Novel microstrip stepped-impedance resonator for compact wideband bandpass filters

Cheng Hsien Liang*, Chi-Yang Chang

*Corresponding author for this work

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

3 Scopus citations

Abstract

A novel λ/4 microstrip stepped-impedance resonator with interdigital coupling elements is presented in this paper. By combining the merits of these two structures, strong coupling between adjacent resonators for wideband bandpass filters can be easily obtained and the size of the filter can be largely reduced. More importantly, only a single-sided fabrication process is required in the implementation of the proposed filter. Two four-pole bandpass filters with 0.1 dB equal-ripple bandwidths of 38% and 55%, respectively, are designed and fabricated. Both filters have the advantages of compactness, wide bandwidth, and ease of fabrication.

Original languageEnglish
Title of host publicationAPMC 2009 - Asia Pacific Microwave Conference 2009
Pages941-944
Number of pages4
DOIs
StatePublished - 1 Dec 2009
EventAsia Pacific Microwave Conference 2009, APMC 2009 - Singapore, Singapore
Duration: 7 Dec 200910 Dec 2009

Publication series

NameAPMC 2009 - Asia Pacific Microwave Conference 2009

Conference

ConferenceAsia Pacific Microwave Conference 2009, APMC 2009
CountrySingapore
CitySingapore
Period7/12/0910/12/09

Keywords

  • Bandpass filter (BPF)
  • Interdigital
  • Microstrip line
  • Spurious response
  • Stepped-impedance resonator (SIR)

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    Liang, C. H., & Chang, C-Y. (2009). Novel microstrip stepped-impedance resonator for compact wideband bandpass filters. In APMC 2009 - Asia Pacific Microwave Conference 2009 (pp. 941-944). [5384325] (APMC 2009 - Asia Pacific Microwave Conference 2009). https://doi.org/10.1109/APMC.2009.5384325