Novel reconfigurable filtering crossover based on evanescent-mode cavity resonators

Junchen Lai, Tao Yang, Pei Ling Chi, Ruimin Xu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, a novel tunable filtering crossover based on evanescent-mode cavity is proposed for the first time. The design incorporates four substrate-integrated-waveguide (SIW) evanescent-mode cavity resonators and four sets of varactors between adjacent resonators. Coupling coefficient between adjacent resonators can be set to zero by tuning the varactors, which allows good isolation between adjacent resonators while having bandpass responses between nonadjacent resonators. With this simple configuration, filtering crossover with continuously frequency tuning covering from 2.07-2.75 GHz can be easily can achieved. Good agreement is obtained between simulated and measured results.

Original languageEnglish
Title of host publicationIMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages818-820
Number of pages3
ISBN (Electronic)9781728168159
DOIs
StatePublished - Aug 2020
Event2020 IEEE/MTT-S International Microwave Symposium, IMS 2020 - Virtual, Los Angeles, United States
Duration: 4 Aug 20206 Aug 2020

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2020-August
ISSN (Print)0149-645X

Conference

Conference2020 IEEE/MTT-S International Microwave Symposium, IMS 2020
CountryUnited States
CityVirtual, Los Angeles
Period4/08/206/08/20

Keywords

  • Continuously frequency tuning
  • Evanescent-mode cavity
  • Filtering crossover

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