A multi-frequency and multi-mode metasurface energy harvester for RF energy harvesting

能量收集 消声室 无线电频率 微波食品加热 能量(信号处理) 可再生能源 电气工程 无线 电阻式触摸屏 功率(物理) 无线传感器网络 电子工程 声学 计算机科学 工程类 电信 物理 量子力学 计算机网络
作者
Xiaojun Huang,Kun Wang,Cuizhen Sun,Chuan Li,Jianchen Zhang,Shouqing Li
出处
期刊:Smart Materials and Structures [IOP Publishing]
卷期号:32 (10): 105010-105010
标识
DOI:10.1088/1361-665x/acf424
摘要

Abstract Metasurface energy harvesters (MEHs) lessen the dependence of wireless communication devices on batteries or other external power sources by capturing untapped electromagnetic energy in the surroundings. In this paper, we propose a multi-frequency and multi-mode microwave metasurface for efficient radio frequency (RF) and microwave energy harvesting. The MEH is comprised of a sub-wavelength resonant ring array, which can harvest RF energy in both Wi-Fi and 5 GHz bands. A feeding network is designed to integrate the TE and TM wave energy collected by the MEH into two separate networks that each gather AC energy and deliver them to the resistive loads. In terms of the simulation’s results, the efficiency of energy harvesting at frequencies of 2.4 GHz, 3.1 GHz, as well as 3.6 GHz is 91.3%, 88.9%, and 73.9%, specifically. We manufactured a 6 × 6 array sample and conducted experiments utilizing a microwave anechoic chamber. The simulation results and results from experiments were approximately identical. The proposed design has potential applications in various fields, such as efficient wireless energy harvesting systems, self-powered devices, which has a significant potential on the environment and the energy sector by reducing carbon emissions and reducing reliance on non-renewable energy sources.
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