Design of the metasurface based on solid-state plasma for beam scanning

In order to realize dynamic scanning of beam in space, matasurface based solid plasma was designed. Phase compensation of 0°~360° was realized by splicing phase curve of array element of dielectric substrate with different thickness. The mapping between matasurface parameter and phase compensation angle was established by numerical interpolation. The results show that the reflecting main beam direction of the metasurface is θ=15°, θ=25° and θ=30° respectively. The calculated results are in agreement with the designed results. Array elements are reconstructed by changing the excitation region of solid plasma, and dynamic scanning of the beam in the space is achieved in the space of θ=15°, θ=25° and θ=30°. The universal design method of reflective matasurface array unit reduces the design difficulty of array unit, and realizes the design of space beam scanning matasurface by the tunable characteristic of solid plasma.