A Balanced Quad-Band BPF With Independently Controllable Frequencies and High Selectivity. - Feng Wei 003; Hao Jie Yue; Xiao Hang Zhang; Xiao Wei Shi (IEEE Access, 2019)

Balanced Quad-Band Bandpass Filter With Controllable Frequencies and Bandwidths. - Feng Wei 003; Chi-Yuan Zhang; Hao Jie Yue; Xiao-Wei Shi (IEEE Access, 2019)