A Scalable, Dual-Polarized Absorber Surface for Electromagnetic Energy Harvesting and Wireless Power Transfer

被引：55

作者：

Erkmen, Faruk ^{[1
]}

Ramahi, Omar M. ^{[2
]}

机构：

[1] Humber Coll, Fac Appl Sci & Technol, Inst Technol & Adv Learning, Toronto, ON M9W 5L7, Canada

[2] Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON N2L 3G1, Canada

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2021年 / 69卷 / 09期

关键词：

Computer architecture; Microprocessors; Absorption; Rectennas; Surface impedance; Surface waves; Substrates; Dual-polarized rectenna; electromagnetic (EM) energy harvesting; frequency selective surface (FSS); full-wave rectifier; rectenna array; scalability; wireless power transfer (WPT); RECTENNA;

D O I：

10.1109/TMTT.2021.3087622

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present a dual-polarized electromagnetic (EM) energy-harvesting system that consists of a periodic absorber surface and a full-wave rectifier. The unit cell of the absorber is constructed using concentric bow-tie dipoles and channeling features that make it possible to efficiently combine and transfer the collected power from multiple unit cells. Simulation results are provided together with experimental verification demonstrating the strong absorption characteristics of the proposed energy harvesting surface. Overall radiation-to-DC conversion efficiency of the fabricated prototype was measured to be more than 60% under two perpendicular polarizations. The performance of the structure was further evaluated under various polarization angles and the results demonstrate that the proposed concept can be used to construct a scalable and polarization insensitive energy-harvesting system.

引用

页码：4021 / 4028

页数：8

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