▎ 摘　　要

NOVELTY - The utility model claims a graphene adjustable low-pass filter. It comprises a substrate, polysilicon, dielectric layer, graphene strip; upper layer of the base layer is provided with silicon group, silicon group are completely the same is composed of seven geometrical shape and size of the rectangular polysilicon are arranged in turn, polysilicon layer, the upper surface of the upper layer is the dielectric geometric central graphene strip is located on the medium layer. adjusting a graphene layer by adding the bias voltage of Fermi level, to achieve the tuning of the tera-hertz wave. The utility model has good filtering performance, low insertion loss, novel structure, convenient integration and so on.