Patent ID: 11962088
Assignee: ANHUI UNIVERSITY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. The dual-mode OAM convergence metasurface preparation method according to claim 6, wherein the determining, by optimization, optimal parameters corresponding to various bit states of each of 2n (2n−1) anisotropic cell structures in two polarization directions based on a phase requirement of OAM for the anisotropic cell structures specifically comprises:
conducting, by three-dimensional electromagnetic field simulation software CST, rough simulation on each of the anisotropic cell structures in two polarization directions to obtain a first rough phase value;
conducting fine-tuning based on the first rough phase value until a first precise phase value is reached; and
taking dimension parameters corresponding to the first precise phase value as optimal parameters of the anisotropic cell structure.