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An FSS-backed reflective polarization conversion meta-surface for radar stealth1
Photonics and Nanostructures - Fundamentals and Applications ( IF 2.7 ) Pub Date : 2020-09-08 , DOI: 10.1016/j.photonics.2020.100846
Mingbao Yan , Jiafu Wang , Weiyu Wang , Cuilian Xu , Hongya Chen , Wenjie Wang , Lin Zheng , Shaobo Qu

In this paper, a new technique is proposed for designing stealthy radome, especially for normal incoming wave stealth. The proposed structure is composed of a band-pass FSS and one layer of polarization conversion arrays which are separated by a foam layer. An FSS-backed polarization conversion meta-surface (PCM) can be obtained. The FSS-backed PCM is capable of providing a second-order transmission window and a wide stealthy band. In the transmission window (4.2∼4.6 GHz), the self-excited communicate electromagnetic wave can pass through freely with its same polarization state. In its stealthy band (7.0∼17.6 GHz), the external incoming wave can be efficiently reflected with its cross-polarized state. Thus, the radome is invisible for a linearly-polarized radar system even the detecting wave is reflected along its incoming direction. The proposed PCM is simulated and experimented. The measured results are in good agreement with the simulated ones. This stealth technique will be significance in the area of naval vessel radomes.



中文翻译:

雷达隐身1的FSS支持的反射偏振转换元表面

本文提出了一种设计隐身天线罩的新技术,特别是对于正常的入射波隐身。提出的结构由带通FSS和一层由泡沫层分隔的偏振转换阵列组成。可以获得FSS支持的偏振转换超表面(PCM)。由FSS支持的PCM能够提供二阶传输窗口和宽隐身频带。在传输窗口(4.2〜4.6 GHz)中,自激通信电磁波可以以相同的极化状态自由通过。在隐身频带(7.0〜17.6 GHz)中,外部入射波可以以其交叉极化状态被有效地反射。因此,即使检测波沿其入射方向反射,对于线性偏振雷达系统而言,天线罩也是不可见的。提出的PCM进行了仿真和实验。测量结果与模拟结果吻合良好。这种隐形技术在海军舰船天线罩领域将具有重要意义。

更新日期:2020-09-08
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