用谱域法分析含介质衬底的频率选择表面

Spectral-Domain Method for Analysing the Frequency-Selective Surface with Dielectric Substrate

本文用谱域Galerkin法分析分层均匀媒质中的频率选择表面。由于选用了存在Fourier变择换解析表达式的电流基函数集,简化了求解过程。为“十”形贴片阵的了频率选择表面所计算的反射系数频响特性,与文献提供的模式法计算结果符合得很好。文中给出了不同介质衬底厚度时的计算结果并进行了讨际。

The Frequency-Selective Surface (FSS) with multilayered dielectric substrate and embedded patchs are analysed using Galerkin technique in the spectral domain. The solving procedure are reduced by means of a set of current bases which Fourier transformation can be expressed analytically. The calculated frequency response of reflection coefficient from a FSS constructed by the array of crossdipoles with monolayered substrate is good agreement with the result of modesanalysis presented by the Reference. The data for the FSS with different thickness of the substrate are provided and discussed.