太赫兹科学与电子信息学报2026，Vol.24Issue(4)：457-464,8.DOI:10.11805/TKYDA2025228
基于集成型超表面的宽功率无线能量收集器
Wide power range wireless energy harvester based on compact metasurface
摘要
Abstract
With the increasing topological density of the Internet of Things(IoT),conventional energy harvesting systems,which are sensitive to input power fluctuations,struggle to meet the demands of wide-range power energy harvesting in complex electromagnetic environments.This paper proposes a wide-power Rectifying Metasurface(RMS)integrated with SMS7630 diodes.By optimizing the unit cell structure of the RMS to provide high impedance,conjugate matching can be achieved with the nonlinear impedance characteristics of rectifying diodes,thereby balancing the impedance variations of the rectifying diodes across a wide power range without requiring external matching networks.Full-wave analysis and experimental results demonstrate that the designed RMS operates at 5.8 GHz and is suitable for environments with input power ranging from-7 dBm to 2 dBm.Experimental testing based on a 5×5 RMS array shows that the Radio Frequency-to-Direct Current(RF-DC)conversion efficiency remains above 24%throughout this power range,achieving a peak efficiency of 43%at 2 dBm.关键词
整流超表面/宽功率范围/无线能量收集/二极管Key words
Rectifying Metasurface(RMS)/wide power range/wireless energy harvesting/diode分类
信息技术与安全科学引用本文复制引用
周佳丽,李方位,何忠奇,刘长军,闫丽萍..基于集成型超表面的宽功率无线能量收集器[J].太赫兹科学与电子信息学报,2026,24(4):457-464,8.基金项目
国家自然科学基金资助项目(U22A2015) （U22A2015）
四川省科技计划资助项目(2024YFHZ0282) （2024YFHZ0282）
