# 특허등록 "위상천이가 가능한 전력 분배/결합기"

# 기초연구실 (2021 - 2023)

[SCI Journal Publication]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

[SCI Journal Publication]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.

[SCI Journal Publication] Han-Woong Choi, Sunkyu Choi, 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.

[Awards] 충남대학교 대학원장상 수상, 최한웅

[International Conference] 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.

[SCIE Journal Publication] Sunkyu Choi, Hyeon-June Kim, Eun-Gyu Lee, Han-Woong Choi, Jeong-Taek Lim, and Choul-Young Kim, "A 1V 25 – 30 GHz Three-stage Linear CMOS Power Amplifier using Driver-stage RF Pre-distortion Technique," Microwave and Optical Technology Letters, Vol. 62, Issue , pp. May 2020.

[SCI Journal Publication] 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," IEEE Microwave and Wireless Components Letters, Vol. 30, No. 5, pp. 489 - 491, May 2020.