WPT by a pair of short helical dipoles

T. Uesaka, H. Arai
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Abstract

Wireless power transmission (WPT) by two short helical dipoles arrayed orthogonally is presented. For the electric resonance coupling WPT system, the short dipoles need for a matching circuit due to cancel its large capacitance at the operating frequency. In the proposed method, the loss is reduced by using the helical structure instead of matching circuit. Its power transmission characteristics are shown in experiments. The measured results are agreed with the calculated results of a pair of dipoles with a matching circuit. In the orthogonal arrangement, the WPT is possible in the wide range expect for the angle θ = 0 between the antennas. At θ = π/4, the coupling coefficient becomes the maximum, and the WPT is enabled for the longest distance.
WPT由一对短螺旋偶极子组成
提出了一种利用正交排列的短螺旋偶极子进行无线输电的方法。对于电谐振耦合WPT系统,由于短偶极子在工作频率处的电容较大,需要进行匹配电路。在该方法中,采用螺旋结构代替匹配电路来降低损耗。实验证明了其动力传输特性。用匹配电路对偶极子的测量结果与计算结果一致。在正交排列中,除了天线之间的角度θ = 0外,WPT在很宽的范围内都是可能的。当θ = π/4时,耦合系数达到最大值,WPT开启最长距离。
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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