▎ 摘　　要

NOVELTY - The antenna has a medium substrate provided with a grounding metal layer. The medium substrate is provided with an annular graphene layer and a metal patch. The metal patch is located at an inner side of the annular graphene layer. The metal patch is uniformly distributed with a feeding port. The feeding port passes through the metal patch, a medium substrate and a grounding metal layer. The medium substrate is round, the radius is 40 millimeters, and the thickness is 1 millimeter. The metal patch is annular, and an inner and outer radiuses are respectively 6.8-16 millimeters. The inner and outer radiuses of the annular graphene layer are respectively 20-40 millimeters. USE - Used as track angular momentum micro-strip antenna using graphene. ADVANTAGE - The antenna has light weight, simple structure, easy processing and only needs to adjust the feeding phase difference to generate stable modal number of orbital angular momentum vortex wave, in addition, by graphene material, the performance is more excellent. The feeding port can reach better impedance matching and energy output, has smaller echo loss. The antenna designed by the antenna has simple structure and easy mode change, and good vortex wave characteristics. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the track angular momentum micro-strip antenna using graphene (Drawing includes non-English language text).