The design of waveguide filters based on cross-coupled resonators

Xiaobang Shang, Wenlin Xia, Michael J. Lancaster

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10 Citations (Scopus)
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This article addresses the physical realization of crosscoupled waveguide filters based on electromagnetic (EM) simulations. For this design procedure, the filter structure is simulated by successively adding one resonator at a time. The desired filter response is achieved without the need of a global optimisation on all the mechanical dimensions within an EM simulator. This reduces the design time required for a crosscoupled waveguide filter and allows the possibility of building high-order waveguide filters with complex crosscouplings. A sixth order X-band dual-band filter with a center frequency of 10 GHz and a fractional bandwidth of 1% is designed using this procedure and presented here as an example. Excellent agreement between simulation results and theoretical results from coupling matrix verifies the proposed approach. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:3–8, 2014
Original languageEnglish
Pages (from-to)3-8
JournalMicrowave and Optical Technology Letters
Issue number1
Early online date25 Nov 2013
Publication statusPublished - 1 Jan 2014


  • filter
  • waveguide
  • crosscoupling
  • coupling matrix
  • dual-band filter


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