Theory and experiment of dual-mode microstrip triangular patch resonators and filters

Jia Sheng Hong, Shuzhou Li

Research output: Contribution to journalArticlepeer-review

272 Citations (Scopus)


In this paper, we report on the results of an investigation into dual-mode operation of microstrip triangular patch resonators and their applications for designing dual-mode band-pass filters. It has been found theoretically that the dual modes can result from the rotation and superposition of a fundamental mode. The characteristics of the dual modes and their mode splitting are described. The applications of this new type of dual-mode microstrip patch resonator in the design of microwave planar filter are presented. A circuit model for operation of this type of filter is proposed. Two- and four-pole filters of this type are demonstrated for the first time. Both theoretical and experimental results are presented.

Original languageEnglish
Pages (from-to)1237-1243
Number of pages7
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number4
Publication statusPublished - Apr 2004


  • Dual-mode filters
  • Dual-mode resonators
  • Microstrip filters
  • Microstrip resonators


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