Reconfigurable Metasurface:A Systematic Categorization and Recent Advances  

作　　者：Changhao Liu Fan Yang Shenheng Xu Maokun Li 

机构地区：[1]Department of Electronic Engineering,Tsinghua University,Beijing 100084,China [2]Beijing National Research Center for Information Science and Technology(BNRist),Beijing 100084,China

出　　处：《Electromagnetic Science》2023年第4期1-23,共23页电磁科学（英文）

基　　金：supported in part by the National Natural Science Foundation of China(Grant No.U2141233);the ZTE Industry-Academia-Research Cooperation Funds,and the New Cornerstone Science Foundation through THE XPLORER PRIZE.

摘　　要：Considering the rapid progress of theory,design,fabrication and applications,metasurfaces(MTSs)have become a new research frontier in microwave,terahertz and optical bands.Reconfigurable metasurfaces(R-MTSs)can dynamically modulate electromagnetic(EM)waves with unparalleled flexibility,which has led to a great surge of research in recent years.Numerous R-MTSs with powerful capabilities and various functions are being proposed explosively.Based on the five dimensions of EM waves,this review proposes a unified model to describe the interactions among R-MTSs,EM waves and EM information and suggests an information bit allocation strategy to categorize different types of R-MTSs systematically.Recent advances in R-MTSs and 1-bit and 2-bit elements manipulating different wave dimensions are reviewed in detail.Finally,this review discusses the future research trends of R-MTSs.R-MTSs with diverse dimensions and functions may propel the next generation of communication,detection,sensing,imaging and computing applications.

关 键 词：Antenna Electromagnetic surface Electromagnetic wave Information bits Information metasurface Metasurface Multidimension MULTIFUNCTION RECONFIGURABLE REFLECTARRAY Switch Transmitarray 

分 类 号：O17[理学—数学]