| Presentation | 2021-09-10 A 920MHz band rectenna with impedance transformed small loop antenna Yuki Muramoto, Naoki Sakai, Kenji Itoh, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Small loop antennas have technical features of miniaturized size and less degradation with closing ground metals or human bodies. Furthermore, extreme high impedance more than 10 kΩcan be obtained for high-sensitive rectennas in μW operation. However, they are not suitable for antennas with kΩ-class impedance, due to enlarged size. In this report, the impedance transformed small loop antenna with two series capacitances Cs at the output port is proposed for miniaturization of the kΩ-class small loop antenna. The series capacitances Cs realize functionality of impedance transforming. Small sized 10 kΩ-class small loop antenna can be connected with the rectifier that requires kΩ-class impedance. As a result, the rectenna with the impedance transformed small loop antenna achieves the halved size compared with the conventional one. The measured rectification efficiency of 34 % at the input power of -10 dBm is obtained, and this is the almost same one as the conventional case. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Rectenna / Rectifier / Small loop antenna / SBD |
| Paper # | MW2021-37 |
| Date of Issue | 2021-09-02 (MW) |
| Conference Information | |
| Committee | MW / AP |
|---|---|
| Conference Date | 2021/9/9(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave, Millimeter wave |
| Chair | Noriharu Suematsu(Tohoku Univ.) / Hiroshi Yamada(Niigata Univ.) |
| Vice Chair | Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Hideyuki Nakamizo(Mitsubishi Electric) / Mitoshi Fujimoto(Fukui Univ) |
| Secretary | Tadashi Kawai(Saitama Univ.) / Kensuke Okubo(Toshiba) / Hideyuki Nakamizo(NTT DOCOMO) / Mitoshi Fujimoto(National Defense Academy) |
| Assistant | Naoki Hasegawa(Softbank) / Kosuke Katayama(Waseda Univ.) / Dr. Kim(Niigata Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves / Technical Committee on Antennas and Propagation |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A 920MHz band rectenna with impedance transformed small loop antenna |
| Sub Title (in English) | |
| Keyword(1) | Rectenna |
| Keyword(2) | Rectifier |
| Keyword(3) | Small loop antenna |
| Keyword(4) | SBD |
| 1st Author's Name | Yuki Muramoto |
| 1st Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| 2nd Author's Name | Naoki Sakai |
| 2nd Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| 3rd Author's Name | Kenji Itoh |
| 3rd Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| Date | 2021-09-10 |
| Paper # | MW2021-37 |
| Volume (vol) | vol.121 |
| Number (no) | MW-169 |
| Page | pp.pp.24-29(MW), |
| #Pages | 6 |
| Date of Issue | 2021-09-02 (MW) |