A review of wireless power transfer using magnetoelectric structures
A review of wireless power transfer using magnetoelectric structures
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DOI：
10.1088/1361-665x/ac9166
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发表时间：
2022-09
影响因子：
4.1
通讯作者：
Orpita Saha;B. Truong;S. Roundy
中科院分区：
文献类型：
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作者：
Orpita Saha;B. Truong;S. Roundy
在过去的几十年里，无线电力传输（WPT）主要作为一种给电池充电的手段而受到越来越多的关注。最近，磁电（ME）结构被研究作为WPT系统的替代接收天线。ME结构对于小型器件特别有用，因为在给定的工作频率下，其最佳尺寸比传统的接收线圈小得多。使用ME层压板接收器的WPT系统已被证明有助于为各种传感器和生物医学植入物无线供电。近年来，为了提高ME复合材料的性能，人们进行了大量的研究，提出了不同的结构，并使用了不同的磁致伸缩和压电材料。此外，许多努力都致力于使ME设备小型化。要克服的一个重要障碍是消除对直流偏置场的需求，而直流偏置场通常是微机电结构运行所必需的。在这篇综述文章中，我们将讨论复合材料中ME效应的基本原理，目前使用的材料，各种ME接收器结构，性能测量，限制，挑战和未来的展望。此外，我们提出了一个权力值，我们用它来比较最近的ME WPT研究论文。
Wireless power transfer (WPT) has received increasing attention primarily as a means of recharging batteries in the last few decades. More recently, magnetoelectric (ME) structures have been investigated as alternative receiving antennas in WPT systems. ME structures can be particularly useful for small scale devices since their optimal size is much smaller than traditional receiving coils for a given operating frequency. WPT systems using ME laminate receivers have been shown to be helpful in wirelessly powering various sensors and biomedical implants. In recent years, a large number of studies have been conducted to improve the performance of ME composites, in which various configurations have been proposed, along with the use of different magnetostrictive and piezoelectric materials. In addition, many efforts have been devoted to miniaturizing ME devices. An essential obstacle to overcome is to eliminate the need for a DC bias field that is commonly required for the operation of ME structures. In this review paper, we will discuss the basic principle of ME effects in composites, materials currently in use, various ME receiver structures, performance measures, limitations, challenges, and future perspectives for the field of WPT. Furthermore, we propose a power figure of merit which we use to compare recent ME WPT research papers.