Flexible and wearable battery-free backscatter wireless communication system for colour imaging  

作　　者：Jun-Lin Zhan Wei-Bing Lu Cong Ding Zhen Sun Bu-Yun Yu Lu Ju Xin-Hua Liang Zhao-Min Chen Hao Chen Yong-Hao Jia Zhen-Guo Liu Tie-Jun Cui 

机构地区：[1]State Key Laboratory of Millimeter Waves,School of Information Science and Engineering,Southeast University,Nanjing 210096,China [2]Center for Flexible RF Technology,Frontiers Science Center for Mobile Information Communication and Security,Southeast University,Nanjing 210096,China [3]College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China

出　　处：《npj Flexible Electronics》2024年第1期761-769,共9页npj-柔性电子(英文)

基　　金：supported by the National Science Funds for Distinguished Young Scientists under grant number 61925103;the Project for Jiangsu Specially Appointed Professor,National Natural Science Foundation of China(NSFC)62101115;the Fundamental Research Funds for the Central Universities 2242022k60004.

摘　　要：Wireless imaging,equippedwith ultralow power wireless communications and energy harvesting(EH)capabilities,have emerged as battery-free and sustainable solutions.However,the challenge of implementing wireless colour imaging in wearable applications remains,primarily due to high power demands and the need to balance energy harvesting efficiency with device compactness.To address these issues,we propose a flexible and wearable battery-free backscatter wireless communication system specially designed for colour imaging.The system features a hybrid RF-solar EH array that efficiently harvests energy from both ambient RF and visible light energy,ensuring continuous operation in diverse environments.Moreover,flexible materials allow the working system to conform to the human body,ensuring comfort,user-friendliness,and safety.Furthermore,a compact design utilizing a shared-aperture antenna array for simultaneous wireless information and power transfer(SWIPT),coupled with an optically transparent stacked structure.This design not only optimizes space but also maintains the performance of both communication and EH processes.The proposed flexible and wearable systems for colour imaging would have potentially applications in environmental monitoring,object detection,and law enforcement recording.This approach demonstrates a sustainable and practical solution for the next generation of wearable,power-demanding devices.

关 键 词：COMMUNICATION ANTENNA BATTERY 

分 类 号：TN9[电子电信—信息与通信工程]