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Ultra-wideband RCS reduction realized by a coding diffusion metasurface

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Listed:
  • Baoqin Lin
  • Wenzhun Huang
  • Jianxin Guo
  • Zuliang Wang
  • Kaibo Si
  • Rui Zhu

Abstract

In this study, a coding diffusion metasurface (CDMS) based on a circular-polarization (CP)-maintaining metasurface is proposed for radar cross-section (RCS) reduction. The CP-maintaining metasurface can achieve ultra-wideband CP-maintaining reflection, and its main reflection phase under CP incidence can be adjusted at will by the Pancharatnam-Berry phase generated by the rotation of its unit cell, so it can be used to design CDMS. Thus, based on the CP-maintaining metasurface, the 2-bit CDMS is proposed. The simulated and measured results demonstrate that the CDMS can achieve highly effective and ultra-wideband RCS reduction under arbitrarily polarized incidences, compared with a pure metallic plate of the same size, its RCS can be reduced by more than 10 dB under normal incidence in the ultra-wide frequency band of 7.1-33.6 GHz with a relative bandwidth of 130.2%; moreover, when the incident angle is increased to 40°, an ultra-wideband RCS reduction can still be achieved.

Suggested Citation

  • Baoqin Lin & Wenzhun Huang & Jianxin Guo & Zuliang Wang & Kaibo Si & Rui Zhu, 2024. "Ultra-wideband RCS reduction realized by a coding diffusion metasurface," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 38(7), pages 778-789, May.
    • Handle: RePEc:taf:tewaxx:v:38:y:2024:i:7:p:778-789
    DOI: 10.1080/09205071.2024.2333989
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