, Nov. 2008.

2007

[5] Choul-Young Kim, Jeong-Geun Kim and Songcheol Hong,“A Quadrature Radar Topology With Tx Leakage Canceller for 24-GHz Radar Applications,”IEEE Transactions on Microwave Theory and Tech.,Vol. 55,No. 7,pp. 1438-1444, Jul. 2007.

2005

[4] Choul-Young Kim, Jung-Ho Cha, Jaeho Kim and Young-Se Kwon,“Open-Circuit Voltage Improvement in InGaAs/InP Heterojunction Solar Cells,”Japanese Journal of Applied Physics,Vol. 44,No. 4B,pp. 2523-2524,Apr. 2005.

[3] Choul-Young Kim, Jung-Ho Cha, Jaeho Kim and Young-Se Kwon,“Improvement of Short-Circuit Current of InP/InGaAsP/InP Double Heterojunction Solar Cells,”IET Electronics Letters,Vol. 41,No. 9,pp. 557-559, Apr. 2005.

[2] Jung-Ho Cha, Jaeho Kim, Choul-Young Kim, Seong-Ho Shin and Young-Se Kwon, “Monolithic Integration of InP-Based HEMT and MSM Photodiode Using InGaAsP Buffer,” Japanese Journal of Applied Physics,Vol. 44,No. 4B,pp. 2549-2552,Apr. 2005.

2004

[1] Moonjung Kim, Choul-Young Kim, and Young-Se Kwon,“InP/InGaAs Heterojunction Bipolar transistors With Low-Resistance Contact on Heavily Doped InP Emitter Layer,” Applied Physics Letters,Vol. 84,No 15,pp. 2934-2936,Apr. 2004.

2025

[50] "A Ku-Band CMOS LNA with Symmetric Polarity-Selective Transformer for Efficient 180° Phase Shifting"

Jae-Hyeok Song, Jeong-Taek Lim, Jae-Eun Lee, Jeong-Taek Son, Joon-Hyung Kim, Min-Seok Baek, Eun-Gyu, and Choul-Young Kim, IEEE/MTT-S International Microwave Symposium (IMS), San Francisco, USA, 2025 

[49] "Broadband LNA with Dual-Resonance Matching Network with Capacitive Feedback for Improved Gain and Noise Figure Using 0.1-μm GaAs pHEMT Technology"

Jong-Seong Park, Jeong-Taek Son, Joon-Hyung Kim, Min-Seok Baek, Byeong-Chan Lee, Eun-Gyu Lee, Jeong-Taek Lim, Seong-Mo Moon, Dongpil Chang, and Choul-Young Kim, IEEE/MTT-S International Microwave Symposium (IMS), San Francisco, USA, 2025 

[48] "An 8-12.2GHz CMOS Low-Noise Amplifier with Partially Tail-Coupled Transformer and Large-Transistor Achieving 1.8 dB Average NF"

Min-Seok Baek, Jae-Hyeok Song, Jae-Eun Lee, Jong-Seong Park, Ilhun Kim,  Jeong-Taek Lim, Eun-Gyu Lee,  Seong-Mo Moon, Dongpil Chang, and Choul-Young Kim, IEEE/MTT-S International Microwave Symposium (IMS), San Francisco, USA, 2025 

[47] "CMOS Linear Power Amplifier Using pMOS Varactor for Ku-Band SATCOM"

IlHun Kim, Jae-Hyeok Song, Jeong-Taek Lim, Jae-Eun Lee, Jeong-Taek Son, Joon-Hyung Kim, Min-Seok Baek, Byeong-Chan Lee, Jong-Seong Park, Eun-Gyu Lee, Choul-Young Kim

2025 International Conference on Electronics, Information, and Communication (ICEIC)

[46] "1:2 Power Dividing Network with Lumped Power Dividers and Amplifier"

Byeong-Chan Lee, Eun-Gyu Lee, Jung-Taek Lim, Jae-Eun Lee, Jae-Hyeok Song, Jeong-Taek Son, Joon-Hyung Kim, Min-Seok Baek, Jong-Seong Park, Ilhun Kim, Choul-Young Kim

