Dual-Band Filtering Differential Phase Shifter Using Cascaded Wideband Phase Shifter and Bandstop Network With Two Same Phase Shifts - Qiu, Lei-Lei; Zhu, Lei (IEEE microwave and wireless components letters, 2021)
Keywords: Bandstop network; differential phase shifter; Dual band; filtering; Frequency measurement; Impedance; Passband; Phase measurement; Phase shifters; Wideband; wideband phase shifter