A 29-40 GHz 6-Bit Phase Filtering Active Phase Shifter with <1.8°/<0.38 dB RMS Phase/Gain Errors for 5G Millimeter-Wave Spatial-Filtering Receivers. - Tao Zhang 086; Xinyuan Nie; Jiaxun Lv; Haohui Chen; Xiaoxian Liu; Qijun Lu; Bei Liu; Xin An; Lisheng Chen; Zhangming Zhu (CICC, 2026)