2025 International Conference on Electronics, Information, and Communication (ICEIC)

[45] "Design of a Buffer Amplifier for a W-Band Transceiver"

Jong-Seong Park, Jae-Hyeok Song, Jeong-Taek Lim, Jae-Eun Lee, Jeong-Taek Son, Joon-Hyung Kim, Min-Seok Baek, Byeong-Chan Lee, IlHun Kim, Eun-Gyu Lee, Choul-Young Kim

2025 International Conference on Electronics, Information, and Communication (ICEIC)

2024

[44] "CMOS Power Amplifiers with Symmetrical IMD3 Performance for 802.11ac 5G-Band WiFi Applications"

Jae-Hyeok Song, Jeong-Taek Lim, Jae-Eun Lee, Jeong-Taek Son, Joon-Hyung Kim, Min-Seok Baek, Byeong-Chan Lee, Jong-Seong Park, Ilhun Kim, Eun-Gyu Lee, Choul-Young Kim, IEEE Asia-Pacific Microwave Conference (APMC), Bali, Indonesia, 2024

[43] "An Efficient Ku-Band Two-Way Vertical-like Power-Combining Power Amplifier using Merged Inter-stage Transformers Achieving 23-23.4 dBm Psat and 45.2-46.6% Peak PAE in 65nm CMOS" 

Joon-Hyung Kim, Jeong-Taek Lim, Jae-Eun Lee, Jae-Hyeok Song, Jeong-Taek Son, Min-Seok Baek, Eun-Gyu Lee, Sunkyu Choi, Han-Woong Choi, Seong-Mo Moon, Dongpil Chang, and Choul-Young Kim, IEEE Radio Frequency Integrated Circuits Symposium (RFIC), Washington, DC, USA, 2024

[42] "Compact Dual-Core Drive Stage using Three-winding Transformer for CMOS Broadband Power Amplifier"

Joon-Hyung Kim, Jeong-Taek Son, Jae-Hyeok Song, Jae-Eun Lee, Min-Seok Baek, Jeong-Taek Lim, Han-Woong Choi, Seong-Mo Moon, Dongpil Chang, and Choul-Young Kim, IEEE MTT-S International Microwave Symposium (IMS), Washington, DC, USA, 2024

2023

[41] "Compact W-band 2-way Wilkinson Power Divider/combiner" 

Byeong-Chan Lee, Jung-Taek Lim, Jae-Hyeok Song, Joon-Hyung Kim, and Choul-Young Kim, ISOCC, 2023

[40] "Compact Down-Conversion Mixer for W-band Radar System in 65-nm CMOS" 

Jae-Hyeok Song, Gwanghyeon Jeong, and Choul-Young Kim, ISOCC, 2023

[39] "Ku-Band Low Noise Amplifier using 65-nm CMOS" 

Min-Seok Baek, Jae-Eun Lee, Jeong-Taek Son, Eun-Gyu Lee, and Choul-Young Kim, ISOCC, 2023

[38] "High-Performance Broadband CMOS Low-Noise Amplifier with a Three-Winding Transformer for Broadband Matching"

Joon-Hyung Kim, Jeong-Taek Son, Jung-Taek Lim, Jae-Eun Lee, Jae-Hyeok Song, Min-Seok Baek, Han-Woong Choi, Eun-Gyu Lee, Sunkyu Choi, Chong-Min Lee, Sung-Ku Yeo, and Choul-Young Kim, IEEE Radio Frequency Integrated Circuits Symposium (RFIC), San Diego, California, 2023 

2021

[37] "Implementation of Highly isolated duplexer for active phased array antenna system" 

Jeong-Taek Lim, Han-Woong Choi, and Choul-Young Kim, ISOCC, 2021

[36] "Designof Low Noise Amplifier Using RF CMOS Process"

Jeong-Taek Lim, and Choul-Young Kim, ISOCC, 2021

2020

[35] "A CMOS Band-pass Low Noise Amplifier with Excellent Gain Flatness for mm-wave 5G Communications"

