An Electronically Tuned Bandstop Filter Using BST Varactors

Y.-H. Chun, J.-S. Hong, P. Bao, T. J. Jackson, M. J. Lancaster

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

3 Citations (Scopus)


This paper presents an investigation of a tunable bandstop filter using barium-strontium-titanate (BST) varactors. 3-pole bandstop filter with varactors is fabricated on MgO substrate. It is measured at the center frequency from 8.77 to 9.26 GHz and its maximum rejection is more than 26 dB at the stop band while the insertion loss at the pass band is less than 2 dB.
Original languageEnglish
Title of host publication2008 38th European Microwave Conference
Number of pages4
ISBN (Print)9782874870064
Publication statusPublished - 19 Jan 2009
Event38th European Microwave Conference 2008 - Amsterdam, Netherlands
Duration: 27 Oct 200831 Oct 2008


Conference38th European Microwave Conference 2008
Abbreviated titleEuMC 2008

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