Coupling Matrix Compression Technique for High-Isolation Dual-Mode Dual-Band Filters

Pengyu Ma, Bin Wei, Jia-Sheng Hong, Xubo Guo, Bisong Cao, Linan Jiang

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)
94 Downloads (Pure)


This paper proposes a new coupling matrix synthesis technique called the coupling matrix compression technique, which focuses on reducing the dimension of the N+2 coupling matrix. The presented coupling matrices can be compressed, and this technique can be used to design dual-mode resonators for high-isolation dual-band filters. One dual-mode resonator is represented as two closely coupled resonators when using this technique. The formulae for resonant frequencies and ωm in dual-mode theory are also derived in this paper. A dual-mode embedded hairpin resonator is designed and analyzed using this technique, and a dual-band filter using the proposed resonators is designed and fabricated to validate the proposed technique.

Original languageEnglish
Pages (from-to)2814-2821
Number of pages8
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number6
Early online date27 Mar 2018
Publication statusPublished - Jun 2018


  • Coupling matrix for filter synthesis
  • Couplings
  • dimension
  • Dual band
  • dual-band
  • dual-mode
  • microwave filters.
  • Microwave theory and techniques
  • Resonators
  • Topology
  • Transforms
  • Transmission line matrix methods

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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