Han-Woong Choi, Sunkyu Choi, and Choul-Young Kim, IEEE MTT-S International Microwave Symposium (IMS), Los angeles, United State of America, 2020 

[34]  "A Noble Double Balanced Mixer"

Han-Woong Choi, Jeong-Taek Lim, and Choul-Young Kim, International Conference on Electronics, Information and Communication (ICEIC), Spain, Barcelona, 2020

2019

[33]Jeong-Taek Lim, Sunkyu Choi, Eun-Gyu Lee, Han-Woong Choi, Jae-Hyeok Song, Sang-Hyo Kim, and Choul-Young Kim "25–40 GHz 180° Reflective-Type Phase Shifter using 65-nm CMOS Technology," European Microwave Conference (EuMC), Paris France, Oct. 2019

[32]Han-Woong Choi, Kyeong-Hyeok Lee, Jae-Eun Lee, Jeong-Taek Lim, Sun-Ik Lee, Ki-Ho Kwon, Jin-Back Jang, Won-Kyu Lim and Choul-Young Kim, "A compact 79GHz LNA for Automotive radar in 130nm SiGe BiCMOS," International Conference on Electronics, Information and Communication (ICEIC) 2019 Auckland New Zealand Jan.2019

[31]Kyeong-Hyeok Lee, Sun-Kyu Choi, Eun-Gyu Lee, Jae-Eun Lee, Jeong-Taek Lim, Han-Woong Choi, Sang-Hyo Kim, Jae-Hyeok Song, Dongju Lee, Wansik Kim, Jongpil Kim, Mihui Seo, Sosu Kim, Bang-Chul Jung and Choul-Young Kim, "High Linearity 65nm CMOS Ka-band SPDT Switch with Shunt Switch Device," International Conference on Electronics, Information and Communication (ICEIC) 2019 Auckland New Zealand Jan.2019

[30]Sang-Hyo Kim, Eun-Gyu Lee, Sun-Kyu Choi, Jung-Taek Lim, Jae-Eun Lee, Han-Woong Choi, Kyung-Hyeok Lee, Jae-Hyeok Song and Choul-Young Kim, "Design and Analyze of Compact Ku-Band Wilkinson Power Combiner in 65nm CMOS Technology," International Conference on Electronics, Information and Communication (ICEIC) 2019 Auckland New Zealand Jan.2019

[29]Jae-Hyeok Song, Eun-Gyu Lee, Sun-Kyu Choi, Jung-Taek Lim, Jae-Eun Lee, Han-Woong Choi, Kyung-Hyeok Lee, Sang-Hyo Kim and Choul-Young Kim, "Wireless DC Power Generator for Passive RFID by using Cockroft-Walton Voltage Multiplier in CMOS 0.18um Technology," International Conference on Electronics, Information and Communication (ICEIC) 2019 Auckland New Zealand Jan.2019

2018

[28]Kyeong-Hyeok Lee, Jae-Eun Lee, Jeong-Taek Lim, Han-Woong Choi, Kwang-Ho Ann, Ki-Jin Kim, and Choul-Young Kim, "A 40 nm CMOS W-band SPDT switch for radar of automotive applications," International Conference on Electronics, Information and Communication (ICEIC) 2018 Hawaii USA Jan. 2018

[27]Han-Woong Choi, Kyeong-Hyeok Lee, Jae-Eun Lee, Jeong-Taek lim, Sun-Ik Lee, Ki-Ho Kwon, Jin-Back Jang, Won-Kyu Lim, and Choul-Young Kim, "RF Front-End Structure for improving communication performance of deep space probe," International Conference on Electronics, Information and Communication (ICEIC) 2018 Hawaii USA Jan. 2018

[26]Jeong-Taek lim, Jae-Eun Lee, Han-Woong Choi,Kyeong-Hyeok Lee, and Choul-Young Kim, "Ku-Band Frequency Tripler with 65 nm CMOS Technology," International Conference on Electronics, Information and Communication (ICEIC) 2018 Hawaii USA Jan. 2018

