Wireless power transfer based on magnetic metamaterials consisting of assembled ultra-subwavelength meta-atoms. (27th March 2015)

• Record Type: Journal Article
• Authors: Wu, Q.; Li, Y. H.; Gao, N.; Yang, F.; Chen, Y. Q.; Fang, K.; Zhang, Y. W.; Chen, H.
• Is Part Of: Europhysics letters. Volume 109:Number 6(2015:Mar.)
• Publication Date: 2015-03-27
• Subjects: 81.05.Xj -- 84.40.-x -- 41.20.Jb; Physics -- Periodicals; Electronic journals; 530.05
• DOI: 10.1209/0295-5075/109/68005
• Languages: English
• ISSNs: 0295-5075

Abstract

Abstract: In this letter, a potential way to transfer power wirelessly based on magnetic metamaterials (MMs) assembled by ultra-subwavelength meta-atoms is proposed. Frequency-domain simulation and experiments are performed for accurately obtaining effective permeability of magnetic metamaterials. The results demonstrate that MMs possess great power for enhancing the wireless power transfer efficiency between two non-resonant coils. Further investigations on the magnetic-field distribution demonstrate that a large-area flattened magnetic field in near range can be effectively realized, exhibiting great flexibility in assembling.