High-efficiency and wide-angle metasurface electromagnetic energy harvester

IF 1.9 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Frontiers in Physics Pub Date : 2024-08-15 DOI:10.3389/fphy.2024.1423036

Anjie Cao, Shuyin Xu, Yeping Huang, Leiting Zhang, Cuijun Liu, Zhansheng Chen

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Abstract

In today’s era of increasing energy constraints, harnessing the power of electromagnetic waves and converting them into directly usable energy has great potential in the field of renewable energy. This paper presents a highly efficient electromagnetic energy harvester with wide operation angles based on metasurface. The metasurface unit comprises four rotated copper rings plated on a Rogers RT5880 substrate. This unique design incorporates a 3.6 kΩ resistor within each of the four-cornered rotating metal rings, effectively emulating the input impedance circuit of a rectifier. Simulation results reveal that the metasurface achieves a remarkable electromagnetic wave harvesting efficiency of up to 92.3% at a frequency of 5.85 GHz. Additionally, it exhibits polarization insensitivity, enhancing its versatility and suitability for wide incident angles, which augments its practicality in various environments. The proposed metasurface energy harvester represents a significant advancement in electromagnetic energy collection technology, offering an efficient and reliable energy harvesting solution that contributes to addressing energy shortages and is applicable across multiple scenarios.

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高效广角元表面电磁能量收集器

在能源日益紧张的今天，利用电磁波的力量并将其转化为直接可用的能量，在可再生能源领域具有巨大的潜力。本文介绍了一种基于超表面的、具有宽工作角度的高效电磁能量收集器。元表面单元由四个镀在罗杰斯 RT5880 基板上的旋转铜环组成。这种独特的设计在四个角旋转金属环的每个环内都安装了一个 3.6 kΩ 电阻器，有效地模拟了整流器的输入阻抗电路。仿真结果表明，元表面在 5.85 GHz 频率下的电磁波收集效率高达 92.3%。此外，它还表现出极化不敏感性，增强了其多功能性和宽入射角的适用性，从而提高了其在各种环境中的实用性。所提出的元表面能量收集器代表了电磁能量收集技术的重大进步，提供了一种高效可靠的能量收集解决方案，有助于解决能源短缺问题，并适用于多种场景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Frontiers in Physics Mathematics-Mathematical Physics

CiteScore

4.50

自引率

6.50%

发文量

1215

审稿时长

12 weeks

期刊介绍： Frontiers in Physics publishes rigorously peer-reviewed research across the entire field, from experimental, to computational and theoretical physics. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, engineers and the public worldwide.