ABSTRACT This article presents a stack of metal/dielectric lamination absorber shaped as a doubly periodic array of truncated prism. We show how the EM absorption characteristics can be modified through simple changes to the geometric structure of the unit cell. The resultant absorber can be designed to exhibit broadband performance, i.e. 10 dB return loss from 8.2 to 14.2 GHz. We then discuss the angular TE, TM incidence absorption characteristics of a doubly periodic arrangement of square truncated prism array. Through EM simulation, we demonstrate the possibility for optical imaging through the absorber by introducing perforations into it. Finally, we show how to use a waveguide simulator method to experimentally verify the absorption performance of the basic structure.

中文翻译：

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PCB棱镜吸收器设计和表征

摘要 本文提出了一堆金属/电介质层压吸收器，形状为截棱柱的双周期阵列。我们展示了如何通过简单改变晶胞的几何结构来修改 EM 吸收特性。由此产生的吸收器可以设计为表现出宽带性能，即从 8.2 到 14.2 GHz 的 10 dB 回波损耗。然后我们讨论了双周期排列的方形截头棱镜阵列的角 TE、TM 入射吸收特性。通过 EM 模拟，我们通过在吸收体中引入穿孔来证明通过吸收体进行光学成像的可能性。最后，我们展示了如何使用波导模拟器方法来实验验证基本结构的吸收性能。