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首页> 外文期刊>IEEE Transactions on Antennas and Propagation >Misalignment Resilient Anchor-Shaped Antennas in Near-Field Wireless Power Transfer Using Electric and Magnetic Coupling Modes
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Misalignment Resilient Anchor-Shaped Antennas in Near-Field Wireless Power Transfer Using Electric and Magnetic Coupling Modes

机译：使用电气耦合模式近场无线电力传输中的未对准弹性锚固天线

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摘要

In this article, we propose a new antenna geometry for near-field magnetoelectric wireless power transfer (ME-WPT) application, where the antenna geometry is found to be resilient to misalignment between the receiving and the transmitting antennas. The proposed geometry is simple to fabricate and is planar, and therefore it can be easily integrated with various platforms suitable for wearable applications. The proposed structure is demonstrated to show improved WPT efficiency under different forms of misalignment between the transmitting and receiving antennas by the virtue of miniaturization and the fringing fields. Specifically, a central bar structure is added in the traditional loop antenna to provide dipole-like and miniaturized performance. Concurrently, a discontinuity in the loop is introduced to enable fringing fields beyond the aperture of the antenna. Investigations are conducted to conclude that a superiority in the performance is associated with these fringing fields. Design-optimization, simulation, and measurement investigations are conducted to estimate the WPT performance under various forms of misalignment. Notably, the proposed structure shows an increase as high as 65% in power transfer efficiency within the range of misalignment considered in this work.
机译：在本文中，我们提出了一种用于近场磁电无线电力传输（ME-WPT）应用的新天线几何形状，其中发现天线几何形状被弹性到接收和发射天线之间的未对准。所提出的几何形状易于制造，是平面的，因此它可以容易地与适用于可穿戴应用的各种平台集成。已经证明了所提出的结构，以在发射和接收天线之间的不同形式的未对准下，通过小型化和环绕领域来显示改善的WPT效率。具体地，在传统的环形天线中添加中心条结构，以提供偶极状和小型化性能。同时，引入环中的不连续性以使得能够在天线的孔径之外的流动场。进行调查以得出结论，性能的优势与这些环绕领域有关。设计优化，模拟和测量调查，以估计各种形式的未对准下的WPT性能。值得注意的是，所提出的结构显示在这项工作中考虑的错位范围内的功率转移效率高达65％。

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