A 21.6dBm CMOS power amplifier using a compact high-k output transformer for X-band application. - Bingfei Dou; Siwei Huang; Jiajin Song; Xiao Li 084; Zongming Duan; Xiaojiang Yao; Dongping Xiao; Yongjie Li 002; Liguo Sun (IEICE Electron. Express, 2021)

A Ka-band 23dBm power amplifier based on 4-way parallel-series power combiner with loaded capacitors in 65-nm CMOS. - Yongjie Li 002; Zongming Duan; Wei Lv; Xiao Li 084; Yuefei Dai; Liguo Sun (IEICE Electron. Express, 2021)

A 32-40 GHz 7-bit Bi-Directional Phase Shifter With 0.36 dB/1.6° RMS Magnitude/Phase Errors for Phased Array Systems. - Yongjie Li 002; Zongming Duan; Yun Fang; Xiao Li 084; Biao Deng; Yuefei Dai; Liguo Sun; Hao Gao 001 (IEEE Trans. Circuits Syst. I Regul. Pap., 2022)