Characterization of novel open notched quasi-square metallic ring FSS using WCIP method for multiband applications

ABSTRACT A novel notched quasi‐square open metallic ring frequency selective surfaces (FSS) with single layer for triband applications is proposed. By the use of the wave concept iterative process (WCIP), the resonant characteristics of the proposed FSS are determined. The presented FSS shows three resonant frequencies when the incident wave is x‐polarized and one resonant frequency when the source is polarized in the orthogonal direction. A variation in the notched quasi‐square metallic ring dimensions allows a fine tuning in the FSS resonant frequencies to give raise to a tuned and enhanced bandwidth. Four FSS structures are manufactured and characterized. A good agreement is obtained when the WCIP results are compared with the simulations of COMSOL Multiphysics software and experiment. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2071–2075, 2016