Improvement of Transmission Efficiency and Uniformity for a Moving Vehicle in Wireless Power Transfer System Using Sheet-Like Waveguide and Loss Detail of the Waveguide

Naoki YONEYAMA  Hiroyuki ARAI  

B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)   Vol.J96-B   No.7   pp.712-719
Publication Date: 2013/07/01
Online ISSN: 1881-0209
Print ISSN: 1344-4697
Type of Manuscript: Special Section PAPER (Special Section on brushups for Young Researchers)
WPT for moving vehicle,  sheet-like waveguide,  electromagnetically coupling slot,  transmission efficiency,  uniform transmission characteristic,  loss breakdown,  

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In a wireless power transfer system using sheet-like waveguide, this paper proposes an receiving element with slot in order to realize a high transmission efficiency and achieves a uniform transmission characteristic by optimizing the waveguide structure. As a results, we obtained the performance with measured maximum efficiency of 71%, average efficiency of 58% and maximum deviation of 1.5 dB, which is high efficiency and uniform transmission characteristic. This paper also presents the detail of waveguide loss and shows that an adhesion degree of parasitic element in fabrication is a factor of loss increment.