基于反向反射波束形成的低功耗移动设备无线充电

2014 IEEE Antennas and Propagation Society International Symposium (APSURSI) Pub Date : 2014-07-06 DOI:10.1109/APS.2014.6905031

Xin Wang, Jin-Tao He, Lisheng Guo, S. Sha, Mingyu Lu

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摘要

本文提出了一种基于反向反射波束形成的低功耗移动设备无线供电实验研究。在我们的方案中，由脉冲序列组成的导频信号从移动设备广播。无线充电器分析接收到的导频信号，然后相应地在移动设备上构建一个聚焦的功率束。在我们的实验中，从充电器传输的1瓦功率中有14兆瓦被50厘米远的移动设备收集，并且功率束能够动态跟踪设备的位置。另外，由于导频信号的频谱覆盖一定的频率范围，无线电源的载波可以配置在多个频率之间。

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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Wireless charging for low-power mobile devices based on retro-reflective beamforming

This paper presents an experimental study on wireless power delivery to low-power mobile devices based on retro-reflective beamforming. In our scheme, a pilot signal comprised of an impulse train is broadcasted from a mobile device. The wireless charger analyzes the received pilot signal, and then accordingly constructs a focused power beam onto the mobile device. In our experiments, 14 mW out of the 1 Watt power transmitted from the charger is harvested by the mobile device 50-cm distance away, and the power beam is capable of tracking the device's location dynamically. In addition, since the pilot signal's spectrum covers a certain frequency range, the carrier of wireless power can be configured among multiple frequencies.

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2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)

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