Compact differential bandpass filter using onesixth mode and novel onethird mode triangular SIW resonators

Sheng Zhang, Xue-Dong Fu, Jun-Jie Cheng, Fa-Lin Liu, Jia-Sheng Hong

Research output: Contribution to journalLetter

1 Citation (Scopus)
49 Downloads (Pure)

Abstract

In this letter, a novel one-third mode triangular substrate integrated waveguide resonator (OTMTSIWR) is presented firstly. Compared with the conventional OTMTSIWR, this novel resonator has a lower resonant frequency (f0) and acceptable unloaded quality (Qu) to suppress the common-mode (CM) signals, while has more flexibilities to design balanced coupled topology structures. The novel OTMTSIWR and one-sixth mode triangular SIW resonator (OSMTSIWR) can be creatively cascaded together to further reduce filter size. To validate the properties of the novel OTMTSIWR and the above idea, a compact differential bandpass filter (BPF) with a size reduction over 87% is proposed. The filter can produce symmetrical frequency response with one transmission zero (TZ) on each side of the differential-mode (DM) passband by using cross-coupling technology. Meanwhile, good CM suppression is implemented in the DM passband. The measured results are in good agreement with the simulated ones.

Original languageEnglish
Article number20180044
JournalIEICE Electronics Express
Volume15
Issue number5
Early online date9 Feb 2018
DOIs
Publication statusPublished - Mar 2018

Keywords

  • Cross-coupling
  • Differential BPF
  • Novel OTMTSIWR

ASJC Scopus subject areas

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

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