Broadband Beam Steering Based on Programmable VO2 Metasurface at Terahertz Frequencies

We demonstrate broadband beam steering based on a programmable terahertz (THz) metasurface integrated vanadium dioxide (VO
2
). The deflection angle of THz beams can be manipulated dynamically with a broad bandwidth of 14 GHz in 0.218-0.232 THz frequencies. Moreover, by changing coding sequences, the THz beams are continuously diffracted to different deflection angles, where the maximum deflection angle is 53°. Our work provides a possible method for the dynamic manipulation of the THz beams deflection in 6G wireless communication.