公开(公告)号：US20230231315A1

公开(公告)日：2023-07-20

申请号：US17839876

申请日：2022-06-14

Applicant: Anhui University

Inventor： Zhixiang HUANG ,  Junjie HAN ,  Jie WU

IPC: H01Q15/00 ,  H01Q1/38 ,  H01Q1/50

CPC classification number: H01Q15/0086 ,  H01Q1/38 ,  H01Q1/50

Abstract: The present disclosure provides a dual-mode orbital angular momentum (OAM) convergence base cell array and metasurface preparation method. The base cell array includes 2n(2n-1) anisotropic cell structures and 2n isotropic cell structures. Each of the anisotropic cell structures includes a bottom ground layer, a dielectric substrate layer and a top pattern layer which are disposed in sequence from bottom to top, where each top pattern layer has an axisymmetric H-shaped structure. Each of the isotropic cell structures includes a bottom ground layer, a dielectric substrate layer and a top pattern layer which are disposed in sequence from bottom to top, where each top pattern layer has a square structure.

公开(公告)号：US20230335920A1

公开(公告)日：2023-10-19

申请号：US18145148

申请日：2022-12-22

Applicant: Anhui University

Inventor： Zhixiang HUANG ,  Sixian QIAN ,  Jie WU ,  Kaikun NIU ,  Yi LI ,  Shuyang AN ,  Xingang REN ,  Lixia YANG ,  Xianliang WU

IPC: H01Q21/24 ,  H01Q9/04 ,  H01Q9/06

CPC classification number: H01Q21/24 ,  H01Q9/045 ,  H01Q9/065

Abstract: The present disclosure belongs to the technical field of OAM antennas, and provides a frequency re-configurable OAM antenna in S band and a frequency reconfiguration method. The OAM antenna includes a lower dielectric substrate and multiple array units. Each array unit includes a metal patch, an upper dielectric substrate, an outer loop, an inner loop, a coaxial feeder, four metal probes, and four diodes. In the present disclosure, bias states of all the diodes of each array unit are controlled by applying a voltage; when all the diodes are in forward bias states, the antenna works at a high frequency; and when all the diodes are in reverse bias states, the antenna works at a low frequency. The frequency re-configurable OAM antenna in S band in the present disclosure has features of frequency reconfiguration and two OAM radiation modes, and has a stable gain over a broadband.