▎ 摘　　要

NOVELTY - The surface has a designed ultra-surface unit cell structure provided with an upper layer, a middle layer i.e. flexible PVC medium layer and a bottom layer i.e. is square metal copper bottom plate. The upper layer i.e. pattern layer, provided with a metal copper patch to cut off a diagonal quarter circle and quarter round graphene patches. The quarter round graphene patches are respectively located at opposite corners of an empty position for forming an included angle of 45 degrees with respect to a y-axis by a symmetry axis of the pattern layer, and a designed polarization conversion meta-surface is obtained. USE - Flexible dynamic adjustable line round dual-polarization conversion ultra-surface for use in microwave communication, microscopic imaging and electromagnetic wave control fields. ADVANTAGE - The surface can realize line-circle dual polarization conversion simultaneously in a same structure through model simulation, structural parameter optimization and graphene dynamic regulation of a metasurface unit cell structure. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a pattern layer of a designed polarization conversion ultra-surface unit cell structure.