In this paper, the electromagnetic field scattered by several 2D scatterers of any shape is calculated rigorously from the boundary integral equations discretized by the method of moments with the point matching method and pulse basis functions. In addition, the resulting linear system is efficiently solved from the domain decomposition method named the characteristic basis function method. To accelerate the computation of the primary basis functions, which requires solving sublinear systems, the Kirchoff approximation is applied for metallic and dielectric objects. The efficiency of the method is tested on several applications met in practice: stack of rough interfaces separating homogeneous media, collection of metallic and dielectric elliptical cylinders, collection of coated elliptical cylinders, and a combination of the previous scenarios.

中文翻译：

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矩量法结合特征基函数法和基尔霍夫近似的椭圆柱填充粗糙层散射

本文通过矩量法离散化的边界积分方程，结合点匹配法和脉冲基函数，严格计算了任意形状的多个二维散射体所散射的电磁场。此外，由此产生的线性系统可以通过称为特征基函数方法的域分解方法有效地求解。为了加速主要基函数的计算，这需要求解次线性系统，基尔霍夫近似适用于金属和介电物体。该方法的效率在实践中遇到的几个应用程序中进行了测试：分离均质介质的粗糙界面堆叠、金属和介电椭圆圆柱体的收集、涂层椭圆圆柱体的收集以及先前场景的组合。