Enhancing the inductive coupling and efficiency of wireless power transmission system by using metamaterials
Résumé
Over recent years, the interest in using inductive wireless power transmission for many applications has grown. One of the major limitations of this technology is the limited operating distance. Some recent works have suggested using synthesized materials known as metamaterials to improve the power transfer efficiency over distance. Due to their unique electromagnetic properties such as negative permeability, metamaterials can be used to enhance the evanescent waves of the near-field. In the present work, the usage of a magnetic metamaterial to increase the inductive coupling by means of enhanced evanescent waves is studied. Analytical calculations and numerical simulations of the proposed metamaterial and its impact on power transfer efficiency are presented and supported by experimental measurements.
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