received the M.S. degrees from Chungnam National University (CNU), Daejeon, Korea, in 2018. He is currently PhD student in the Department of Electronics Engineering, CNU. His research interests include RF/mm-wave integrated circuits and systems for short-range radar and phased-array antenna applications.

International Journal Papers

[2] 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.

[1] 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.

International Conference Papers

[3]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 Week, Paris France Oct. 2019

[2]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

[1]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.

Awards

[충남대학교 대학원장상 2019] 임정택

[IEEE Daejeon section - 우수발표논문상 2019] 최한웅, 임정택, 송재혁, 김철영

[대한전자공학회 - RF 집적회로 연구회 - Rising researcher award 2019 ] 최한웅,최선규,임정택,김철영

[IEEE Daejeon section - 우수발표논문상 2018] 최한웅, 임정택, 송재혁, 김철영

Patents

김철영, 주태환, 최한웅, 임정택, "듀플렉서가 통합된 저잡음증폭기" 10-2020-0056108 , Republic of Korea , Dec. 1, 2020

김철영,최한웅,송재혁,김상효,임정택, "주파수 선택적 특성을 갖는 이중 평형 주파수 변환 믹서," 10-2019-0180013 Republic of Korea Dec. 31, 2019.

김철영,최한웅,최선규,이경혁,송재혁,이은규,김상효,임정택,구자현, "위상 천이가 가능한 RF 전력 분배기/결합기," 10-2019-0174325 Republic of Korea Dec. 24, 2019.

김철영, 이은규, 이재은, 임정택, 최한웅, 이경혁, 송재혁, "라이다용 시간-전압 변환기 및 라이다," 10-2017-0183750 Republic of Korea Dec. 29, 2017.

김철영, 최한웅, 이재은, 이경혁, 송재혁, 이은규, 김상효, 임정택, 최선규 "통신 성능 향상을 위한 심우주 탐사선의 RF 전치단," 10-2018-0109994 10-2034686 Republic of Korea Oct. 15, 2019

김철영, 이경혁, 최선규, 이은규, 이재은, 임정택, 최한웅, 송재혁, 김상효 "RF 스위치 장치," 10-2017-0159513 10-2006196 Republic of Korea Jul. 26, 2019

김철영, 이재은, 임정택, 민병훈 "온도 보상을 갖는 전하 펌프 회로" 10-2017-0048724 10-2001833 Republic of Korea Jul. 15, 2019

김철영, 이은규, 오현명, 이재은, 임정택, "통합픽셀로 구성된 거리영상센서" 10-2016-0058640 10-1866764 Republic of Korea Jun. 05, 2018.

김철영, 임원규, 김상구, 권기호, 김중표, 이선익, 최한웅, 고상우, 임정택 "이중화 구조를 갖는 위성 송수신부," 10-2017-0010662 10-1860012 Republic of Korea May 15, 2018.

김철영, 오현명, 임정택, "저손실 소형 전력 분배기," 10-2016-0058033 10-1761300 Republic of Korea Jul. 19, 2017.

Scholarship

BK 사업단 - 2017-2020

received his MS from Chungnam National University (CNU), Daejeon, Republic of Korea, in 2017, and is currently working toward a Ph.D. in Microelectronics Engineering from CNU. His research interests include RF/mm-wave integrated circuits and systems for short-range radar and phased-array antenna applications.

Samsung Electronics System LSI - RF team (삼성전자 system LSI - 2022. 11)

International Journal Papers

[4]H. -W. Choi, C. -Y. Kim and S. Choi, "6.7–15.3 GHz, High-Performance Broadband Low-Noise Amplifier With Large Transistor and Two-Stage Broadband Noise Matching," in IEEE Microwave and Wireless Components Letters, vol. 31, no. 8, pp. 949-952, Aug. 2021

• State of the arts circuit among the bulk CMOS LNAs

[3]Han-Woong Choi, Sunkyu Choi, and Choul-Young Kim, "Ultralow-Noise Figure and High Gain Ku-Band Bulk CMOS Low-Noise Amplifier With Large-Size Transistor," in IEEE Microwave and Wireless Components Letters, vol. 31, no. 1, pp. 60-63, Jan. 2021

• State of the arts circuit among the bulk CMOS LNAs

[2] Han-Woong Choi, Sunkyu Choi, Jeong-Taek Lim and Choul-Young Kim, "1-W, High-Gain, High-Efficiency, and Compact Sub-GHz Linear Power Amplifier Employing a 1:1 Transformer Balun in 180-nm CMOS," in IEEE Microwave and Wireless Components Letters, vol. 30, no. 8, pp. 779-781, Aug. 2020.

• State of the arts circuit among the bulk CMOS PAs

[1] Han-Woong Choi, Sunkyu Choi, and Choul-Young Kim, "A 25 GHz Power Amplifier Using Three-Stage Anti-Phase Linearization in Bulk 65-nm CMOS Technology,"in IEEE Microwave and Wireless Components Letters, Vol. 30, No. 5, pp. 489 - 491, May 2020.