2017

[25]Seok-Oh Yun, Han Won Cho, Ji-Hoon Suh, Jeong-ho Park, Bong Gill Choi, Tae Jae Lee, Soon Jae Kweon, Jong-Kwon Lee, Chang-Ho Seo, Hyung-Joun Yoo, and Choul-Young Kim "Flexible pH sensor and system fabricated using PET film," IEEE Sensors Glasgow Scotland Oct. 2017

[24]Jeong-Taek Lim, Hyun-Myung Oh, Jae-Eun Lee, and Choul-Young Kim, "Ka-Band 4-Bit Phase Shifter with CMOS Technology," International Symposium on Microwave and Optical Technology, Seoul Korea Jun. 2017.

[23]Hyun-Myung Oh, Jeong-Taek Lim, Jae-Eun Lee, Eun-Gyu Lee, Jooseok Lee, Sun Kyu Choi, Chul Woo Byeon, Ju Ho Son, Jeong Ho Lee, and Choul-Young Kim, "28 GHz Wilkinson Power Divider with λ/6 Transmission Lines in 65 nm CMOS Technology," European Microwave Week, London UK Oct. 2016.

[22]Won-Cheol Lee, Byung-Wook Min, Choul-Young Kim, Jun Chul Kim, Jong-Min Yook "A compact switched beam-forming network using silicon IPD technology for low-cost 5G communication," IEEE MTT-S International Microwave Symposium, San Francisco USA May 2016.

2014

[21]Jongsun An, Joo-Young Choi, Eun-Gyu Lee and Choul-Yong Kim, "A Compact Comparator Block for Laser Radar Front-end Receiver Array," International SoC Design Conference, Jeju Korea Nov. 2014.

[20]Jong-Min Yook, Dongsu Kim, Jong-Chul Park, Chul-Young Kim, Sok Ho Yi, and Jun Chul Kim "Low-loss and High-isolation Through Silicon Via Technology for High Performance RF Applications," European Microwave Week, Rome Italy Oct. 2014.

2013

[19]Hyun-Seung Lee, Won-Gyu Lim and Choul-Young Kim, “Bandstop Resonator using Electrically Coupled Open Stud for Compact Wideband Bandstop Filters,” Asia Pacific Microwave Conference, Seoul Korea Nov. 2013.

[18]Hyun-Seung Lee, Eun-Gyu Lee, Ji-Hoon Kim, Hyoungho Ko, Choul-Young Kim, “24 GHz Doppler Radar Sensor for Robotic Applications,” International Conference on Control, Automation and Systems, Gwangju Korea pp. 1277-1279 Oct. 2013.

[17]Joo-Young Choi, Eun-Gyu Lee, Sung-Min Moon, Ji-Hoon Kim, Hyoung ho Ko, Choul-Young Kim, “CMOS Transimpedance Amplifier for Laser Radar Receiver,” International Conference on Convergence Technology, Chiangmai Tailand Jul. 2013.

[16]Sung-Min Moon, Joo-Young Choi, Eun-Gyu Lee, Sung-Min Moon, Ji-Hoon Kim, Hyoung ho Ko, Choul-Young Kim, “A High-speed CMOS Comparator with Hysteresis Characteristics,” International Conference on Convergence Technology, Chiangmai Tailand Jul. 2013.

[15]Bon-Hyun Ku, Paul Schmalenberg, Sang Young Kim, Choul-Young Kim, Ozgur Inac, Jae Seung Lee, Koji Shiozaki, and Gabriel M. Rebeiz, “A 16-Element 77–81-GHz Phased Array for Automotive Radars with ±50o Beam-Scanning Capabilities,” IEEE MTT-S International Microwave Symposium Seattle USA pp. 1-4 Jun. 2013.

2012

[14]Won-Gyu Lim, Hyun-Seung Lee, and Choul Young Kim, “Various Compact Bandstop Filters Using Short-Circuited Broadside Coupled Line,” Asia Pacific Microwave Conference, Kaohsiung Taiwan pp. 223-225 Dec. 2012.

