Influence of the Substrate Material on the Radar Cross Section of Square Loop Unit Cells for Frequency Selective Surfaces

Abstract

In this paper, we analyze the impact of the substrate material on the Radar Cross Section (RCS) of multi-resonant square loop unit cells. A FSS cell with resonance frequencies at 2GHz, 2.5GHz and 3GHz was simulated for different values of the dielectric permittivity, corresponding to several types of substrate, and materials that yield optimal results were identified.