A 1-Bit Wideband Beam Reconfigurable Metasurface Reflectarray Antenna

Abstract

In this paper, an electrically controllable wideband 1-Bit beam reconfigurable metasurface reflectarray antenna is designed. The antenna is designed based on 1-Bit reflection coding element. The designed antenna has the advantages of wide bandwidth, low reflection loss and simple unit structure. The bandwidth of the antenna is 11~14GHz, the relative bandwidth is 24%, and the reflection loss of the unit is within −1dB, that is, the reflection coefficient is greater than 0.9. The reflective array antenna can realize beam scanning of −30 °~+30 °, which can better realize beam switching.