Hybrid Spoof Surface Plasmon Polariton and Substrate Integrated Waveguide Broadband Bandpass Filter with Wide Out-of-Band Rejection

Peng Chen, Luping Li, Kai Yang, Qiang Chen

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

This letter presents a novel hybrid spoof surface plasmon polariton (SSPP) and substrate integrated waveguide (SIW) filter, which has the broadband bandpass and wide out-of-band rejection features. The lower and upper cutoff frequencies of the passband can be independently adjusted by changing the structural parameters of the SSPP and SIW units, respectively. The dispersion curves of the SSPP and SIW units are analyzed and the influences of some structural parameters are investigated. A hybrid SSPP-SIW filter is fabricated based on the proposed method, and the measured passband is at 7.3-11.2 GHz with a relative bandwidth of 44%. The upper stopband rejection level is lower than -40 dB from 11.8 to 19.8 GHz.

Original languageEnglish
Article number8470140
Pages (from-to)984-986
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume28
Issue number11
DOIs
Publication statusPublished - 2018 Nov

Keywords

  • Broadband bandpass filter
  • spoof surface plasmon polariton (SSPP)
  • substrate integrated waveguide (SIW)

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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