Wireless power transfer based on magnetic metamaterials consisting of assembled ultra-subwavelength meta-atoms
Key Laboratory of Advanced Micro-structured Materials, Ministry of Education, School of Physics Science and Engineering, Tongji University - Shanghai 200092, China
Received: 25 October 2014
Accepted: 14 March 2015
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.
PACS: 81.05.Xj – Metamaterials for chiral, bianisotropic and other complex media / 84.40.-x – Radiowave and microwave (including millimeter wave) technology / 41.20.Jb – Electromagnetic wave propagation; radiowave propagation
© EPLA, 2015