Novel Synthesis for Generalized Strongly Coupled Resonator Triplet Filters with Self-Suppressed Spikes

Yi Zeng1; Yimin Yang2; Ming Yu3

10.1109/IMS37962.2022.9865356

2022

2022 IEEE/MTT-S International Microwave Symposium - IMS 2022

0149-645X

978-1-6654-9614-8

2022 IEEE/MTT-S International Microwave Symposium - IMS 2022

2022-June

1-4

19-24 June 2022

Denver, CO, USA

This paper proposes a novel and general circuit synthesis approach for generalized strongly coupled resonator triplet (GSCRT) filters. Regardless of the positions where GSCRTs are extracted in the prototype, flexible circuit solutions with only positive couplings can be always achieved with controllable node self-coupling (diagonal entries in coupling matrix). Moreover, the spikes rendered by redundant resonances in the final synthesized circuit are “self-suppressed” even without additional band-stop sections. This significantly expands the application scope of GSCRT filters. One compact anti-interference nine-pole filter with five transmission zeros are fabricated, which has strongly validated the effectiveness of the proposed theories. Specially, this filter exhibits exceptional abilities to reject C-band terrestrial signals from 5G applications.

Anti-interference Filter Synthesis Redundant Resonance Self-suppressed Triplet

其他

EI

20223812764849

Crystal Resonators

Electronic Circuits Other Than Amplifiers, OscillatOrs, ModulatOrs, Limiters, DiscriminatOrs Or Mixers:713.5 ; Electronic Equipment, General Purpose And Industrial:715

IEEE

1.The Chinese University of Hong Kong, Hong Kong
2.Xidian University, China
3.Southern University of Science and Technology, China

Yi Zeng,Yimin Yang,Ming Yu. Novel Synthesis for Generalized Strongly Coupled Resonator Triplet Filters with Self-Suppressed Spikes[C],2022:1-4.