陈泓玮,曹群生,王毅. 一款基于极化转换超表面的双频RCS缩减Fabry-Perot天线[J]. 电波科学学报,2022,37(2):288-295 + 313. DOI: 10.12265/j.cjors.2021029
      引用本文: 陈泓玮,曹群生,王毅. 一款基于极化转换超表面的双频RCS缩减Fabry-Perot天线[J]. 电波科学学报,2022,37(2):288-295 + 313. DOI: 10.12265/j.cjors.2021029
      CHEN H W, CAO Q S, WANG Y. A dual-band RCS reduction of Fabry-Perot antenna based on polarization conversion metasurface[J]. Chinese journal of radio science,2022,37(2):288-295 + 313. (in Chinese). DOI: 10.12265/j.cjors.2021029
      Citation: CHEN H W, CAO Q S, WANG Y. A dual-band RCS reduction of Fabry-Perot antenna based on polarization conversion metasurface[J]. Chinese journal of radio science,2022,37(2):288-295 + 313. (in Chinese). DOI: 10.12265/j.cjors.2021029

      一款基于极化转换超表面的双频RCS缩减Fabry-Perot天线

      A dual-band RCS reduction of Fabry-Perot antenna based on polarization conversion metasurface

      • 摘要: 雷达散射截面(radar cross section, RCS)是雷达探测技术、隐身和反隐身技术中表征目标可识别特性的重要参数. 对隐身平台RCS的贡献来自平台上的天线,因此降低天线系统的RCS成为目前隐身技术中的一个关键技术课题,当前的解决方案在降低RCS的同时会影响天线的辐射性能. 本文将极化转换超表面(polarization conversion metasurfaces, PCM)和法布里-珀罗(Fabry-Perot)谐振腔天线有效结合,设计了一款双频带RCS缩减和增益提升天线. 结果表明,该天线在4~9 GHz和12~15 GHz两个频段的RCS最大降低了15 dBsm. 此外,Fabry-Perot天线的增益相较馈源天线提高了7 dBi. 说明提出的天线具有增益高、RCS低的特点,可为Fabry-Perot谐振腔天线的设计提供新颖的思路.

         

        Abstract: Radar cross section (RCS) is an important parameter of representing target recognition in radar detection technology, stealth and anti-stealth technology. As the antenna has a crucial impact on RCS, reducing the RCS of antenna system has become a key research subject in stealth technology, but the current scheme affect the radiation performance of the antenna while reducing the RCS. In this paper, a dual-band RCS reduction and gain enhancement antenna is designed by combining polarization conversion metasurfaces with Fabry-Perot resonator antenna. The simulation results show that the maximum RCS reduction of the antenna is 15 dBsm at 4−9 GHz and 12−15 GHz. In addition, the gain of Fabry-Perot antenna is 7 dBi higher than that of feed antenna. The antenna has the characteristics of high gain and low RCS, which provides a novel way for the design of Fabry-Perot resonator antenna.

         

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