Accurate and broadband manipulations of harmonic amplitudes and phases to reach 256 QAM millimeter-wave wireless communications by time-domain digital coding metasurface

作     者：Ming Zheng Chen Wankai Tang Jun Yan Dai Jun Chen Ke Lei Zhang Cheng Zhang Jin Yang Lianlin Li Qiang Cheng Shi Jin Tie Jun Cui Ming Zheng Chen;Wankai Tang;Jun Yan Dai;Jun Chen Ke;Lei Zhang;Cheng Zhang;Jin Yang;Lianlin Li;Qiang Cheng;Shi Jin;Tie Jun Cui

作者机构：Institute of Electromagnetic Space Southeast University State Key Laboratory of Terahertz and Millimeter Waves City University of Hong Kong State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronics Peking University National Mobile Communications Research LaboratorySoutheast University State Key Laboratory of Millimeter Waves Southeast University Center of Intelligent MetamaterialsPazhou Laboratory 

出 版 物：《National Science Review》 (国家科学评论(英文版))

年 卷 期：2022年第9卷第1期

页      面：36-46页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 

基　　金：supported by the National Key Research and Development Program of China (2017YFA0700201,2017YFA0700202, 2017YFA0700203 and 2018YFA0701904) the National Natural Science Foundation of China (61722106and 61731010) the 111 Project (111-2-05) the National Science Foundation of China for Distinguished Young Scholars(61625106) 

主　　题：metasurface time-domain digital coding accurate and broadband harmonic control 256 QAM millimeter-wave wireless communications 

摘      要：We propose a theoretical mechanism and new coding strategy to realize extremely accurate manipulations of nonlinear electromagnetic harmonics in ultrawide frequency band based on a time-domain digital coding metasurface(TDCM).Using the proposed mechanism and coding strategy,we design and fabricate a millimeter-wave(mmWave) TDCM,which is composed of reprogrammable meta-atoms embedded with positive-intrinsic-negative *** controlling the duty ratios and time delays of the digital coding sequences loaded on a TDCM,experimental results show that both amplitudes and phases of different harmonics can be engineered at will simultaneously and precisely in broad frequency band from 22 to33 GHz,even when the coding states are imperfect,which is in good agreement with theoretical *** on the fabricated high-performance TDCM,we further propose and experimentally realize a large-capacity mmWave wireless communication system,where 256 quadrature amplitude modulation,along with other schemes,is *** new wireless communication system has a much simpler architecture than the currently used mmWave wireless systems,and hence can significantly reduce the hardware *** believe that the proposed method and system architecture can find vast application in future mmWave and terahertz-wave wireless communication and radar systems.