An intelligent radome that can realize asymmetric propagation of electromagnetic (EM) wave and energy isolation is presented and investigated in this letter. The radome is constructed with multilayer composites. The whole structure mainly consists of a broadband polarization-sensitive polarization converter (PC) and a frequency selective rasorber (FSR) with p-i-n diodes embedded. Among them, the function of PC is to make the EM waves transmit asymmetrically, whereas the FSR loaded with diodes can absorb incident high-power waves, which acts as an energy-selective surface. Thus, the radome can realize both asymmetric transmission of EM wave and EM shielding flexibly. The fabricated structure with 7 × 7 unit cells is experimentally demonstrated using two different measurement methods after full-wave simulation and optimization. The radome has the potential application in EM stealth and high-power EM waves (HPEMWs) shielding, considering the distinctive characteristic of self-actuation.

中文翻译：

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多层复合材料智能天线罩设计实现电磁波非对称传输和能量隔离

本文介绍并研究了一种可以实现电磁波非对称传播和能量隔离的智能天线罩。天线罩由多层复合材料制成。整个结构主要由宽带偏振敏感偏振转换器（PC）和嵌入pin二极管的频率选择吸收器（FSR）组成。其中，PC的作用是使电磁波不对称传输，而装有二极管的FSR可以吸收入射的高功率波，起到能量选择面的作用。因此，天线罩可以灵活地实现电磁波的非对称传输和电磁屏蔽。在全波模拟和优化后，使用两种不同的测量方法对具有 7 × 7 晶胞的制造结构进行了实验证明。