From liquid crystal on silicon and liquid crystal reflectarray to reconfigurable intelligent surfaces for post-5G networks
File(s)
Published version
Author(s)
Li, Jinfeng
Type
Journal Article
Abstract
This communication aims to address the recent surge of interest in reconfigurable intelligent surfaces (RISs) among both academic and industrial communities, which has largely neglected the historical developments of two other underpinning technologies, i.e., liquid crystal on silicon (LCOS) and liquid crystal reflectarray antenna (LCRA). Specifically, this communication focuses on the state of the art of LC-RIS, highlighting the unique features of this newly raised enabling technology for post-5G (6G) networks and comparing it to LCOS, which operates at different frequencies and is suited to different use cases. Drawing on insights from existing knowledge of LCOS and LCRA, opportunities and challenges are explored for LC-RIS’s technical advancements in enhancing the coverage, capacity, and energy efficiency of wireless networks. In particular, the development status and roadmap of LC-RIS in China is reviewed.
Date Issued
2023-06-22
Date Acceptance
2023-06-21
Citation
Applied Sciences, 2023, 13 (13), pp.1-9
ISSN
2076-3417
Publisher
MDPI AG
Start Page
1
End Page
9
Journal / Book Title
Applied Sciences
Volume
13
Issue
13
Copyright Statement
© 2023 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
License URL
Identifier
https://www.mdpi.com/2076-3417/13/13/7407
Publication Status
Published
Article Number
7407
Date Publish Online
2023-06-22