A D-Band Power Amplifier in 65-nm CMOS by Adopting Simultaneous Output Power-and Gain-Matched Gmax-Core. - Dae-Woong Park; Dzuhri Radityo Utomo; Byeonghun Yun; Hafiz Usman Mahmood; Sang-Gug Lee 001 (IEEE Access, 2021)

Design of High-Gain Sub-THz Regenerative Amplifiers Based on Double-Gmax Gain Boosting Technique. - Dae-Woong Park; Dzuhri Radityo Utomo; Byeonghun Yun; Hafiz Usman Mahmood; Jong-Phil Hong; Sang-Gug Lee 001 (IEEE J. Solid State Circuits, 2021)

A 27 dB Sidelobe Suppression, 1.12 GHz BW-10dB UWB Pulse Generator With Process Compensation. - Hafiz Usman Mahmood; Dzuhri Radityo Utomo; Jusung Kim; Sang-Gug Lee 001 (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

A 24% Efficient, 15.36 dBm Output Power, Multi-Standard Digital Polar Transmitter with 7-bit Phase Interpolator-based BFSK Modulator and 23 dB Sidelobe Suppressed PA for Low-Power Wide Area Networks. - Hafiz Usman Mahmood; Keun-Mok Kim; Thinh Tran-Dinh; Jinglong Xu; Abdul Qahir; Jinho Ko; Jusung Kim; Sang-Gug Lee 001; Kyung-Sik Choi (A-SSCC, 2024)

A 0.1-4.2 GHz, 960-μW Inductor-Less and Negative Shunt Feedback LNA With Simultaneous Noise and Distortion Cancellation and Bandwidth Extension. - Hafiz Usman Mahmood; Sang-Gug Lee 001; Jusung Kim (IEEE Trans. Circuits Syst. I Regul. Pap., 2024)