| Presentation | 2015-10-30 A Prototype of Antenna Coil Self-resonant to AM Radio Frequency Band Shingo Otsuka, Norimasa Nakashima, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Performance of antenna plays an important role of higher energy collection efficiency in the energy harvesting of electromagnetic waves. We are studying the energy harvesting by using AM radio frequency band, and an antenna coil is used in the part of the external antenna of rectifying antenna (rectenna) .We assume that the excitation voltage of the antenna coil is mainly caused by the electromagnetic induction. However, we reported that the excitation voltage does not always depend on the increment of the cross-sectional area and the number of turns. According to the measurement of an electromagnetic characteristics of the antenna coil by using a LCR meter, self-resonance occur at a specific frequency. Therefore, we are able to make the rectenna of high energy conversion efficiency by using the antenna coil with self-resonant frequency that is the same as the frequency of a specific broadcasting station. In this paper, we make a prototype of antenna coil which can excite self-resonance in the RKB radio broadcasting frequency, and we measure the output characteristic of the rectenna whose an external antenna is the prototype of antenna coil. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | energy harvesting / AM Radio Broadcasting / rectenna / self-resonance |
| Paper # | EMT2015-73 |
| Date of Issue | 2015-10-22 (EMT) |
| Conference Information | |
| Committee | EMT / IEE-EMT |
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| Conference Date | 2015/10/29(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Holiday Inn ANA Resort Miyazaki |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Electromagnetic Theory, etc. |
| Chair | Motoyuki Sato(Tohoku Univ.) / Masahiro Tanaka(Gifu Univ.) |
| Vice Chair | Akira Hirose(Univ. of Tokyo) |
| Secretary | Akira Hirose(Niigata Univ.) / (Mitsubishi Electric) |
| Assistant | Kazunori Takahashi(Tohoku Univ.) / Yoshihiro Naka(KUHW) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Theory / Technical Meeting on Electromagnetic Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Prototype of Antenna Coil Self-resonant to AM Radio Frequency Band |
| Sub Title (in English) | |
| Keyword(1) | energy harvesting |
| Keyword(2) | AM Radio Broadcasting |
| Keyword(3) | rectenna |
| Keyword(4) | self-resonance |
| 1st Author's Name | Shingo Otsuka |
| 1st Author's Affiliation | Fukuoka Institute of Tecnology(FIT) |
| 2nd Author's Name | Norimasa Nakashima |
| 2nd Author's Affiliation | Fukuoka Institute of Tecnology(FIT) |
| Date | 2015-10-30 |
| Paper # | EMT2015-73 |
| Volume (vol) | vol.115 |
| Number (no) | EMT-279 |
| Page | pp.pp.155-160(EMT), |
| #Pages | 6 |
| Date of Issue | 2015-10-22 (EMT) |