A Novel Tunable Temperature-Controlled VO2 Metasurface for Beam Regulation

In this paper, a novel tunable temperature-controlled vanadium dioxide (VO
2
) metasurface for beam regulation is proposed. The metasurface consists of non-tunable split-ring resonator and tunable VO
2
-metal hybrid structure. Using the generalized Snell's law beam regulation method, the dynamic regulation of the reflected beam direction is realized based on the VO
2
phase transition principle. The simulation results show that under the excitation of vertical incident plane wave at 0.75 THz, the angle of reflected wave can be dynamically switched between 0°, ±15°, and ±30° by changing the state of different phase transition temperatures VO
2
under fixed array through temperature control.