▎ 摘　　要

NOVELTY - The antenna has a medium substrate (1) whose back part is provided with a grounding plate (2). A front surface of the medium substrate is provided with a radiation unit (3), a filter circuit (4), a feeding network (5) and two radio frequency input ports (6). The feeding network is provided with a diode chip (7). The radiation unit is provided with an improved circular monopole antenna. Two sides of the circular monopole antenna are provided with two rectangular grooves and two branches. The feeding network is formed as a micro-strip line structure. The radio frequency input ports are respectively arranged on two parts of the micro-strip line structure. USE - Graphene frequency reconfigurable filter antenna for use in a fifth generation (5G) mobile communication system and an ultra-wide band system. ADVANTAGE - The conductive graphene of the macroscopic film is formed with a conductor material design reconfigurable filter antenna with light, corrosion resistance, environment-friendly characteristics filter antenna, and has better characteristics and harmonic suppression capability. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a graphene frequency reconfigurable filter antenna. 1Dielectric substrate 3Radiation unit 4Filter circuit 5Feeding network 6Radio frequency input port 7Diode chip