Wireless power transfer based on dielectric resonators with colossal permittivity

被引：47

作者：

Song, Mingzhao ^{[1
]}

Belov, Pavel ^{[1
]}

Kapitanova, Polina ^{[1
]}

机构：

[1] ITMO Univ, Dept Nanophoton & Metamat, St Petersburg 197101, Russia

来源：

APPLIED PHYSICS LETTERS | 2016年 / 109卷 / 22期

基金：

俄罗斯科学基金会;

关键词：

ENERGY-TRANSFER;

D O I：

10.1063/1.4971185

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic resonant wireless power transfer system based on dielectric disk resonators made of colossal permittivity (epsilon = 1000) and low loss (tan delta = 2.5 x 10(-4)) microwave ceramic is experimentally investigated. The system operates at the magnetic dipole mode excited in the resonators providing maximal power transfer efficiency of 90% at the frequency 232 MHz. By applying an impedance matching technique, the efficiency of 50% is achieved within the separation between the resonators d = 16 cm (3.8 radii of the resonator). The separation, misalignment and rotation dependencies of wireless power transfer efficiency are experimentally studied. Published by AIP Publishing.

引用

页数：4

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