Modeling the High-Frequency Degradation of Phase/Frequency Detectors. - Roger Yubtzuan Chen; Zong-Yi Yang (IEEE Trans. Circuits Syst. II Express Briefs, 2010)

A CMOS transimpedance amplifier for optical wireless communications. - Roger Yubtzuan Chen; Zong-Yi Yang (ISPACS, 2013)

High-performance cost-efficient dual-band CMOS LC VCO. - Zong-Yi Yang; Roger Yubtzuan Chen (IEICE Electron. Express, 2015)

CMOS Transimpedance Amplifier for Visible Light Communications. - Roger Yubtzuan Chen; Zong-Yi Yang (IEEE Trans. Very Large Scale Integr. Syst., 2015)

High-Performance Regulated Charge Pump with an Extended Range of Load Current. - Roger Yubtzuan Chen; Zong-Yi Yang; Hongchin Lin (IEICE Trans. Electron., 2016)

CMOS Transimpedance Amplifier for Gigabit-per-Second Optical Wireless Communications. - Roger Yubtzuan Chen; Zong-Yi Yang (IEEE Trans. Circuits Syst. II Express Briefs, 2016)