Mode selective bandpass filter with high selectivity based on thirty-second-mode circular SIW resonator

Sheng Zhang, Jin Chuan She, Meng Han Tong, Jia-Sheng Hong

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, a thirty-second-mode circular substrate integrated waveguide resonator (TMCSIWR) is firstly investigated, which well retains the fundamental mode and high-order modes (TM0n0 modes) in circular SIW resonator (CSIWR) for stable transmission. Considering miniaturization, high Q and multi frequency selection of TMCSIWR systematically, each TM0n0 mode in TMCSIWR can be effectively selected to achieve independent passband by adjusting feed position and coupling distance. Meanwhile, each TM0n0 mode and non-resonant modes produce multiple transmission zeros by mode coupling. Furthermore, arc groove disturbance effectively adjust coupling to achieve high selectivity. Finally, a multi-zero TM030 mode TMCSIW bandpass filter is designed and fabricated. The measured results are in good agreement with the simulated results.

Original languageEnglish
Pages (from-to)1820-1825
Number of pages6
JournalMicrowave and Optical Technology Letters
Volume63
Issue number7
Early online date15 Mar 2021
DOIs
Publication statusPublished - Jul 2021

Keywords

  • high selectivity
  • high-order modes
  • thirty-second-mode circular substrate integrated waveguide resonator

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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