International Conference Papers

[4] Han-Woong Choi, Sunkyu Choi, and Choul-Young Kim"A CMOS Band-Pass Low Noise Amplifier with Excellent Gain Flatness for mm-Wave 5G Communications," 2020 IEEE/MTT-S International Microwave Symposium (IMS), Los Angeles, CA, USA, 2020, pp. 329-332.

• State of the arts circuit among the bulk CMOS LNAs

[3] Han-Woong Choi, Jeong-Taek Lim, and Choul-Young Kim, "A Noble Double Balanced Mixer" International Conference on Electronics, Information and Communication (ICEIC) 2020 Spain Jan.2020

[2] 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

[1] 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

Awards

[충남대학교 대학원장상 2020] 최한웅

[충남대학교 총장상 2019] 최한웅

[IEEE Daejeon section - 우수발표논문상 2019] 최한웅, 임정택, 송재혁, 김철영

[대한전자공학회 - RF 집적회로 연구회 - Rising researcher award 2019 ] 최한웅,최선규,임정택,김철영

[IEEE Daejeon section - 우수발표논문상 2018] 최한웅, 임정택, 송재혁, 김철영

Patents

김철영, 주태환, 최한웅, 임정택, "듀플렉서가 통합된 저잡음증폭기" 10-2020-0056108 , Republic of Korea , Dec. 1, 2020

김철영, 최한웅, 이재은, 이경혁, 송재혁, 이은규, 김상효, 임정택, 최선규 "통신 성능 향상을 위한 심우주 탐사선의 RF 전치단," 10-2018-0109994 10-2034686 Republic of Korea Oct. 15, 2019

김철영, 이경혁, 최선규, 이은규, 이재은, 임정택, 최한웅, 송재혁, 김상효 "RF 스위치 장치," 10-2017-0159513 10-2006196 Republic of Korea Jul. 26, 2019

김철영, 임원규, 김상구, 권기호, 김중표, 이선익, 최한웅, 고상우, 임정택 "이중화 구조를 갖는 위성 송수신부," 10-2017-0010662 10-1860012 Republic of Korea May 15, 2018

김철영,최한웅,송재혁,김상효,임정택, "주파수 선택적 특성을 갖는 이중 평형 주파수 변환 믹서," 10-2019-0180013 Republic of Korea Dec. 31, 2019.

김철영,최한웅,최선규,이경혁,송재혁,이은규,김상효,임정택,구자현, "위상 천이가 가능한 RF 전력 분배기/결합기," 10-2019-0174325 Republic of Korea Dec. 24, 2019.

김철영, 이은규, 이재은, 임정택, 최한웅, 이경혁, 송재혁, "라이다용 시간-전압 변환기 및 라이다," 10-2017-0183750 Republic of Korea Dec. 29, 2017.

Scholarship

BK 사업단 - 2017-2021

received the M.S. degrees from Chungnam National University (CNU), Daejeon, Korea, in 2018. He is currently PhD student in the Department of Electronics Engineering, CNU. His research interests include RF/mm-wave integrated circuits and systems for short-range radar and phased-array antenna applications.

Patents

김철영, 최한웅, 이재은, 이경혁, 송재혁, 이은규, 김상효, 임정택, 최선규 "통신 성능 향상을 위한 심우주 탐사선의 RF 전치단," 10-2018-0109994 10-2034686 Republic of Korea Oct. 15, 2019

김철영, 이경혁, 최선규, 이은규, 이재은, 임정택, 최한웅, 송재혁, 김상효 "RF 스위치 장치," 10-2017-0159513 10-2006196 Republic of Korea Jul. 26, 2019

김철영, 이재은, 임정택, 민병훈 "온도 보상을 갖는 전하 펌프 회로" 10-2017-0048724 10-2001833 Republic of Korea Jul. 15, 2019

김철영, 이은규, 오현명, 이재은, 임정택, "통합픽셀로 구성된 거리영상센서" 10-2016-0058640 10-1866764 Republic of Korea Jun. 05, 2018.

김철영, 이은규, 이재은, 임정택, 최한웅, 이경혁, 송재혁, "라이다용 시간-전압 변환기 및 라이다," 10-2017-0183750 Republic of Korea Dec. 29, 2017.

received the B.S. degrees from Chungnam National University (CNU), Daejeon, Korea, in 2021. He is currently MS & Ph.D student in the Department of Electronics Engineering, CNU. His research interests include RF/mm-wave integrated circuits and systems for short-range radar and phased-array antenna applications.

received the M.S. degrees from Chungnam National University (CNU), Daejeon, Korea, in 2022. He is currently Ph.D student in the Department of Electronics Engineering, CNU. His research interests include RF/mm-wave integrated circuits and systems for short-range radar and phased-array antenna applications.

received the B.S. degrees from Chungnam National University (CNU), Daejeon, Korea, in 2022. He is currently MS student in the Department of Electronics Engineering, CNU. His research interests include RF/mm-wave integrated circuits and systems for short-range radar and phased-array antenna applications.

received the B.S. degrees from Chungnam National University (CNU), Daejeon, Korea, in 2022. He is currently MS student in the Department of Electronics Engineering, CNU. His research interests include RF/mm-wave integrated circuits and systems for short-range radar and phased-array antenna applications.