A Compact Switchable Filtering Diplexer Based on Reused L-Shaped Resonator. - Xiaojun Bi 003; Qiang Ma 009; Chengxiao Ning; Qinfen Xu (IEEE Trans. Circuits Syst. II Express Briefs, 2018)

Compact Reflectionless Dual-band BPF by Reused Quad-Mode Resonator. - Zilan Cao; Xiaojun Bi 003; Qinfen Xu (ComComAP, 2019)

Analysis and Design of Ultra-Large Dynamic Range CMOS Transimpedance Amplifier With Automatically-Controlled Multi-Current-Bleeding Paths. - Xiaojun Bi 003; Zhen Gu; Qinfen Xu (IEEE Trans. Circuits Syst. I Regul. Pap., 2019)

High Sensitivity and Dynamic-Range 25 Gbaud Silicon Receiver Chipset With Current-Controlled DC Adjustment Path and Cube-Shape Ge-on-Si PD. - Xiaojun Bi 003; Jian Li; Zhen Gu; Bo Tang; Chaodi Sheng; Yan Yang; Qinfen Xu (IEEE Trans. Circuits Syst., 2020)

Slotline-Based Balanced Filter With Ultra-Wide Stopband and High Selectivity. - Xiaojun Bi 003; Xing Zeng; Qinfen Xu (IEEE Trans. Circuits Syst. II Express Briefs, 2020)

Octo-Band Bandpass Filter Based on Unequal-Width Cruciform Connected Resonator With Sharp Skirt. - Luhua Wang; Xiaojun Bi 003; Qinfen Xu (IEEE Trans. Circuits Syst. II Express Briefs, 2020)

High Selectivity Dual-Wideband Balun Filter Utilizing a Multimode T-line Loaded Middle-Shorted CSRR. - Xing Zeng; Xiaojun Bi 003; Zilan Cao; Ruichen Wan; Qinfen Xu (IEEE Trans. Circuits Syst., 2020)

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)

Tunable Reflectionless Filter With Independently Controllable Dual Passbands and Absorbed Harmonic Signals. - Zilan Cao; Xiaojun Bi 003; Qinfen Xu (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

Design and Analysis of Multi-Band Filtering Circuits - Xiaojun Bi 003; Qiang Ma 009; Zilan Cao; Qinfen Xu (Springer, 2022)

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)

A Wideband Balun Filter Based on Folded Ring Slotline Resonator and Dual-Feedback Stubs With >17.8 f0 Stopband Rejection. - Shiming Guan; Xiaojun Bi 003; Qiang Ma 009; Qinfen Xu (IEEE Trans. Circuits Syst. II Express Briefs, 2023)

Automatic Power Control for a Frequency Tunable Optoelectronic Oscillator. - Yufan Mei; Xiaojun Bi 003; Zilan Cao; Jingyu Weng; Xiaoguang Guo; Qinfen Xu (IEEE Trans. Circuits Syst. II Express Briefs, 2023)

Dual-Band Power Divider With Wide Passbands and Wide Harmonic Suppression Utilizing Multi-Mode T-Stub Loaded Slotline Resonators. - Zhe Zhang; Xiaojun Bi 003; Qiang Ma 009; Andy Shen; Chang Wu; Tao Guo; Qinfen Xu (IEEE Trans. Circuits Syst. II Express Briefs, 2023)

A Continuously-Tunable Optoelectronic Oscillator With Full Locking Range Utilizing Three Frequency Tuning Mechanisms. - Jingyu Weng; Xiaojun Bi 003; Zilan Cao; Xiaohong Wang; Qinfen Xu (IEEE Trans. Circuits Syst. I Regul. Pap., 2023)

A Class-C Eight-Phase Voltage-Controlled Oscillator With 184.2 dBc/Hz FoM and Loop-Based Superharmonic Coupling in 65-nm CMOS. - Qiang Ma 009; Xiaojun Bi 003; Qinfen Xu (IEEE Trans. Circuits Syst. II Express Briefs, 2024)

Compact Tunable Reflectionless Phase Shifter With Wide Bandwidth and Low Phase Deviation. - Zilan Cao; Xiaojun Bi 003; Andy Shen; Chang Wu; Zhen Huang; Tao Guo; Qinfen Xu (IEEE Trans. Circuits Syst. II Express Briefs, 2024)