Low-loss, broadly-tunable cavity filter operating at UHF frequencies

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

A four-pole tunable filter has been demonstrated at UHF frequencies which tunes 300 MHz to 700 MHz and exhibits mid-band losses between 0.5 dB and 0.9 dB. This filter incorporates piezo-electric tuning of capacitively-loaded cavities and frequency-tailored input/output coupling networks to maintain good impedance match across more than an octave tuning band. The unloaded quality factor of the filter cavities range from 340-550. The filter has an output intercept point greater than +54 dBm and can handle power levels of +26 dBm.

Original languageEnglish
Title of host publication2015 IEEE MTT-S International Microwave Symposium, IMS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479982752
DOIs
Publication statusPublished - 24 Jul 2015
Externally publishedYes
EventIEEE MTT-S International Microwave Symposium, IMS 2015 - Phoenix, United States
Duration: 17 May 201522 May 2015

Publication series

Name2015 IEEE MTT-S International Microwave Symposium, IMS 2015

Conference

ConferenceIEEE MTT-S International Microwave Symposium, IMS 2015
Country/TerritoryUnited States
CityPhoenix
Period17/05/1522/05/15

Keywords

  • cavity resonators
  • microwave filters
  • piezoelectric transducers
  • Tunable circuits and devices
  • UHF circuits

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