Impact of the angle of arrival on the response of a multi-resonant frequency selective surface

摘要

In this paper, radar cross section (RCS) in square meters was evaluated for multi-resonant Frequency Selective Surfaces (FSS) with loop type cells (circle and square) for different values of spherical angles theta, corresponding to peak values of resonant frequency, using CST Microwave Studio software. The unit cell geometry was set as variable, because the desired target values for resonant frequency were 2GHz and 2.5GHz, corresponding to first and second concentric loops. Based on the results obtained, comparison was discussed. 3D views are presented for each case.