Tunable bandpass-bandstop filter cascade for VHF applications

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

Abstract

A lumped-element bandpass-bandstop filter cascade with the capability of independently allocating its poles and zeros is demonstrated with commercially available components. The filter cascade consists of 14 tunable resonators to form advanced filtering functions. Eight resonators implement a reconfigurable fourth-order band-pass filter with tunable resonant-couplings, while the remaining six are used to form three second-order absorptive band-stop filters to create deep isolation levels. The filter cascade can be continuously tuned from 100 to 255MHz with high isolation (70dB at 5% away from the pass-band edge). Resonant coupling structures act as intrinsic switches to achieve reconfigurable signal routing. Therefore, switchless multi-band filter bank operation is also achieved.

Original languageEnglish
Title of host publication2016 IEEE 17th Annual Wireless and Microwave Technology Conference, WAMICON 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509011995
DOIs
Publication statusPublished - 1 Jun 2016
Externally publishedYes
Event17th IEEE Annual Wireless and Microwave Technology Conference, WAMICON 2016 - Clearwater, United States
Duration: 11 Apr 201613 Apr 2016

Publication series

Name2016 IEEE 17th Annual Wireless and Microwave Technology Conference, WAMICON 2016

Conference

Conference17th IEEE Annual Wireless and Microwave Technology Conference, WAMICON 2016
Country/TerritoryUnited States
CityClearwater
Period11/04/1613/04/16

Keywords

  • Bandpass-bandstop cascade
  • coupling resonator
  • high isolation
  • lumped-element filter
  • tunable filter

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