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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2007-12-29
Design of Band-Pass Waveguide Filter Using Frequency Selective Surfaces Loaded with Surface Mount Capacitors Based on Split-Field Update FDTD Method
By
Seyed Mohammad Amjadi,

    Dr. Seyed Mohammad Amjadi

    Iran University of Science and Technology

    Iran

    Homepage

Mohammad Soleimani

    Dr. Mohammad Soleimani

    Department of Electrical Engineering

    Iran University of Science and Technology

    Iran

    Homepage

Progress In Electromagnetics Research B, Vol. 3, 271-281, 2008
doi:10.2528/PIERB07122402 | Google Scholar

Abstract
A new band-pass narrow-band, miniaturized and single resonance within a wide range of frequency band frequency selective surface structure with lumped capacitors suitable for low frequency and narrowband waveguide filter applications is presented. The filter structure consists of five unit cells in one direction with notch square ring elements each consists of two lumped capacitors placed on the transverse plane of the rectangular waveguide. To reduce the simulation time in design procedure, split-field update FDTD method is used for the analysis of the unit cell of the analogous infinite frequency selective surface at different oblique incidence of plane waves to predict the FSS performance in the waveguide. As an application, a waveguide filter has been designed to be used in an easy to fabricate and inexpensive S-band band-pass filter. By using lumped capacitors, several undesirable higher order resonance frequencies near the dominant resonance frequency are eliminated and the waveguide filter dimensions are reduced considerably in one direction compared with the analogous waveguide filter without lumped capacitors.
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Citation
Seyed Mohammad Amjadi, and Mohammad Soleimani, "Design of Band-Pass Waveguide Filter Using Frequency Selective Surfaces Loaded with Surface Mount Capacitors Based on Split-Field Update FDTD Method," Progress In Electromagnetics Research B, Vol. 3, 271-281, 2008.
doi:10.2528/PIERB07122402
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