[13]Sungeun Lee, Sunwoo Kong, Choul Young Kim, and Songcheol Hong, “A Low-power K-band CMOS UWB Radar Transceiver IC for Short Range Detection,” IEEE Radio Frequency Integrated Circuits Symposium, Montreal Canada pp. 503-506 Jun. 2012.

[12]Sang Young Kim, Ozgur Inac, Choul Young Kim, and Gabriel M. Rebeiz, “A 76-84 GHz 16-Element Phased Array Receiver with a Chip-Level Built-In-Self-Test System,” IEEE Radio Frequency Integrated Circuits Symposium, Montreal Canada pp. 127-130 Jun. 2012.

[11]. Inac, S. Y. Kim, D. Shin, Choul Young Kim, and Gabriel M. Rebeiz, “Built-In Self Test Systems for Silicon-Based Phased Arrays,” IEEE MTT-S International Microwave Symposium, Montreal Canada pp. 1-3 Jun. 2012.

[10]Donghyup Shin, Choul Young Kim, Dongwoo Kang, and Gabriel M. Rebeiz, “A 4-Element X-Band CMOS Phased-Array RFIC in a QFN Package,” IEEE MTT-S International Microwave Symposium, Montreal Canada pp. 1-3 Jun. 2012.

[9]Jonathan Hacker, Chris Hillman, Alex Papavasiliou, Chong Gon Kim, Abbas Abbaspuor-Tamijani, Choul Young Kim, Dongwoo Kang, and Gabriel M. Rebeiz, “A 16-Element Transmit/Receive Q-Band Electronically Steerable Subarray Tile,” IEEE MTT-S International Microwave Symposium, Montreal Canada pp. 1-3 Jun. 2012.

2011

[8]Gabriel M. Rebeiz, Kwang Jin Koh, Tiku Yu, Dongwoo Kang, ChouI-Young Kim, Yusuf Atesal, Berke Cetinoneri, Sang Young Kim, Kevin Ho and Donghyup Shin, “Highly Dense Microwave and Millimeter-Wave Phased Array T /R Modules Using CMOS and SiGe RFICs,” IEEE Wireless and Microwave Technology Conference (WAMICON) Tampa USA pp. 1-5 Jun. 2011.

2010

[7]Gabriel M. Rebeiz, Kwang Jin Koh, Tiku Yu, Dongwoo Kang, Choul Young Kim, Yusuf Atesal, Berke Cetinoneri, Sang Young Kim and Donghyup Shin, “Highly Dense Microwave and Millimeter-Wave Phased Array T/R Modules and Butler Matrices Using CMOS and SiGe RFICs,” IEEE International Symposium on Phased Array Systems and Technology, USA pp. 245-249 Oct. 2010.

2008

[6]Choul-Young Kim, Jaemo Yang, Dong-Wook Kim and Songcheol Hong, “A K-Band Quadrature VCO Based on Asymmetric Coupled Transmission Lines,” IEEE MTT-S International Microwave Symposium, Atlanta USA pp. 363-366 Jun. 2008.

2006

[5]Choul-Young Kim, Jeong-Geun Kim, Joon Ho Oum, Jong Ryul Yang, Dong-Kyun Kim, Jung Han Choi, Sang-Wook Kwon, Sang-Hoon Jeon, Jae-Woo Park, Songcheol Hong, “Tx Leakage Cancellers for 24 GHz and 77 GHz Vehicular Radar Applications,” IEEE MTT-S International Microwave Symposium, San Francisco USA pp. 1402-1405 Jun. 2006.

2005

[4]Choul-Young Kim, Jung-Ho Cha, Jaeho Kim and Young-Se Kwon, “InP/InGaAsP/InP Double Hetero-Junction Solar Cells With Increased Short-Circuit Current,” IEEE Photovoltaic Specialists Conference, Olando USA pp. 90-91, Jan. 2005.

