Ku-band gap waveguide filter with negative coupling structure

Hossein Sarbandi Farahani, Wolfgang Bosch

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


A novel compact gap waveguide resonator-coupled filter with negative coupling structure is presented. Gap waveguide is an interesting technology introduced for the design of microwave and mm-wave components with no need for electrical contact. It takes advantages of high quality factor, low loss, capability of integration with MMICs and multilayer structure. Gap waveguide features with folded negative coupling topology are effectively employed here to bring a high performance interconnect, miniaturized and cost effective filter. A fourth-degree Ku-band filter with two prescribed symmetric transmission zeros is designed and fabricated based on the groove gap waveguide platform to verify the validity of the method. The simulation and measurement results are in good agreement and exhibit high double-sided selectivity.

Original languageEnglish
Title of host publicationProceedings of European Microwave Conference in Central Europe, EuMCE 2019
EditorsJan Vrba, Milan Svanda, Ondrej Fiser, David Vrba
PublisherInstitute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)9782874870675
Publication statusPublished - 1 May 2019
Event2019 European Microwave Conference in Central Europe: EuMCE 2019 - Prague Congress Centre, Prague, Czech Republic
Duration: 13 May 201915 May 2019

Publication series

NameProceedings of European Microwave Conference in Central Europe, EuMCE 2019


Conference2019 European Microwave Conference in Central Europe
Abbreviated titleEuMCE
Country/TerritoryCzech Republic
Internet address


  • Filter
  • Groove gap waveguide resonator
  • High performance
  • Negative coupling structure
  • Transmission zeros

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Instrumentation

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