▎ 摘　　要

NOVELTY - This utility new type claims a one waveguide path selector is based on graphene, comprising selector main body, this selector is one cuboid, and this selector is made by a material of graphene, graphene semiconductor material is made of a continuous coating and interruption groove layer, and electric conduction material is made of a substrate layer, a step body, fill layer and the concave step body compose. This utility new type use the graphene with a voltage adjustable characteristic of a one a waveguide path selector so as to continuously through a change to a SPP wave in connection and disconnection of different area a graphite, a waveguide path so as to select. Besides, this utility new type also use the imaginary part of electrical conductivity of graphene is greater than zero would show after the metallic, and electromagnetic wave entering into a does not produce a large attenuation characteristic, a SPP wave transmitting in waveguide path selector is a relative far distance.