Wireless power transfer with artificial magnetic conductors

Author

Jing Wu ; Bingnan Wang ; Yerazunis, William S. ; Koon Hoo Teo

Author_Institution

Mitsubishi Electr. Res. Labs., Cambridge, MA, USA

fYear

2013

fDate

15-16 May 2013

Firstpage

155

Lastpage

158

Abstract

In this paper, a wireless power transfer system (WPT) with magnetically coupled resonators is studied. The idea to use a reflector to enhance the coupling coefficient and the transfer efficiency is proposed and analyzed. Perfect magnetic conductor (PMC) was used in numerical calculations in order to study the performance of a reflector. In the WPT system we studied, efficiency is increased from 48% without reflector to 72% with PMC reflector. With recently developed metamaterial technologies, artificial PMCs can be designed and fabricated for such reflectors.

Keywords

electromagnetic metamaterials; inductive power transmission; resonators; PMC reflector; WPT system; artificial magnetic conductor; coupling coefficient enhancement; magnetically coupled resonator; metamaterial technology; perfect magnetic conductor; transfer efficiency enhancement; wireless power transfer; Coils; Conductors; Couplings; Magnetic fields; Magnetic materials; Metamaterials; Wireless communication; Wireless power transfer (WPT); metamaterials; artificial perfect magnetic conductor (APMC);

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Power Transfer (WPT), 2013 IEEE

Conference_Location

Perugia

Print_ISBN

978--14673-5008-2

Type

conf

DOI

10.1109/WPT.2013.6556906

Filename

6556906