The design and optimization of Reconfigurable Intelligent Surfaces (RISs) are key challenges for future wireless communication systems. RISs are devices that can manipulate electromagnetic (EM) waves in a programmable way, thus enhancing the performance and efficiency of wireless links. To achieve this goal, it is essential to have reliable EM models that can capture the behavior of RISs in different scenarios. This work demonstrates that the Partial Elements Equivalent Circuit (PEEC) method is a powerful tool for EM analysis of RIS-aided wireless links. It might also be integrated with optimization algorithms in order to optimize wireless communication networks.

翻译：可重构智能表面（RISs）的设计与优化是未来无线通信系统的关键挑战。RISs是一种能够以可编程方式操控电磁（EM）波的器件，从而提升无线链路的性能与效率。为实现这一目标，必须建立能够捕捉RISs在不同场景下行为的可靠电磁模型。本研究证明，部分单元等效电路（PEEC）方法是分析RIS辅助无线链路电磁特性的强有力工具，并可进一步与优化算法相结合，以实现无线通信网络的优化。