▎ 摘　　要

NOVELTY - The component has a silicon dioxide dielectric layer (1), a graphene array and a metal layer (4) that are arranged on both sides of the silicon dioxide dielectric layer. The graphene array is composed of multiple graphene opening rings, and the metal layer is a lossy metal. An opening graphene is divided into a first opening ring (2) and a second opening ring (3). USE - Component with double-frequency absorption function and PIT modulation function for use in imaging, sensing, communication field and electromagnetic compatibility, stealth material. ADVANTAGE - The component with double-frequency absorption function and PIT modulation function solves the problem of single function of the existing component, realizes the function of terahertz double-narrow-band absorption and transparent window absorption. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the component with double-frequency absorption function and PIT modulation function. 1Silicon dioxide dielectric layer 2first opening ring 3Opening ring two 4Metal layer