Reflective multi-functional polarization converter based on anisotropic metasurfaces

Abstract

In this paper, a new multi-functional reflective polarization converter (RPC) is proposed based on an anisotropic metasurface. The metasurface is composed of the periodic array of square patches with truncated corners and a solid ground plane. The RPC is designed based on a single-layer anisotropic metasurface. The reflected magnitude and phase of the anisotropic metasurface are different in two orthogonal directions. Therefore, The incident linear polarization can be converted to the orthogonal linear polarization, right- or left-hand circular polarizations reflected wave in the different frequency bands. The simulated results agree well with theoretical design.