[3] Jaeho Kim, Jung-Ho Cha, Man-Lyun Ha, Choul-Young Kim, Seong-Ho Shin and Young-Se Kwon, “RPCVD Silicon Nitride Passivation of InGaAsP With Temperature Ramping During Deposition,” Electrochemical Society, Tokyo Japan pp. 361, 2005

2004

[2] Choul-Young Kim, Jung-Ho Cha, Jaeho Kim and Young-Se Kwon, “InP/InGaAs/InP Double Hetero-Junction Solar Cells With Increased Open-Circuit Voltage,” Proceding of International Conference on Solid State Devices and Materials Tokyo Japan pp. 90-91, Sep. 2004

[1]  Jung-Ho Cha, Jaeho Kim, Choul-Young Kim, Seong-Ho Shin and Young-Se Kwon, “Integration of a HEMT and a MSM PD Using an InGaAsP Buffer,” Proceding of International Conference on Solid State Devices and Materials, Tokyo Japan pp. 942-943, Sep. 2004

2023

[7] "W-Band CMOS Wilkinson Power Divider"

Byeong-Chan Lee, Eun-Gyu Lee, Jong-Seong Park, Min-Seok Baek, Joon-Hyung Kim, Jeong-Taek Son, Jae-Hyeok Song, Jae-Eun Lee, Jeong-Taek Lim, Choul-Young Kim, The Journal of Korean Institute of Electromagnetic Engineering and Science, 2023

[6] "Q-Band Wideband Low Noise Amplifier Using 65-nm Bulk CMOS Process"

Joon-Hyung Kim, Jung-Taek Lim, Jae-Eun Lee, Jae-Hyeok Song, Jeong-Taek Son, Min-Seok Baek, Eun-Gyu Lee, Sun-Kyu Choi, Choul-Young Kim, The Journal of Korean Institute of Electromagnetic Engineering and Science, 2023

[5] "26.5∼29.5 GHz 6-Bit Switched-Filter Phase Shifter" 

Jae-Hyeok Song, Jeong-Taek Lim, Jae-Eun Lee, Jeong-Taek Son, Joon-Hyung Kim, Min-Seok Baek, Eun-Gyu Lee, Sun-Kyu Choi, Choul-Young Kim, The Journal of Korean Institute of Electromagnetic Engineering and Science, 2023

[4] "Design of W-Band Low-Noise Amplifier for Radar" 

Jae-Hyeok Song, Ki Jin Kim, Eun-Gyu Lee, Min-Seok Baek, Joon-Hyung Kim, Jeong-Taek Son, Jae-Eun Lee, Jeong-Taek Lim, Han-Woong Choi, Choul-Young Kim, The Journal of Korean Institute of Electromagnetic Engineering and Science, 2023

2022

[3] "K-Band Power Amplifier for SATCOM" 

Joon-Hyung Kim, Jung-Taek Lim, Jae-Eun Lee, Jae-Hyeok Song, Jeong-Taek Son, Min-Seok Baek, Eun-Gyu Lee, Sun-Kyu Choi, Choul-Young Kim, The Journal of Korean Institute of Electromagnetic Engineering and Science, 2022

[2] "Design of K-Band CMOS Low Noise Amplifier for Satellite Communication" 

Min-Seok Baek, Dong-Pil Chang, Seong-Mo Moon, Eun-Gyu Lee, Joon-Hyung Kim, Jeong-Taek Son, Jae-Hyeok Song, Jae-Eun Lee, Jeong-Taek Lim, Choul-Young Kim, The Journal of Korean Institute of Electromagnetic Engineering and Science, 2022

[1] "W-Band Broadband Low Noise Amplifier Design"

Han-Woong Choi, Ki-Choul Kim, Juman Park, Choul-Young Kim, The Journal of Korean Institute of Electromagnetic Engineering and Science, 2022

2023

[15] "M3D 0.18μm 공정을 이용한 Ka 대역 저잡음 증폭기"

