Li, QunQunLiZhang, YonghongYonghongZhangCHUNG-TSE WU2024-03-062024-03-062017-12-0121563950https://scholars.lib.ntu.edu.tw/handle/123456789/640370This paper presents two filtering Wilkinson power dividers (FWPDs) with high selectivity and miniature size. A multimode resonator is used to replace a quarter-wavelength transmission line in a conventional Wilkinson power divider, and then the resonator-based FWPD is capable of splitting power and selecting frequency simultaneously. Two tri-mode resonators and two quad-mode resonators are applied to design a single- and a dual-band FWPD, respectively. Characteristics of the tri- and quad-mode resonators are analyzed, and the equivalent circuits of the proposed single- and dual-band FWPDs are presented. The input port matching and filtering response are explained by the even-mode equivalent circuit, while the output port matching and isolation characteristics can be investigated by the odd-mode equivalent circuit. Moreover, the magnetic source-load coupling introduces multiple transmission zeros to improve the frequency selectivity. All measured results are in good agreement with the full-wave simulation results.Filtering power divider (FPD) | Multimode resonator | Quad-mode resonator | Source-load coupling | Tri-mode resonatorjournal article10.1109/TCPMT.2017.27069582-s2.0-85021807085https://api.elsevier.com/content/abstract/scopus_id/85021807085