▎ 摘　　要

NOVELTY - The utility model claims a graphene-based double-frequency terahertz absorber. it comprises a base metal layer (1), dielectric layer (2), the graphene layer (3), metal ring layer (4), the upper layer of a base metal layer (1) is located at the upper layer of the lower layer, the base metal layer (1) is dielectric layer (2), medium layer (2) is a graphene layer (3), the upper layer of the graphene layer (3) is a metal ring layer (4) and the geometrical centre of the graphene layer (3) is the centre of the absorber is also the centre of the metal ring layer (4). The utility model has double frequency absorption, simple structure, small size and easy integration.