▎ 摘　　要

NOVELTY - The antenna has a dipole antenna radiation unit arranged on an upper surface of a substrate for emitting antenna radiation signal. Upper and lower surfaces of a graphene sheet are provided with direct current voltage unit. A metal sheet is arranged between two adjacent graphene sheets to connect the two adjacent graphene sheets by adjusting chemical potentials of the two adjacent graphene sheets, where distribution of an internal electromagnetic field of the metal sheet between the two adjacent graphene sheets is changed to adjust a direction of the antenna radiation signal. USE - Directional diagram reconfigurable antenna for a communication device (claimed). ADVANTAGE - The antenna improves communication efficiency. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a directional diagram reconfigurable antenna.