Metasurface Antenna for Anomalous Reflection and Circularly Polarized Radiation

This paper demonstrates a metasurface antenna to achieve anomalous reflection and circularly polarized radiation. The metasurface which consists of periodic rectangular patches provides anisotropic reflection phases when illuminated by plane waves, while it can transform linearly-polarized radiation into circularly polarized form when excited by a source under the metasurface. 16 identical units compose a 4×4 array to achieve anomalous reflection. Numerical results confirm the abilities of the metasurface antenna in scattering control and high gain circularly polarized radiation simultaneously.