曲阜师范大学学报（自然科学版）2024，Vol.50Issue(3)：103-107,5.DOI:10.3969/j.issn.1001-5337.2024.3.103
基于OAM卷积操作的多功能编码超表面
Multifunctional coding metasurface based on OAM convolution operation
摘要
Abstract
An"H"type Fourier convolutional metasurface operating in the microwave band is proposed with polarization insensitivity in TE and TM modes.The cross-polarization reflection amplitude is greater than 0.9 in the operating frequency band 20 GHz～34 GHz,and the phase shift of 2π can be achieved by changing only the centroid angle and rotation angle,and the vortex beam carrying orbital angular momen-tum(OAM)is realized under the pre-designed metasurface arrangement.The OAM vortex beam can effec-tively increase the communication capacity.By performing Fourier convolution operation on the metasur-face,multifunctional operations can be performed on the electromagnetic wave,such as abnormal reflection of the vortex beam,splitting of the vortex beam,etc,which realizes the effective regulation of the vortex e-lectromagnetic wave.关键词
涡旋波/轨道角动量/卷积操作/多功能Key words
vortex wave/orbital angular momentum/convolution operation/multifunction分类
信息技术与安全科学引用本文复制引用
韩明秀,徐娟..基于OAM卷积操作的多功能编码超表面[J].曲阜师范大学学报（自然科学版）,2024,50(3):103-107,5.基金项目
国家自然科学基金(61701278). （61701278）