박종성, 임정택, 이병찬, 김철영, 대한전자공학회 학술심포지움, 2023

[14] "Pseudo 저항을 이용한 가변이득 스위치드 커패시터 증폭기"

이재은, 임정택, 송재혁, 김철영, 대한전자공학회 학술심포지움, 2023

[13] "130nm SOI 공정을 이용한 저삽입손실 Ku 대역 5비트 감쇄기"

이병찬, 김준형, 백민석, 대한전자공학회 학술심포지움, 2023

[12] "위성통신용 Ka 대역 CMOS 위상 배열 수신기"

백민석, 송재혁, 손정택, 김철영, 대한전자공학회 학술심포지움, 2023

[11] "LEO SATCOM 용 64-/256-QAM 변조를 지원하는 FR3 대역 광대역 선형 전력 증폭기"

김준형, 이재은, 박종성, 김철영, 대한전자공학회 학술심포지움, 2023

[10] "CMOS 65 nm 공정을 이용한 K 대역 저손실 위상변위기"

임정택, 송재혁, 손정택, 이재은, 김준형, 백민석, 이병찬, 박종성, 이은규, 김철영, 전파 및 무선통신 학술대회, 2023

[9] "High performance CMOS Linear Power Amplifier with PMOS Linearizer"

Joon-Hyung Kim, Jung-Taek Lim, Jae-Eun Lee, Jae-Hyeok Song, Jeong-Taek Son, Min-Seok Baek, Byung-Chan Lee, Jong-Seong Park, Han-Woong Choi, and Choul-Young Kim, RF/Analog Circuit Workshop, 2023

[8] "5GHz Wi-Fi를 위한 CMOS 고선형 전력 증폭기 설계"

송재혁, 임정택, 이재은, 손정택, 김준형, 백민석, 이은규, 최선규, 김철영, 대한전자공학회 학술심포지움, 2023

2022

[7] "802.11ac 5GHz Wi-Fi를 위한 CMOS 고선형 전력 증폭기 설계"

송재혁, 임정택, 이재은, 손정택, 김준형, 백민석, 이은규, 최선규, 김철영, 대한전자공학회 학술심포지움, 2022

[6] "W 대역 레이다-통신 무선 시스템용 송수신기 설계" 

임정택, 최한웅, 송재혁, 이재은, 손정택, 김준형, 백민석, 이은규, 최선규, 김철영, 대한전자공학회 추계 학술대회, 2022

[5] "5G 이동통신을 위한 3단, 광대역, 고선형성, 고효율 65-nm Bulk CMOS 전력증폭기 설계"

최한웅, 임정택, 송재혁, 손정택, 이은규, 김준형, 백민석, 최선규, 김철영, 한국전자파학회 전파 및 무선통신 학술대회, 2022

[4] "Highly Linear CMOS Power Amplifier"

Han-Woong Choi, Jung-Taek Lim, Jae-Eun Lee, Jae-Hyeok Song, Jeong-Taek Son, Joon-Hyung Kim, Min-Seok Baek, and Choul-Young Kim, RF/Analog Circuit Workshop, 2022

[3] "W 대역 FMCW 레이다용 저잡음 증폭기 설계"

송재혁, 최한웅, 임정택, 이재은, 손정택, 김준형, 백민석, 이은규, 최선규, 김철영, 한국전자파학회 하계종합학술대회, 2022

2021

[2] "6G 이동통신을 위한 65-nm CMOS 110-160 GHz 저잡음 증폭기"

최한웅, 임정택, 손정택, 송재혁, 이재은, 김철영, 대한전자공학회 추계학술대회 , 2021

[1] "CMOS 65-nm 공정을 이용한 Ku-대역 4-Channel Phased Array Receiver" 

임정택, 최한웅, 송재혁, 이재은, 손정택. 김철영, 대한전자공학회 학술심포지움, 2021

2023

• "극성 유지 변압기를 이용한 180˚ 위상 천이기"

김철영, 송재혁, 임정택, Republic of Korea, 2023

• "접지 스위치를 이용한 완전 변압 180˚ 위상 천이기"

