4.4 Article

Experiments on adjustable magnetic metamaterials applied in megahertz wireless power transmission

Journal

AIP ADVANCES
Volume 5, Issue 1, Pages -

Publisher

AMER INST PHYSICS
DOI: 10.1063/1.4907043

Keywords

-

Funding

  1. National Natural Science Foundation of China [51277120]

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Over the past few years, various metamaterials have been designed and applied in antenna systems. In this paper, a new structure of magnetic metamaterials is proposed for megahertz wireless power transmission, which can be manually adjusted to work at a variable frequency ranging from 10 similar to 30 Mhz. The S parameters, resonant frequency, effective permeability of metamaterials are computed for analysis. The different substrates and layouts of metamaterial slab are also numerically evaluated by full-wave simulation. The specific magnetic metamaterial slabs with 17.6 MHz are fabricated and experimentally verified by the network analyzer. Finally, these slabs are applied in a more practical two-coil coupling system to evaluate their performance enhancement. (C) 2015 Author(s).

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