Novel microstrip bandstop filters with controllable dual stopbands

Kuo Sheng Chin*, Jun Hong Yeh, Shuh Han Chao

*Corresponding author for this work

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

5 Scopus citations


This paper reports a novel bandstop filter featuring two controllable stopbands at desired frequencies. Stepped-impedance resonators are utilized in filter design to obtain dual-stop band characteristics and size reduction. The synthesis method is well developed and the design curves are given. Two experimental circuits are fabricated and measured to validate the design concept. Measurement results agree well with the simulation results. As compared with an ordinary DBBSF, the proposed filters can achieve more than 12% size reduction.

Original languageEnglish
Title of host publication2007 Asia-Pacific Microwave Conference, APMC
StatePublished - 2007
EventAsia-Pacific Microwave Conference, APMC 2007 - Bangkok, Thailand
Duration: 11 12 200714 12 2007

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


ConferenceAsia-Pacific Microwave Conference, APMC 2007


  • Bandstop filter
  • Dual-band filter
  • Microstrip filter
  • Stepped-impedance resonator


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