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| Presentation | 2021-11-18 15:25 Development of 1mW Class Rectenna for 920-MHz Band Wireless Power Transfer System Katsumi Kawai, Naoki Shinohara, Tomohiko Mitani (Kyoto Univ.)  MW2021-71 Link to ES Tech. Rep. Archives: MW2021-71 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The time and effort required to replace and recharge the batteries of wearable devices has become a problem in medical and welfare fields. To solve the problem of power supply for wearable devices, a wireless power transfer (WPT) system in the 920-MHz band has been proposed. To realize this WPT system, a highly efficient and low-power rectenna is required. The purpose of this study is to develop a high efficiency and low power rectenna in the 920-MHz band. As a first step, we developed a 1 mW class 920-MHz band charge pump rectifier circuit. We designed the rectifier circuit to achieve an output DC voltage of 3.0 V at an input power of 0 dBm. As a result of measurement experiments, a rectifier efficiency of 62.3 % and an output voltage of 2.85 V were obtained at an input power of -0.42 dBm. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Charge-pump rectifier circuit / Source-pull simulation / 920-MHz band wireless power transfer / Wearable Device / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 254, MW2021-71, pp. 24-28, Nov. 2021. | |
| Paper # | MW2021-71 | |
| Date of Issue | 2021-11-11 (MW) | |
| ISSN | 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 | MW2021-71 Link to ES Tech. Rep. Archives: MW2021-71 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2021-11-18 - 2021-11-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kagoshima University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2021-11-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Development of 1mW Class Rectenna for 920-MHz Band Wireless Power Transfer System |
| Sub Title (in English) | |
| Keyword(1) | Charge-pump rectifier circuit |
| Keyword(2) | Source-pull simulation |
| Keyword(3) | 920-MHz band wireless power transfer |
| Keyword(4) | Wearable Device |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Katsumi Kawai |
| 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 | 2021-11-18 15:25:00 |
| Presentation Time | 25 minutes |
| Registration for | MW |
| Paper # | MW2021-71 |
| Volume (vol) | vol.121 |
| Number (no) | no.254 |
| Page | pp.24-28 |
| #Pages | 5 |
| Date of Issue | 2021-11-11 (MW) |
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