利用三维超材料提高无线传输效率的研究

2017 7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies (MAPE) Pub Date : 2017-10-01 DOI:10.1109/MAPE.2017.8250863

Junfeng Chen, H. Tan

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引用次数: 3

摘要

超材料对电磁波的控制能力很大，这主要表现在对远场传播特性的控制上。本文将三维超材料应用于近场无线电力传输系统中，以提高传输效率。三维超材料结构由五匝螺旋谐振腔4×4×1-array组成。本文从理论、实验和仿真三个方面对具有块状超材料的WPT进行了研究。为了验证三维超材料对WPT系统的增强作用，利用矢量网络分析仪(VNA)对集成和不集成块体超材料的四线圈系统进行了研究。结果表明，在1.5m的传输距离下，三维超材料的效率提高了20%。同时，可以大大扩展高效功率传输的范围。

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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Investigation of wireless power transfer with 3D metamaterial for efficiency enhancement

Metamaterial have shown great power of controlling the EM waves, which is mainly about the propagation property of far field. In this paper, three-dimensional (3D) metamaterials are used in near field wireless power transfer (WPT) system for efficiency enhanced. The 3D metamaterial structure is composed of 4×4×1-array of five-turn spiral resonators. The WPT with bulk metamaterial is investigated theoretically, experimentally, and by simulation. To verify the enhancement of the WPT system by using 3D metamaterial, the four-coil systems integrated with and without bulk metamaterial are investigated by vector network analyzer (VNA). As a result, the maximum efficiency improvement of 20% is obtained with the 3D metamaterials at 1.5m transfer distance. At the same time, the range of efficient power transfer can be greatly extended.

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2017 7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies (MAPE)

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