▎ 摘　　要

NOVELTY - The reconfigurable terahertz coded metasurface planar mirror dynamically realizes different encoding sequence states. The method of combining encoding sequences with encoding metasurface plane mirrors achieves the effect of spatially adjustable focus. The graphene Fermi level is applied to form special coding sequence. The unit structure is provided with a metal-graphene layer (1), a medium layer (2) and a metal layer (3) from up to down. The metal-graphene layer includes an elliptical split ring resonator. The material of the metal-graphene layer is gold. The graphene of the intermediate dielectric layer is a cyclic olefin copolymer (COC). The material of the metal layer is gold. USE - Reconfigurable terahertz coded metasurface planar mirror with adjustable focus space. ADVANTAGE - The terahertz coding super-surface plane reflector structure is simple, uniform, the opening structure design enhances the action response of the electromagnetic wave and structure, by adjusting the graphene Fermi level can satisfy different coding unit of the reflection phase requirement is 0 degrees, 90 degrees, 180 degrees, 270 degrees, so as to satisfy the design requirement of the super surface reflector. The y-polarized electromagnetic wave can be focused on the focal plane. At the same time, the focus can be adjusted to the pre-set position by using the constructed coding sequence. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a reconfigurable terahertz coding super-surface plane reflector.