Novel Wideband Single-Layer 90∘ Phase Shifter Based on Radial-Stub and Weak Coupled-Line. - Qiang Liu 017; Yong Li 016; Yuanan Liu (J. Circuits Syst. Comput., 2016)

Analytical Dual-Band Matching Approach for Concurrent High-Efficiency Power Amplifiers. - Wang Liu; Qiang Liu 017; Guangxing Du; Guolin Li (IEEE Trans. Circuits Syst. II Express Briefs, 2022)

Dual-Band High-Efficiency Power Amplifier With Adjustable Transmission Zero. - Zipeng Wan; Qiang Liu 017; Wang Liu; Dong Cheng (IEEE Trans. Circuits Syst. II Express Briefs, 2023)