Using Artificial Magnetic Conductors to Improve the Efficiency of Wireless Power Transfer [chapter]

Taixia Shi, Lijuan Dong, Yongqiang Chen, Yong Sun, Yanhong Liu, Fusheng Deng, Lixiang Liu, Yunlong Shi
2020 Prime Archives in Physical Sciences  
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
more » ... ansmission 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.
doi:10.37247/paphys.1.2020.11 fatcat:vid23mu22fhe5o6ujzkdmlvrha