In this paper, some generalizations of electromagnetic scattering problems by elementary shapes are presented. In particular, the aim of the paper is to provide solutions to the scattering problem by multiple objects with simple shapes, either in concentric configuration or arbitrarily distributed in the space. The vector harmonics, representing the fields, and their properties are applied in order to solve five different problems: the electromagnetic scattering by an infinitely long circular stratified cylinder, by a multilayered sphere, by an ensemble of parallel cylinders, by an ensemble of multi-spheres, and ultimately by a sphere embedded in a circular cylinder. Numerical results in particularly important configurations are shown.

中文翻译：

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电磁散射简介，第二部分：教程。

本文提出了一些基本形状的电磁散射问题的概括。特别地，本文的目的是提供具有多个简单形状的物体的散射问题的解决方案，这些物体具有同心构造或任意分布在空间中。应用代表场的矢量谐波及其特性，以解决五个不同的问题：无限长的圆形分层圆柱体，多层球体，平行圆柱体的集合体，多重圆柱体的集合体的电磁散射球体，最终由嵌入圆柱体中的球体组成。显示了特别重要的配置中的数值结果。