| Presentation | 2017-07-28 Effect of Received Electric Field on Transmission Efficiency of Microwave Power Transfer System Masaya Ishida, Toshiaki Watanabe, Tomohiko Mitani, Naoki Shinohara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The relation between electric field distribution and transmission efficiency of the microwave power transfer (MPT) system is presented. The MPT system uses 2.45 GHz band and its transmission power is 50 W. The transmitting (Tx) and receiving (Rx) antennas are made of 64 elements array antennas and its aperture size of each antenna is 0.48 x 0.48 m. The electric field distribution in the Fresnel region of the large size antenna is inhomogeneous. That induces the variation of receiving power of each element and decrease transmission efficiency. In this study, we measured the electric field distribution and transmission efficiency to analyze the relation of them. As a result, the maximum transmission efficiency of the MPT system is 5.2% at the distance between Tx and Rx antennas are 2 m. The transmission efficiency inside of this distance is decreased due to the ununiformity of the electric field distribution. In contrast, that outside of this distance is decreased due to the electric field declaration of the distance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microwave Power Transfer / Array Antenna / Electric Field / Rectenna |
| Paper # | EE2017-27,WPT2017-32 |
| Date of Issue | 2017-07-20 (EE, WPT) |
| Conference Information | |
| Committee | EE / WPT / IEE-SPC |
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| Conference Date | 2017/7/27(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Fujio Kurokawa(NiAS) / Chenq Kiyou(Tohoku Univ.) |
| Vice Chair | Masatoshi Nakahara(Sojo Univ.) / Keiichi Hirose(NTT-F) / Tomohiro Seki(Nihon Univ.) |
| Secretary | Masatoshi Nakahara(Fukuoka Univ.) / Keiichi Hirose(NTT) / Tomohiro Seki(Nagoya Inst. of Tech.) / (Hokkaido Univ.) |
| Assistant | kazuhiro Kajiwara(NiAS) / Takashi Matsushita(NTT-F) / Hidenori Maruta(Nagasaki Univ.) / Takehiro Imura(Univ. of Tokyo) / Masahiro Hanazawa(UL Japan) |
| Paper Information | |
| Registration To | Technical Committee on Energy Engineering in Electronics and Communications / Technical Committee on Wireless Power Transfer / Technical Meeting on Semiconductor Power Converter |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effect of Received Electric Field on Transmission Efficiency of Microwave Power Transfer System |
| Sub Title (in English) | |
| Keyword(1) | Microwave Power Transfer |
| Keyword(2) | Array Antenna |
| Keyword(3) | Electric Field |
| Keyword(4) | Rectenna |
| 1st Author's Name | Masaya Ishida |
| 1st Author's Affiliation | Toyota Central R&D Labs Inc.,(Toyota CRDL) |
| 2nd Author's Name | Toshiaki Watanabe |
| 2nd Author's Affiliation | Toyota Central R&D Labs Inc.,(Toyota CRDL) |
| 3rd Author's Name | Tomohiko Mitani |
| 3rd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 4th Author's Name | Naoki Shinohara |
| 4th Author's Affiliation | Kyoto University(Kyoto Univ.) |
| Date | 2017-07-28 |
| Paper # | EE2017-27,WPT2017-32 |
| Volume (vol) | vol.117 |
| Number (no) | EE-157,WPT-158 |
| Page | pp.pp.99-103(EE), pp.99-103(WPT), |
| #Pages | 5 |
| Date of Issue | 2017-07-20 (EE, WPT) |