| Presentation | 2020-03-07 Study on Microwave Power Transmission Systems in Multipath Environments Taichi Sasaki, Naoki Shinohara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes that retrodirective systems improve the efficiency and safety of microwave power transmission (MPT) system in multipath environments. The retrodirective array antenna sends back the phase conjugate signal toward the pilot signal transmitted from the receiver. CST simulation verified that the retrodirective signal formed multibeams, concentrated at the receiver and improved the MPT efficiency in multipath environments. Even if there is an obstacle between the transmitter and the receiver, the retrodirective signal could track the receiver, avoiding direct exposure of the obstacle from the beam. Furthermore, it was found that the MPT efficiency of the retrodirective was further improved by using not only the phase information but also the amplitude information of the pilot signal. When there were two receivers, the retrodirective signal could track each target simultaneously with separate multi-beams. By adjusting the phase difference between the two pilot signals, the retrodirective signal that maximizes the received power could be estimated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microwave Power Transmission / Retrodirective / Multipath |
| Paper # | WPT2019-81 |
| Date of Issue | 2020-02-28 (WPT) |
| Conference Information | |
| Committee | WPT |
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| Conference Date | 2020/3/6(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Masaharu Takahashi(Chiba Univ.) |
| Vice Chair | |
| Secretary | (Yamaguchi Univ.) |
| Assistant | Nozomi Haga(Gunma Univ.) / Osamu Kagaya(AGC) |
| Paper Information | |
| Registration To | Technical Committee on Wireless Power Transfer |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on Microwave Power Transmission Systems in Multipath Environments |
| Sub Title (in English) | |
| Keyword(1) | Microwave Power Transmission |
| Keyword(2) | Retrodirective |
| Keyword(3) | Multipath |
| 1st Author's Name | Taichi Sasaki |
| 1st Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 2nd Author's Name | Naoki Shinohara |
| 2nd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| Date | 2020-03-07 |
| Paper # | WPT2019-81 |
| Volume (vol) | vol.119 |
| Number (no) | WPT-465 |
| Page | pp.pp.129-134(WPT), |
| #Pages | 6 |
| Date of Issue | 2020-02-28 (WPT) |