WCIP method applied to modeling a modified rectangular metallic ring FSS for multiband applications

A modified rectangular metallic ring Frequency Selective Surface (FSS) with single layer for multiband applications is proposed in this article. By using the wave concept iterative process method WCIP, the resonant characteristics of the proposed FSS are derived. This structure is sensitive to polarization of the incident wave. The proposed FSSs elements are composed by development of a basic rectangular metallic ring FSS. The tuning of the ring dimensions allows the adjustment of the FSS resonant frequencies. The results found by the WCIP method and compared with those simulated by COMSOL Multiphysics software and a good agreement is recorded.