A Compact Single-Layer Ultra-Wideband Phase Shifter Using Weakly Coupled Lines. - Qingxiang Dong; Yongle Wu; Yana Zheng; Weimin Wang 008; Yuanan Liu (IEEE Access, 2019)

Single-Layer Dual-Band Bandwidth-Enhanced Filtering Phase Shifter With Two Different Predetermined Phase-Shifting Values. - Qingxiang Dong; Yongle Wu; Weijuan Chen; Yuhao Yang 001; Weimin Wang 008 (IEEE Trans. Circuits Syst. II Express Briefs, 2021)