| Presentation | 2020-12-10 High-Efficiency Wide-Dynamic-Power-Range Rectifier with Adaptive Self-Gate-Biasing Jun Yamazaki, Ryo Ishikawa, Kazuhiko Honjo, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In RF energy harvesting and wireless power transfer, it is required to develop rectifiers having wide dynamic range characteristic since a received power level varies with a distance between transmitters and receivers and environment. In transistor rectifiers designed based on time-reversal duality with amplifiers, a peak of the RF-DC conversion efficiency tends to shift to the higher input power region by decreasing the gate-bias voltage from the threshold voltage. In this report, to utilize the above characteristic, a wide-dynamic-range high-efficiency rectifier configuration combining a main rectifier for operating high efficiency and a sub rectifier for applying an appropriate gate-bias voltage to the main rectifier according to input power has been proposed. A fabricated rectifier with zero-threshold GaAs HEMTs exhibited a RF-to-DC power conversion efficiency of more than 60% and 70% for an input power from 0 to 25 dBm and 9 to 24 dBm, respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Energy harvesting / Wireless power transfer / Transistor rectifier |
| Paper # | MW2020-72 |
| Date of Issue | 2020-12-03 (MW) |
| Conference Information | |
| Committee | MW |
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| Conference Date | 2020/12/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yoshinori Kogami(Utsunomiya Univ.) |
| Vice Chair | Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric) |
| Secretary | Tadashi Kawai(Fujitsu Labs.) / Kensuke Okubo(Saitama Univ.) / Shintaro Shinjo |
| Assistant | Kyoya Takano(Tokyo Univ. of Science) / Naoki Hasegawa(Softbank) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | High-Efficiency Wide-Dynamic-Power-Range Rectifier with Adaptive Self-Gate-Biasing |
| Sub Title (in English) | |
| Keyword(1) | Energy harvesting |
| Keyword(2) | Wireless power transfer |
| Keyword(3) | Transistor rectifier |
| 1st Author's Name | Jun Yamazaki |
| 1st Author's Affiliation | The University of Electro-Communications(UEC) |
| 2nd Author's Name | Ryo Ishikawa |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC) |
| 3rd Author's Name | Kazuhiko Honjo |
| 3rd Author's Affiliation | The University of Electro-Communications(UEC) |
| Date | 2020-12-10 |
| Paper # | MW2020-72 |
| Volume (vol) | vol.120 |
| Number (no) | MW-280 |
| Page | pp.pp.7-11(MW), |
| #Pages | 5 |
| Date of Issue | 2020-12-03 (MW) |