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Active differential reflection coefficient analysis of differentially-fed antenna array

Author

Listed:
  • Guanghui Xu
  • Wei Wang
  • Hong-Li Peng
  • Zhi-Xiang Huang
  • Yaoping Zhang
  • Wen-Yan Yin

Abstract

In this paper, a definition for the active differential reflection coefficient of the differentially-fed antenna array is proposed. Each antenna is fed by the differential port with the equal-amplitude anti-phase signal input. According to the active reflection coefficient of the conventional single-ended antenna array, the active differential reflection coefficient definition of the differential antenna array is given and analyzed. It is derived that the active differential reflection coefficient of the differential port m is half of the active reflection coefficient sum for the single-ended port m+ and m−. In addition, the active differential impedance expression is also given. To verify the active differential reflection coefficient, a differential three-element microstrip patch antenna array was designed, fabricated, and measured. The experimental results validate the proposed theoretical analysis. This work will provide a new insight into the differential antenna array.

Suggested Citation

  • Guanghui Xu & Wei Wang & Hong-Li Peng & Zhi-Xiang Huang & Yaoping Zhang & Wen-Yan Yin, 2024. "Active differential reflection coefficient analysis of differentially-fed antenna array," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 38(17), pages 1979-1990, November.
    • Handle: RePEc:taf:tewaxx:v:38:y:2024:i:17:p:1979-1990
    DOI: 10.1080/09205071.2024.2412568
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