New multiband coupling matrix synthesis technique and its microstrip implementation

Yi Ting Kuo*, Jhe Ching Lu, Ching Ku Liao, Chi-Yang Chang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

In this paper, we present a novel analytical multiband transversal coupling matrix synthesis technique. By properly combining several single-band filtering functions, the multiband filtering function with flexible transmission zeros and various bandwidth are available. The transversal coupling scheme is then transformed into a practically realizable coupling scheme. To verify the feasibility of the proposed method, two dual-band coupling schemes, both single-path and dual-path, are proposed as examples of the dual-band filter design. Finally, the dual-band filter, based on the coupling matrix corresponding to a specific coupling scheme, can be realized using a microstrip parallel-coupled structure.

Original languageEnglish
Article number5481988
Pages (from-to)1840-1850
Number of pages11
JournalIEEE Transactions on Microwave Theory and Techniques
Volume58
Issue number7 PART 1
DOIs
StatePublished - 1 Jul 2010

Keywords

  • Coupling matrix synthesis
  • Microstrip parallel-coupled filter
  • Multiband filter
  • Transmission zeros

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