A Novel Filtering Power Divider with Tunable Center Frequency and Bandwidth Using Three-Line Coupled Structure

Microstrip multifunctional reconfigurable wideband filtering power divider with tunable centre frequency, bandwidth, and power division ratio based on three‐parallel‐coupled line section

“…This design can achieve arbitrary PDR and tunable CF, while satisfying a certain return loss. In [7,8], varactor-based FPD with tunable BW and CF are investigated. But their sizes in [5][6][7][8] are relative bulky due to the adopted two path schemes and multiple coupled resonators/loaded stubs/additional input tuning network topology.…”

“…In [7,8], varactor-based FPD with tunable BW and CF are investigated. But their sizes in [5][6][7][8] are relative bulky due to the adopted two path schemes and multiple coupled resonators/loaded stubs/additional input tuning network topology. Besides, the design procedures in [5,6] are also complicated attributing to complex design equations and [5,7,8] are unable to realize reconfigurable PDR function.…”