HIGH-EFFICIENCY WIRELESS ENERGY TRANSMISSION USING MAGNETIC RESONANCE BASED ON METAMATERIAL WITH RELATIVE PERMEABILITY EQUAL TO -1

被引:75
作者
Choi, J. [1 ]
Seo, C. [1 ]
机构
[1] Soongsil Univ, Dept Elect Engn, Wireless Commun RF Syst Lab, Seoul 156743, South Korea
关键词
POWER TRANSFER; INDEX; FIELD; HYPERTHERMIA;
D O I
10.2528/PIER10050609
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, a high-efficiency wireless energy transmision via magnetic resonance is implemented by using negative permeability metamaterial structures. The metamaterial structure is consisted of a three-dimensional (3D) periodic array of the unit cell that the capacitively loaded split ring resonators (CLSRRs) are periodically arranged in the cubic dielectric surfaces. This metamaterial structure has the negative permeability property that matches free space, which is used as a magnetic flux guide in order to enhance the efficiency of energy transmission is improved as reducing the radiation loss by focusing the magnetic field to a distant receiving coil. The distance able to transport the energy with maintaining the same efficiency has been increased by the same mechanism. The efficiency of energy transmission is approximately 80% at a transmission distance of 1.5 m.
引用
收藏
页码:33 / 47
页数:15
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