Experiments on wireless power transfer with metamaterials

In this letter, we propose the use of metamaterials to enhance the evanescent wave coupling and improve the transfer efficiency of a wireless power transfer system based on coupled resonators. A magnetic metamaterial is designed and built for a wireless power transfer system. We show with measuremen...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2011-06, Vol.98 (25), p.254101-254101-3
Main Authors: Wang, Bingnan, Teo, Koon Hoo, Nishino, Tamotsu, Yerazunis, William, Barnwell, John, Zhang, Jinyun
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this letter, we propose the use of metamaterials to enhance the evanescent wave coupling and improve the transfer efficiency of a wireless power transfer system based on coupled resonators. A magnetic metamaterial is designed and built for a wireless power transfer system. We show with measurement results that the power transfer efficiency of the system can be improved significantly by the metamaterial. We also show that the fabricated system can be used to transfer power wirelessly to a 40 W light bulb.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3601927