Using artificial magnetic conductors to improve the efficiency of wireless power transfer
Taixia Shi,
Lijuan Dong,
Yongqiang Chen,
Yong Sun,
Yanhong Liu,
Fusheng Deng,
Lixiang Liu,
Yunlong Shi,
Yanyan Shen
Affiliations
Taixia Shi
School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Lijuan Dong
School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Yongqiang Chen
Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Mathematics and Physics, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China
Yong Sun
Key Laboratory of Advanced Micro-structured Materials, MOE, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
Yanhong Liu
School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Fusheng Deng
Shanxi Provincial Key Laboratory of Microstructure Electromagnetic Functional Materials, Shanxi Datong University, Datong 037009, China
Lixiang Liu
School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Yunlong Shi
Shanxi Provincial Key Laboratory of Microstructure Electromagnetic Functional Materials, Shanxi Datong University, Datong 037009, China
Yanyan Shen
School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
In this study, an advanced wireless power transfer (WPT) system of two coils with the artificial magnetic conductors (AMC) is explored through simulations and experiments. The AMC structure is added on the transmitter coil, and the multiple resonant modes on the surface of the AMC can be energized. On the other hand, the AMC structure act as a magnetic field shield, which leads to the magnetic field above AMC structure is localized. Therefore, the localized resonant magnetic field enhance the transmission coefficient of the WPT system. The results show that the WPT transmission coefficient is increased from 16% to 35% in the experiment at 26.2 MHz resonant frequency when transmission distance is 3 cm. The experimental results agree with the simulation results. Additionally, AMC has the advantages of low-cost and can easily be installed on the WPT system.
