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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2019-10-27
Compact Single-Layer Balanced Eighth-Mode Substrate Integrated Waveguide Bandpass Filter with High Selectivity
By
Xiao-Bang Ji,

    Dr. Xiao-Bang Ji

    School of Electrical Engineering

    Henan Polytechnic

    China

    Homepage

Qing Liu,

    Dr. Qing Liu

    Department of Electromagnetic Wave and Antenna Propagation

    National Digital Switching System Engineering & Technological Research Center

    China

    Homepage

Mi Yang

    Dr. Mi Yang

    Department of Electromagnetic Wave and Antenna Propagation

    China Huayin Ordnance Test Center

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 87, 131-136, 2019
doi:10.2528/PIERL19071501 | Google Scholar

Abstract
This letter proposes a compact single-layer balanced bandpass filter (BPF), which is realized by a new arrangement of eighth-mode substrate integrated waveguide (EMSIW) cavities. Under differential-mode (DM) operation, the half bisection topology of the proposed EMSIW filter can be equivalent to a quadruplet scheme based on four coupled EMSIW cavities. The negative cross coupling can be easily realized by the nature of the fringe electric fields of opened ends of EMSIW cavities. For the demonstration, a balanced EMSIW filter with the operating frequency at 2.4 GHz is designed, fabricated, and measured.
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Citation
Xiao-Bang Ji, Qing Liu, and Mi Yang, "Compact Single-Layer Balanced Eighth-Mode Substrate Integrated Waveguide Bandpass Filter with High Selectivity," Progress In Electromagnetics Research Letters, Vol. 87, 131-136, 2019.
doi:10.2528/PIERL19071501
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