▎ 摘　　要

NOVELTY - The adjustable absorbers, has a direct current power source (1) and a frequency selective surface (3), a dielectric substrate (4) and a metal bottom plate (2) which are sequentially stacked from top to bottom. Each of the upper and lower ends of each dumbbell shaped unit is provided with a graphene film (32) sandwich a metal patch (31). All the single dumbbell units in the whole row are connected in series and the ends of horizontal thin metal wires (34) running through the whole row in each row are connected to the same electrode feed. USE - Adjustable absorbers based on work of graphene and super-surface bandwidth. ADVANTAGE - The structure is simple, better performance of using the metal patch with the graphene film interlayer to tune the absorption bandwidth more conveniently. The metal substrate with high conductivity reduces the electromagnetic wave transmission of the wave absorber, and suitable for electromagnetic interference and modern communication system. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of adjustable absorbers based on work of graphene and super-surface bandwidth. Direct current power source (1) Metal bottom plate (2) Frequency selective surface (3) Dielectric substrate (4) Metal patch (31) Graphene film (32) Horizontal thin metal wire (34)