| Presentation | 2018-03-02 Improvement of the RF-DC conversion efficiency of rectifiers with pulse modulated input Takashi Hirakawa, Naoki Shinohara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Nowadays, the Internet of things (IoT) is attracting our interest. IoT requires a flexible configuration of sensor networks. However, this is hindered by wired-charging sensor. Microwave power transfer (MPT) can be the solution to this problem. MPT interferes with communications and its charging efficiency is lower than the wired charging. The waves, which have high peak-to-average power ratio, are effective in improving the RF-DC conversion efficiency of rectifiers. This study focused on the pulse modulated waves, which have high peak-to-average power ratio. In the MPT with pulse modulated waves, both power and information can be transmitted using time-division multiplexing. In this study, the operation of rectifiers with pulse-modulated input signal is analyzed。We theoret- ically discussed about the RF-DC conversion efficiency of rectifiers with pulse-modulated input and experimented using the fabricated rectifier. We confirmed the consistency of the theoretical and experimental results. As a result, we improve the RF-DC conversion efficiency with low average power input. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microwave / Rectifier / Intermittent wave / Pulse modulation |
| Paper # | WPT2017-75 |
| Date of Issue | 2018-02-23 (WPT) |
| Conference Information | |
| Committee | WPT |
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| Conference Date | 2018/3/2(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 | Tomohiro Seki(Nihon Univ.) |
| Secretary | Tomohiro Seki(Nagoya Inst. of Tech.) |
| Assistant | Takehiro Imura(Univ. of Tokyo) / Masahiro Hanazawa(UL Japan) |
| 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) | Improvement of the RF-DC conversion efficiency of rectifiers with pulse modulated input |
| Sub Title (in English) | |
| Keyword(1) | Microwave |
| Keyword(2) | Rectifier |
| Keyword(3) | Intermittent wave |
| Keyword(4) | Pulse modulation |
| 1st Author's Name | Takashi Hirakawa |
| 1st Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 2nd Author's Name | Naoki Shinohara |
| 2nd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| Date | 2018-03-02 |
| Paper # | WPT2017-75 |
| Volume (vol) | vol.117 |
| Number (no) | WPT-466 |
| Page | pp.pp.39-43(WPT), |
| #Pages | 5 |
| Date of Issue | 2018-02-23 (WPT) |