Metasurface Based Circularly Polarized Quad-Beam System

This paper presents a metasurface based circularly polarized quad-beam generating system. The system consists of two layers. The bottom layer splits the quasi-spherical incident beam of a MSA into four individual reflected beams in diagonal directions. The top ultra-wide band (UWB) meta-transmit-screen is a linear to circular polarization converter. This screen converts four reflected LP-beams from the bottom surface to CP-beams. Measured and simulated results follow each other. This multi-beam system may find applications in future 5G and IoT devices.