Design of a Dual-Band Frequency Selective Surface with Angular Stability

In this paper, a novel dual-band frequency selective surface (FSS) with angular stability is presented for radome application. The FSS is composed of single-layered metallic structures, in which each periodic cell consists of a square loop loaded with novel split-ring resonator (SRR) sub element on the front side of the dielectric slab. As a result, a dual-band FSS operated over Ku-band and Ka-band is designed. Full-wave simulations show that the designed FSS has good angular stability to oblique incidence waves and independently controlled frequency resonances.