Keun-Mok Kim, Subin Kim, Kyung-Sik Choi, Jinho Ko, and Sang-Gug Lee. "A Sub-nW Single-Supply 32-kHz Sub-Harmonic Pulse Injection Crystal Oscillator." IEEE Journal of Solid-State Circuits. (Early Access)
Hyunki Jung, Dzuhri Radityo Utomo, Seok-Kyun Han, Jusung Kim, and Sang-Gug Lee. "An 80 MHz Bandwidth and 26.8 dBm OOB IIP3 Transimpedance Amplifier With Improved Nested Feedforward Compensation and Multi-Order Filtering." IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 67, Issue. 10, Oct. 2020.
Hafiz Usman Mahmood, Dzuhri Radityo Utomo, Seok-Kyun Han, Jusung Kim and Sang-Gug Lee, "A Ku-Band RF Front-End Employing Broadband Impedance Matching with 3.5 dB NF and 21 dB Conversion Gain in 45-nm CMOS Technology" in IEEE Transactions on Microwave Theory and Techniques, Electronics, Mar, 2020
Kyung Sik Choi, Dae Woong Park, Dzuhri Radityo Utomo, and Sang Gug Lee. "500 GHz CMOS heterodyne imager adopting fourth subharmonic passive mixer." Microwave and Optical Technology Letters 62.2, 683-687, Feb. 2020.
Kyung-Sik Choi, Keun-Mok Kim, Su-Bin Kim, Byeong-Hun Yun, Jinho Ko, Jusung Kim, and Sang-Gug Lee. "A 5.5-dBm, 31.9% Efficiency 915-MHz Transmitter Employing Frequency Tripler and 207-μW Synthesizer." IEEE Microwave and Wireless Components Letters, Vol. 30, Issue. 1, Jan. 2020.