标题： 基于静态被动EMS的多功能极化覆盖控制 显示英文标题

标题： Multi-Functional Polarization-Based Coverage Control through Static Passive EMSs

摘要： 一种创新的多功能静态被动电磁皮肤（SP-EMS）解决方案被提出，以在反射状态下同时支持两个独立的波操纵功能，当由两个在同一频率下工作但处于不同极化状态的电磁源照射时，仅使用EMS孔径上的单一元原子排列。 为此，首先设计了一个简单的参考元原子，以实现对局部反射张量每个极化分量的精确和独立控制。 随后，通过解决一个全局优化问题，进行了多极化（MP）SP-EMSs（MP-SP-EMSs）的宏观尺度合成，其中使用了一种定制版本的系统设计（SbD）技术来最小化一个成本函数，该成本函数数学编码了每个极化分别的要求。 报告了一组数值和实验测试的代表性结果，以评估基于极化多样性的多功能EMS的可行性，以及所提出的MP-SP-EMSs合成方法的有效性和鲁棒性。 显示英文摘要

摘要： An innovative multi-functional static-passive electromagnetic skin (SP-EMS) solution is proposed to simultaneously support, in reflection, two independent wave-manipulation functionalities with a single meta-atoms arrangement on the EMS aperture when illuminated by two EM sources operating at the same frequency, but working in different polarization states. Towards this end, a simple reference meta-atom is designed first to enable an accurate and independent control of each polarization component of the local reflection tensor. Successively, the macro-scale synthesis of multi-polarization (MP) SP-EMSs (MP-SP-EMSs) is carried out by solving a global optimization problem where a cost function, which mathematically codes separate requirements for each polarization, is minimized with a customized version of the system-by-design (SbD) technique. Representative results from a set of numerical and experimental tests are reported to assess the feasibility of a multi-function EMS based on polarization diversity as well as the effectiveness and the robustness of the proposed method for the synthesis of MP-SP-EMSs.