▎ 摘　　要

NOVELTY - The device comprises multiple wave absorbing units from bottom to top in turns is a bottom metal film. A loss dielectric layer and three dart-shaped graphene. The three dart-shaped graphene consists of three layers of graphene medium and medium silicon combination. The bottom metal plate is a gold film with a thickness of 600 nanometers (nm). The loss medium is silicon dioxide with a thickness of 3000 nm. The thickness between the two layers of graphene from bottom to top is 1000 nm. The thickness between the two-three layers is 850 nm. USE - Device used for absorbing broadband terahertz wave based on three dart-shaped graphene. ADVANTAGE - Non-sensitive polarization, good absorbing effect and absorption efficiency is more than the bandwidth of more than 90 percent. DESCRIPTION OF DRAWING(S) - The drawing shows three-dimensional view of device.