BST varactor tuned bandstop filter with slotted ground structure

Young Hoon Chun, Jia Sheng Hong, Peng Bao, Timothy J. Jackson, Michael J. Lancaster

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Citations (Scopus)

Abstract

This paper presents an investigation of tunable bandstop filter using slotted ground structure. A Barium-Strontium- Titanate (BST) varactor chip is used to tune each resonator and its location is determined by electromagnetic simulation for an optimum frequency tuning. 2-pole bandstop filter is measured at the center frequency from 1.2 to 1.4 GHz and its rejection is more than 15 dB at the stop band while the insertion loss at the pass band is less than 1 dB. © 2008 IEEE.

Original languageEnglish
Title of host publication2008 IEEE MTT-S International Microwave Symposium Digest, MTT
Pages1115-1118
Number of pages4
DOIs
Publication statusPublished - 2008
Event2008 IEEE MTT-S International Microwave Symposium Digest - Atlanta, GA, United States
Duration: 15 Jun 200820 Jun 2008

Conference

Conference2008 IEEE MTT-S International Microwave Symposium Digest
Abbreviated titleMTT
CountryUnited States
CityAtlanta, GA
Period15/06/0820/06/08

Keywords

  • Bandstop filter
  • BST
  • Slotted ground
  • Tunable circuit
  • Tunable filter
  • Varactor

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