“十”字环形缝隙阵频率选择表面的频率特性研究

本文用模匹配法分析了任意角度平面波入射时分析一般单元缝隙阵频率选择表面的频率响应性。这里考虑的ＦＳＳ是一零厚度无限大平面阵。问题的 解是以Ｆｌｏｑｕｅｔ 定理为基础。通过匹配ＦＳＳ表面的切向场分量获得的。

Performance of Cross-Loop Slot Arrays as Frequency-Selective Surfaces

By using modal matching, frequency response of frequency selective surfaces (FSS) with apertures is studied for zero thickness and infinite planar conducting sheet. The excitation is assumed to be a plane wave incident at any arbitrary angle. Based on Floquet theory,the solution is obtained by matching the tangential field components at the surface of the screen. Both single and double-FSS configurations are studied and the effects of multilayered dielectric substrate are taken into account. Then,the typical results of the influence of the lattice,element configurations and incidence angle on the performance of FSS consisting of arrays of cross-loop slots are summarized.