▎ 摘　　要

NOVELTY - The utility model claims a nanometer device based on graphene-medium-metal layered structure, the converter comprises the polarization converter composed of multiple polarization of three-dimensional cells, more polarized three-dimensional unit is placed horizontally; and a plurality of polarization on lower surface of three-dimensional cells are on the same horizontal plane, each polarized three-dimensional cells comprises a gold layer on the lowest layer, the middle layer of silicon dioxide isolated layer and uppermost layer of graphene, gold, silicon dioxide isolation layer and graphene layer are orderly fixed from bottom to top. and a graphene layer is provided with multiple punching. The utility model is of improved structure, so that the polarization converter with three working frequency in the working frequency band, polarization at each operating frequency conversion rate is more than 75%, and two work frequencies close to 100, and polarization operating band is tuned.