Inhomogeneous electromagnetic metamaterial design method for improving efficiency and range of wireless power transfer

被引：10
作者：
An, Huilin [1 ,2 ]
Liu, Guoqiang [1 ,2 ]
Li, Yanhong [1 ,2 ]
Song, Jiaxiang [1 ,2 ]
Zhang, Chao [1 ,2 ]
Liu, Min [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Elect Engn, Beijing, Peoples R China
[2] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing, Peoples R China
来源：
IET MICROWAVES ANTENNAS & PROPAGATION | 2019年 / 13卷 / 12期
基金：
中国国家自然科学基金;
关键词：
finite element analysis; electromagnetic metamaterials; magnetic fields; coils; magnetic permeability; permeability; metamaterials; inductive power transmission; two-dimensional IEMMM; shaped coil unit cell; finite element simulation results; WPTS; magnetic field modulation; designed IEMMM; power transmission efficiency; inhomogeneous electromagnetic metamaterial design method; range; homogeneous electromagnetic metamaterial; inhomogeneous EMMM; significant progress; wireless power transfer system; effective permeability characteristics; modulated regulation; negative permeability medium; FIELD;
D O I：
10.1049/iet-map.2019.0255
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 the past few years, the limitation of homogeneous electromagnetic metamaterial (EMMM) in magnetic field modulation had been proved by many researches. The introduction of inhomogeneous EMMM (IEMMM) provided a significant progress in improving the range and efficiency of the wireless power transfer system (WPTS). An IEMMM with three kinds of effective permeability came up here. By analysing the effective permeability characteristics of the circular, square, and '8'-shaped coil unit cell and the modulated regulation of magnetic field by negative permeability medium, a two-dimensional IEMMM with combinations of square and '8'-shaped coil unit cell were studied. The finite element simulation results of WPTS with IEMMM proved an improvement in magnetic field modulation and flux leakage control. In the WPTS, the designed IEMMM is able to improve the power transmission efficiency by up to 28%.
引用
收藏
页码：2110 / 2118
页数：9
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