A consideration of electro-magnetic-resonant coupling mode in wireless power transmission

IEICE Electronics Express

Hiroshi Hirayama²  Yosuke Hiraiwa²  Nobuyoshi Kikuma²  Toshiyuki Ozawa¹  Kunio Sakakibara² 

[1] Dept. of Electrical Engineering and Computer Science, Nagoya University;Dept. of Computer Science and Engineering, Nagoya Institute of Technology

关键词: wireless power transmission;    electro-magnetic resonance;   

DOI  :  10.1587/elex.6.1421

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(4)Cited-By(8)The resonant mode of the wireless power transmission system is discussed to unveil a mechanism of wireless power transmission. We have analyzed electro-magnetic resonance phenomenon by using MoM to calculate input impedance, port currents, transmission efficiency, and near field distribution. We have checked that the system has two resonant frequencies, and the power transmission efficiency is maximized at those frequencies. The magnetic field distribution proves that the system has two different resonant modes. We have also considered far field to find that the higher frequency resonance is better for its high efficiency and low undesired emission.

【 授权许可】

Unknown