Abstract
A quasi-continuous composite perfect electric conductor-perfect magnetic conductor metasurface and a systematic metasurface design process are proposed for the orbital angular momentum (OAM) generation. The metasurfaces reflect the incident left circularly polarized (LCP)/right circularly polarized (RCP) plane wave to RCP/LCP vortex beams carrying OAM at normal or oblique direction. Unlike conventional metasurfaces that are composed of discrete scatterers, the scatterers on the proposed metasurface form a quasi-continuous pattern. The patterning of the metasurface is calculated through grating vectors, and no optimization of single scatterer is required. Furthermore, the distortions from local-response discontinuity of discrete scatterers are avoided. This letter provides great convenience to high-quality OAM generation.
Recommended Citation
M. L. Chen et al., "Quasi-continuous Metasurfaces For Orbital Angular Momentum Generation," IEEE Antennas and Wireless Propagation Letters, vol. 18, no. 3, pp. 477 - 481, article no. 8624314, Institute of Electrical and Electronics Engineers, Mar 2019.
The definitive version is available at https://doi.org/10.1109/LAWP.2019.2894772
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Grating vector; Orbital angular momentum (OAM); Quasi-continuous metasurface
International Standard Serial Number (ISSN)
1536-1225
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Mar 2019
Comments
National Natural Science Foundation of China, Grant FA2386-17-1-0010