Presentation 2017-03-06
Study of a Transmitting Antenna for High Efficiency Transmission in the Radiative Near Field
Seishiro Kojima, Naoki Shinohara, Tomohiko Mitani,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In the radiative near field, electric fields mutually cancel each other on a receiving plane because of the phase difference between the center and the edge of a transmitting plane. In this paper, we investigated whether high efficiency can be realized by setting the electric fields to 0 of transmitting plane corners. As the result, the beam collection efficiency was improved in the theoretical calculation and in the case of an array antenna. Further, we calculated the phase difference between the center and the corner of a transmitting plane in the distance where the high efficiency was realized. We found the efficiency is improved in the distance where the phase difference is larger than 1.3 rad if the corner size is about 4 % or less of a transmitting plane.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Wireless power transfer / Antenna / Radiative near field
Paper # WPT2016-69
Date of Issue 2017-02-27 (WPT)

Conference Information
Committee WPT
Conference Date 2017/3/6(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kyoto Univ. Uji Campus
Topics (in Japanese) (See Japanese page)
Topics (in English) Wireless Power Transfer, SPS Technology, etc.
Chair Chenq Kiyou(Tohoku Univ.)
Vice Chair
Secretary (Toyohashi Univ. of Tech.)
Assistant Tsunayuki Yamamoto(Yamaguchi Univ.) / Takehiro Imura(Univ. of Tokyo)

Paper Information
Registration To Technical Committee on Wireless Power Transfer
Language JPN-ONLY
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Study of a Transmitting Antenna for High Efficiency Transmission in the Radiative Near Field
Sub Title (in English)
Keyword(1) Wireless power transfer
Keyword(2) Antenna
Keyword(3) Radiative near field
1st Author's Name Seishiro Kojima
1st Author's Affiliation Kyoto University(Kyoto Univ.)
2nd Author's Name Naoki Shinohara
2nd Author's Affiliation Kyoto University(Kyoto Univ.)
3rd Author's Name Tomohiko Mitani
3rd Author's Affiliation Kyoto University(Kyoto Univ.)
Date 2017-03-06
Paper # WPT2016-69
Volume (vol) vol.116
Number (no) WPT-499
Page pp.pp.19-23(WPT),
#Pages 5
Date of Issue 2017-02-27 (WPT)