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THE INSTITUTE OF ELECTRONICS, IEICE Technical Report INFORMATION AND COMMUNICATION ENGINEERS

This article is a technical report without peer review, and its polished and/or extended version may be published elsewhere.

WPT

520-2194 1-5 520-2194 1-5

E-mail: awai@ryutech.com, {zhang, ishizaki }@rins.ryukoku.ac.jp

WPTWPT

1

Application of WPT Guides Wireless Power Transfer through a Wall by Small and Light-weight Repeaters

Ikuo AWAI Yuichi SAWAHARA Yuya IKUTA Yangjun ZHANG and Toshio ISHIZAKI

Ryutech Corporation 1-5 Yokotani, Seta-oecho, Otsu, 520-2194 Japan Faculty of Science Technology, Ryukoku University 1-5 Yokotani, Seta-oecho, Otsu, 520-2194 Japan

E-mail: awai@ryutech.com, {zhang, ishizaki }@rins.ryukoku.ac.jp

Abstract We have found that power transfer range is greatly extended by inserting some structures made of metal pipe, rod or disks connected with wire between two resonators of a resonator–coupled WPT system, and we have named them as WPT guides. One of them is easily designed and light-weight, and thus utilized as what they call the repeaters. In addition, more versatile applications could be devised considering its simple structures. The present report shows how it is used for power transfer through a wall, as an example.

Keyword Wireless Power Transfer, Guide, Electric Coupling, Open spiral resonator, Repeater, Transfer through Walls 1.

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[1] “

WPT ”WPT2010-19 pp.31-36 Jan.2011

[2] “0WPT

” WPT2011-81 pp. Sept. 2011 [3]

DVol.131, No. 12, pp. 1373-1382, Dec. 2011

[4] Jin-Wook Kim, Hyeon-Chang Son, Kwan-Ho Kim and Young-Jin Park, “Efficiency Analysis of Magnetic Resonance Wireless Power Transfer with Intermediate Resonant Coil,” IEEE Ant. and Wireless Prop. Lett. Vol. 10, pp.389-392, 2011.

[5] Dukjun Ahn and Songcheol Hong, “A Study on Magnetic Field Repeater in Wireless Power Transfer”, IEEE Trans. Ind. Elec, Vol. 60, No. 1, pp. 360-370, Jan. 2013.

[6] “”

WPT-2013-03 pp.10-15, April 2013. [7] , , , ,” WPT

”, MW 2013-15 pp.29-34 May, 2013

[8] Ikuo Awai, Yuichi Sawahara and Toshio Ishizaki, “Fabrication of a New High-performance WPT system by Electric Energy Confinement,” IEEE WPTC 2013 Proc., TH-O-3-3, Perugia, Italy, May 2013.

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