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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2014-08-28
SIW Diplexer Loaded with Complementary Stepped Impedance S-Shaped Resonators
By
Abhishek Sahu,

    Dr. Abhishek Sahu

    Electrical Engineering and Computer Science (EECS) Department

    The University of Toledo

    USA

    Homepage

Mohammad Almalkawi,

    Dr. Mohammad Almalkawi

    Electrical Engineering and Computer Science (EECS) Department

    The University of Toledo

    USA

    Homepage

Vijay K. Devabhaktuni

    Dr. Vijay K. Devabhaktuni

    Electrical Engineering and Computer Science (EECS) Department

    The University of Toledo

    USA

    Homepage

Progress In Electromagnetics Research Letters, Vol. 48, 117-121, 2014
doi:10.2528/PIERL14072702 | Google Scholar

Abstract
In this letter, we present a diplexer implemented on a substrate integrated waveguide (SIW) with stepped impedance complementary S-shaped resonators (CSSRs). The variable frequency response of the stepped impedance concept adjoining SIW technology leads to improved device performance in terms of matching and isolation. Simulated and measured results show input matching, |S11|, better than -15 dB and output isolation, |S32|, below -30 dB for the frequency range 1-4 GHz. Furthermore, CSSRs offer a degree of freedom to design fundamental and higher order frequencies by selectively tuning the geometrical parameters. This simple yet effective approach eliminates the complexity to design diplexers based on complementary split ring resonator (CSRRs).
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Citation
Abhishek Sahu, Mohammad Almalkawi, and Vijay K. Devabhaktuni, "SIW Diplexer Loaded with Complementary Stepped Impedance S-Shaped Resonators," Progress In Electromagnetics Research Letters, Vol. 48, 117-121, 2014.
doi:10.2528/PIERL14072702
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