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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2023-03-30
Low-Cost Substrate Integrated Waveguide Equalizer Based on the Indium Tin Oxides Conductive Film
By
Jun Dong,

    Dr. Jun Dong

    College of Information Science and Engineering

    Hunan Normal University

    China

    Homepage

Fan Yin,

    Dr. Fan Yin

    College of Information Science and Engineering

    Hunan Normal University

    China

    Homepage

Taixing Jiang,

    Dr. Taixing Jiang

    College of Information Science and Engineering

    Hunan Normal University

    China

    Homepage

Xiang Zhong,

    Dr. Xiang Zhong

    College of Information Science and Engineering

    Hunan Normal University

    China

    Homepage

Yang Yang,

    Dr. Yang Yang

    School of Electronic Science and Engineering

    University of Electronic Science and Technology of China

    China

    Homepage

Hao Peng

    Prof. Hao Peng

    School of Electronic Science and Engineering

    University of Electronic Science and Technology of China

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 110, 21-28, 2023
doi:10.2528/PIERL23013001 | Google Scholar

Abstract
A low-cost and mechanical reconfigurable substrate integrate waveguide (SIW) equalizer is presented and studied in this work. Different from the previous SIW equalizers using Tantalum Nitride (TaN) or absorbing material as the resistive element, the indium tin oxides (ITO) are introduced into SIW equalizer. The absorbing material will deform under uneven pressure due to the structural softness of material, resulting in instable equalizing values. Compared with the absorbing material, ITO provides more structural stability, excellent high frequency characteristic, and can be easily integrated with traditional printed circuit board (PCB). Furthermore, an equalizer with reconfigurable equalizing values can be realized by adjusting ITO materials with different impedances. A SIW equalizer based on the ITO Conductive Film, operating from 26 to 40 GHz, has been designed, fabricated and experimentally verified. For measurement results, the return losses are better than -17.4 dB with 3, 6, and 10 dB equalizing values respectively over the entire Ka-band, and the insertion losses at the frequency point of 40 GHz are -2.89 dB, -4.80 dB, and -7.37 dB, respectively. The proposed equalizer presents the advantages of mechanical reconfigurable, low cost, and high stability. In addition, ITO Conductive Film is a good candidate for the design of high millimeter-wave band equalizer.
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Citation
Jun Dong, Fan Yin, Taixing Jiang, Xiang Zhong, Yang Yang, and Hao Peng, "Low-Cost Substrate Integrated Waveguide Equalizer Based on the Indium Tin Oxides Conductive Film," Progress In Electromagnetics Research Letters, Vol. 110, 21-28, 2023.
doi:10.2528/PIERL23013001
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