An Interstage-Reflectionless V-Band Radiometer With Capacitor-Reused Absorptive Matching in 0.13-μm SiGe BiCMOS. - Xiaojun Bi 003; Zilan Cao; Zhaoming Feng; Chaodi Sheng; Qinfen Xu (IEEE Trans. Circuits Syst. I Regul. Pap., 2021)

A Filtering Balun Utilizing Multi-Ring Loaded Vertical Transition Structure With 161% Fractional Bandwidth and >5.8f₀ Stopband. - Zhaoming Feng; Xiaojun Bi 003; Zilan Cao; Andy Shen; Qichao Ding; Qinfen Xu (IEEE Trans. Circuits Syst. II Express Briefs, 2022)

A Wideband Functionality-Reconfigurable RF Building-Block With Four Operating Modes. - Zhaoming Feng; Xiaojun Bi 003; Qinfen Xu (IEEE Trans. Circuits Syst. II Express Briefs, 2022)