Simultaneous wireless information and power transfer transmitting architecture based on asynchronous space-time-coding digital metasurface[Invited]  

作　　者：祁振杰 戴俊彦 王思然 周群焰 唐万恺 王凯岑 张澎 刘硕 李龙 程强 崔铁军 Zhen Jie Qi;Jun Yan Dai;Si Ran Wang;Qun Yan Zhou;Wankai Tang;Kaicen Wang;Peng Zhang;Shuo Liu;Long Li;Qiang Cheng;Tie Jun Cui(State Key Laboratory of Millimeter Waves,Southeast University,Nanjing 210096,China;Institute of Electromagnetic Space,Southeast University,Nanjing 210096,China;Frontiers Science Center for Mobile Information Communication and Security,Southeast University,Nanjing 210096,China;National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China;National Key Laboratory of Electromagnetic Information Control and Effects,Shenyang 110035,China;Key Laboratory of High-Speed Circuit Design and EMC of Ministry of Education,Xidian University,Xi'an 710071,China)

机构地区：[1]State Key Laboratory of Millimeter Waves,Southeast University,Nanjing 210096,China [2]Institute of Electromagnetic Space,Southeast University,Nanjing 210096,China [3]Frontiers Science Center for Mobile Information Communication and Security,Southeast University,Nanjing 210096,China [4]National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China [5]National Key Laboratory of Electromagnetic Information Control and Effects,Shenyang 110035,China [6]Key Laboratory of High-Speed Circuit Design and EMC of Ministry of Education,Xidian University,Xi'an 710071,China

出　　处：《Chinese Optics Letters》2023年第8期17-22,共6页中国光学快报（英文版）

基　　金：supported by the Program of Song Shan Laboratory(included in the management of Major Science and Technology Program of Henan Province)(Nos.221100211300-03 and 221100211300-02);the National Key Research and Development Program of China(No.2018YFA0701904);the National Natural Science Foundation of China(Nos.62288101,61731010,62201139,and U22A2001);the 111 Project(No.111-2-05);the Jiangsu Province Frontier Leading Technology Basic Research Project(No.BK20212002);the Fundamental Research Funds for the Central Universities(No.2242022k60003);the National Natural Science Foundation(NSFC)for Distinguished Young Scholars of China(No.62225108);the Southeast University-China Mobile Research Institute Joint Innovation Center(No.R207010101125D9).

摘　　要：Simultaneous wireless information and power transfer(SWIPT)architecture is commonly applied in wireless sensors or Internet of Things(IoT)devices,providing both wireless power sources and communication channels.However,the traditional SWIPT transmitter usually suffers from cross-talk distortion caused by the high peak-to-average power ratio of the input signal and the reduction of power amplifier efficiency.This paper proposes a SWIPT transmitting architecture based on an asynchronous space-time-coding digital metasurface(ASTCM).High-efficiency simultaneous transfer of information and power is achieved via energy distribution and information processing of the wireless monophonic signal reflected from the metasurface.We demonstrate the feasibility of the proposed method through theoretical derivations and experimental verification,which is therefore believed to have great potential in wireless communications and the IoT devices.

关 键 词：simultaneous wireless information and power transfer asynchronous space-time-coding digital metasurface quadrature phase-shift keying modulation 

分 类 号：TN92[电子电信—通信与信息系统]