김철영, 송재혁, 임정택, 김준형, Republic of Korea, 2023

• "Enhancing Noise Figure of Low Noise Amplifier with Harmonic Filter Technique"

김철영, 송재혁, 백민석, PCT, 2023

• "위상 균형 조절을 위한 브릿지 커패시터 감쇠기"

김철영, 백민석, 김준형, Republic of Korea, 2023

• "상호 인덕턴스를 이용한 위상변위기 소형화 기법"

김철영, 임정택, 송재혁, Republic of Korea, 2023

• "송수신기"

김철영, 임정택, 송재혁, Republic of Korea, 2023

• "전력 증폭기 성능 향상을 위한 제2고조파 억제 기법"

김철영, 김준형, 백민석, Republic of Korea, 2023

• "Technique for Enhancing Noise Figure and Bandwidth in Low Noise Amplifier"

Choul-Young Kim, Joon-Hyung Kim, PCT, 2023

• "비용 절감 & 전력 증폭을 위한 양방향 전력 증폭기 설계 기법"

김철영, 김준형, Republic of Korea, 2023

• "광대역 특성을 위한 전력 증폭기 설계 기법"

김철영, 김준형, 최선규, Republic of Korea, 2023

• "저잡음 증폭기의 광대역 동작과 잡음지수 개선을 위한 PMOS 버랙터"

김철영, 백민석, 송재혁, Republic of Korea, 2023

2022

• "저잡음 증폭기 고조파 제거 잡음지수 개선 기법"

김철영, 최한웅, 송재혁, 백민석, Republic of Korea, 2022

• "저잡음 증폭기 잡음지수 개선 기법"

김철영, 김준형, 최한웅, 임정택, Republic of Korea, 2022

• "전력 분배기/결합기{POWER DIVIDER/COMBINER}"

김철영, 김준형, 송재혁, 김승예, Republic of Korea, 2022

2021

• "위상 천이가 가능한 전력 분배기/결합기"

김철영, 최한웅, 최선규, 이경혁, 송재혁, 이은규, 김상효, 임정택, 구자현, Republic of Korea, Aug. 18, 2021

2020

• "듀플렉서가 통합된 저잡음증폭기"

김철영, 주태환, 최한웅, 임정택, Republic of Korea, 2020

2019

• "통신 성능 향상을 위한 심우주 탐사선의 RF 전치단"

김철영, 최한웅, 이재은, 이경혁, 송재혁, 이은규, 김상효, 임정택, 최선규, Republic of Korea, 2019

• "RF 스위치 장치"

김철영, 이경혁, 최선규, 이은규, 이재은, 임정택, 최한웅, 송재혁, 김상효, Republic of Korea, 2019

• "온도 보상을 갖는 전하 펌프 회로"

김철영, 이재은, 임정택, 민병훈, Republic of Korea, 2019

• "주파수 선택적 특성을 갖는 이중 평형 주파수 변환 믹서"

김철영, 최한웅, 송재혁, 김상효, 임정택, Republic of Korea, 2019

• "위상 천이가 가능한 RF 전력 분배기/결합기"

김철영, 최한웅, 최선규, 이경혁, 송재혁, 이은규, 김상효, 임정택, 구자현, Republic of Korea, 2019

2023

[충남대학교-Star Fellowship 성과공유회 - 최우수상(스타 대학원상)] 송재혁

2022

[대한전자공학회 학술 심포지움 - 우수 논문상]  송재혁, 임정택, 이재은, 손정택, 김준형, 백민석, 이은규, 최선규, 김철영

2020

[충남대학교 대학원장상] 최한웅

2019

[충남대학교 대학원장상] 임정택

[충남대학교 총장상] 최한웅

[대한전자공학회 - RF 집적회로 연구회 - Rising researcher award ] 최한웅,최선규,임정택,김철영

[IEEE Daejeon section - 우수발표논문상] 최한웅, 임정택, 송재혁, 김철영

2018

[IEEE Daejeon section - 우수발표논문상] 최한웅, 임정택, 김철영