Beam-steering multi-layer metasurface at 35GHz

The coaxial annular aperture structure is applied in this paper to construct multi-layer phase-gradient metasurfaces with high transmission efficiency realizing anonymous beam steering at 35GHz. Simulation results confirm that normally incident plane wave is successfully refracted by 19° and 60°, which are in good agreement with the theoretical design by the generalized Snell's law.