▎ 摘　　要

NOVELTY - The utility model claims a double polarization converter based on graphene DC contact, substrate comprises a metal bottom layer, a silicon layer and silicon dioxide layer, the artificial structure is arrayed on the substrate surface of the unit structure, the unit structure is mutually orthogonal, overlapped with the centre of the transverse H-type graphene arm graphene arm press with metal arm, under the metal arm. longitudinal graphene arm are mutually connected, the transverse metal arms between a central gap, unit structure array on the substrate central line is 10 to 200 unit structure, are the same. H-type graphene arm and arm are symmetrical to longitudinal centre line, a transverse centre line symmetrically up and down. The utility model does not change the structure parameter, changing the bias voltage Vg to realize switching between linear polarization and circular polarization conversion two functions of graphene arm are connected end to end to form DC contact, graphene integrated bias control, simple structure, easy processing and production, conversion efficiency is as high as 99%.