In this letter, a polarization conversion metasurface antenna (PCMA) array for stealth design method is proposed. The array is composed of polarization conversion metasurface (PCM) subarray and their mirror subarray, which simultaneously plays the role of antenna element and PCM. So that, a certain phase cancellation can be produced between subarray and mirror one. The backward scattering is canceled while the radiation performance is maintained. This method has the characteristics of simplicity, low profile and easy to be implemented. Average area occupied by each antenna element can be reduced to 0.15 ${\lambda }_0^2$. Simulation and measured results show that the maximum reduction of monostatic RCS of aforementioned PCMA is 16.3 dB in 8.2–13.6 GHz band, and the relative bandwidth of effective RCS reduction (more than 10 dB) reaches 34%, which verifies the effectiveness of the polarization cancellation design method based on the integration of array elements and PCM.

中文翻译：

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极化转换超表面天线阵列的隐身设计

在这封信中，提出了一种用于隐身设计方法的极化转换超表面天线（PCMA）阵列。该阵列由偏振转换超表面（PCM）子阵列及其镜像子阵列组成，同时起到天线元和PCM的作用。这样子阵列和反射镜之间可以产生一定的相位抵消。在保持辐射性能的同时消除了后向散射。该方法具有简单、低调、易于实施的特点。每个天线单元的平均占用面积可减少到0.15${\lambda }_0^2$. 仿真和实测结果表明，上述PCMA在8.2-13.6 GHz频段的单站RCS最大降低为16.3 dB，有效RCS降低的相对带宽（大于10 dB）达到34%，验证了极化的有效性基于阵元与PCM集成的对消设计方法[J].