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RCS-reduced patch antenna with wide frequency tuning range based on absorbing metasurface

Author

Listed:
  • Yinlong Kuang
  • Lianwens Deng
  • Gaoyang Zhu
  • Hongjian Li
  • Shengxiang Huang

Abstract

A frequency-tunable patch antenna with reduced radar cross section (RCS) based on absorbing metamaterial is proposed. By controlling the external voltage of the varactor diodes, the working frequency of the patch can be adjusted. Through an investigation of the composite structure of the patch and absorbing metamaterial, RCS reduction is achieved over the entire wide tunable frequency range of the antenna. Measured results illustrate that the proposed patch antenna can dynamically operate in the range from 2.28 to 3.6 GHz with a gain variation of 7.1–8.7 dBi. Meanwhile, the RCS can be reduced by at least 7 dB and up to 20 dB in a fractional bandwidth of 44.9% of the antenna under a normal incidence. In comparison to conventional RCS-reduced antennas, the proposed one features a broader frequency tuning range and has potential value in wideband radar systems under complex electromagnetic interference environments.

Suggested Citation

  • Yinlong Kuang & Lianwens Deng & Gaoyang Zhu & Hongjian Li & Shengxiang Huang, 2024. "RCS-reduced patch antenna with wide frequency tuning range based on absorbing metasurface," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 38(8), pages 898-912, May.
    • Handle: RePEc:taf:tewaxx:v:38:y:2024:i:8:p:898-912
    DOI: 10.1080/09205071.2024.2345680
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