| Presentation | 2019-07-19 Development of transmission and reception antennas for wireless power transmission in the capsule endoscope Kyohei Yoshida, Masaharu Takahashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, a capsule endoscope has been developed for decreasing the burden of patients. Current capsule endoscopes use a built-in battery as a power source. It is not preferable to use a battery harmful to the human body for the capsule endoscope. Therefore, wireless power transmission to capsule endoscopes has been proposed. In this research, since the radio wave radiation method is adopted, the development of transmission and reception antennas is required. We designed the Archimedes spiral antenna as the transmission antenna and the helical antenna as the reception antenna operating at 433.92 MHz. We have computed the reflection coefficient of the antennas using the finite-difference time-domain (FDTD) method. The reflection coefficient showed a sufficiently usable value at the desired frequency. And the change of a transmission efficiency by the distance between the antennas was investigated by using a simple human body model. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Capsule endoscope / Wireless power transmission / Spiral antenna / Helical antenna |
| Paper # | WPT2019-25 |
| Date of Issue | 2019-07-12 (WPT) |
| Conference Information | |
| Committee | EMCJ / EMD / WPT |
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| Conference Date | 2019/7/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kensei Oh(Nagoya Inst. of Tech.) / Shinichi Wada(TMC System) / Masaharu Takahashi(Chiba Univ.) |
| Vice Chair | Atsuhiro Nishikata(Tokyo Inst. of Tech.) / Yoshiki Kayano(Univ. of Electro-Comm.) |
| Secretary | Atsuhiro Nishikata(Tokyo Inst. of Tech.) / Yoshiki Kayano(Denso) / (Fuji Electric) |
| Assistant | Nami Sasaki(Seiwa Electric MFG) / Hiroyoshi Shida(Tokin) / Sho Muroga(Akita Univ.) / Yuichi Hayashi(ＮＡＩＳＴ) / Nozomi Haga(Gunma Univ.) / Osamu Kagaya(AGC) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Compatibility / Technical Committee on Electromechanical Devices / 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) | Development of transmission and reception antennas for wireless power transmission in the capsule endoscope |
| Sub Title (in English) | |
| Keyword(1) | Capsule endoscope |
| Keyword(2) | Wireless power transmission |
| Keyword(3) | Spiral antenna |
| Keyword(4) | Helical antenna |
| 1st Author's Name | Kyohei Yoshida |
| 1st Author's Affiliation | Chiba University(Chiba Univ.) |
| 2nd Author's Name | Masaharu Takahashi |
| 2nd Author's Affiliation | Chiba University(Chiba Univ.) |
| Date | 2019-07-19 |
| Paper # | WPT2019-25 |
| Volume (vol) | vol.119 |
| Number (no) | WPT-135 |
| Page | pp.pp.19-22(WPT), |
| #Pages | 4 |
| Date of Issue | 2019-07-12 (WPT) |