One method of reconfigurable metasurfaces design for terahertz

The 6G wireless network envisages the realization of high-speed data rate, ultra-low delay, Wireless interconnection of everything and high spectrum and energy utilization efficiency. Terahertz is one of the key technologies of 6G communication. As the difficult problem of terahertz communication, the research on reconfigurable metasurfaces technology has great significance and value. In this paper, a 1-bit phase reconfigurable metasurface based on Schottky diode is proposed. By controlling the bias voltage of Schottky diode, the metasurface unit cell can be controlled to switch between ‘0’ and ‘1’ working states. Through simulation analysis, the designed reconfigurable metasurface unit cell can achieve a reflection amplitude greater than -1dB in both ‘0’ and ‘1’ states in the frequency band of 203GHz~230GHz, The reflection phase has a change of 180°±20°. The array simulation is carried out to evaluate the working performance of metasurface. By reasonably designing the working state of the unit cells on the array surface, the beam scanning can be realized. The proposed terahertz reconfigurable metasurface provides a new idea for the study of terahertz reconfigurable metasurface and has important application value in the future 6G terahertz communication and other fields.