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| Presentation | 2016-12-15 14:00 Evaluation of Power Transmission Efficiency between Array Antennas in the Near Field Seishiro Kojima, Naoki Shinohara, Tomohiko Mitani (Kyoto Univ.)  MW2016-143 Link to ES Tech. Rep. Archives: MW2016-143 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Power transmission efficiency between array antennas is calculated by regarding array them as aperture antennas. However, it is reported that there is a considerable gap between theoretical efficiency and measured one. As the reason, it can be considered that the theoretical calculation doesn't include losses. In particular, an incident wave on receiving antenna is a spherical wave in the near field and a loss occurs in power combined circuit because the amplitude and the phase of the electric field are different between elements. In this paper, we designed an array antenna and estimated losses such as antenna loss and synthesis loss in the simulation. Finally, we measured the power transmission efficiency by using the designed array antenna. As the result, we found that the efficiency including the estimated losses approached the measured efficiency. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Wireless power transfer / Array antenna / Near field / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 363, MW2016-143, pp. 61-65, Dec. 2016. | |
| Paper # | MW2016-143 | |
| Date of Issue | 2016-12-08 (MW) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | MW2016-143 Link to ES Tech. Rep. Archives: MW2016-143 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2016-12-15 - 2016-12-16 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | National Defense Academy |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Students Session / Microwave Technologies |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2016-12-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of Power Transmission Efficiency between Array Antennas in the Near Field |
| Sub Title (in English) | |
| Keyword(1) | Wireless power transfer |
| Keyword(2) | Array antenna |
| Keyword(3) | Near field |
| Keyword(4) | |
| Keyword(5) | |
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| Keyword(8) | |
| 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.) |
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| Speaker | Author-1 |
| Date Time | 2016-12-15 14:00:00 |
| Presentation Time | 20 minutes |
| Registration for | MW |
| Paper # | MW2016-143 |
| Volume (vol) | vol.116 |
| Number (no) | no.363 |
| Page | pp.61-65 |
| #Pages | 5 |
| Date of Issue | 2016-12-08 (MW) |
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