Design of A Novel Frequency Selective Surface based on Three-Dimensional Structure

This paper proposes a novel frequency selective surface based on three-dimensional structure, which consists of the planar periodic hexagonal ring gap structure and three-dimensional structure with gas printed on it. The proposed structure can achieve switchable transparent/reflective states, and the transparent state can provide high transmittance and cutoff state outside the passband, it is advantageous for application in complex electromagnetic environment