| Presentation | 2024-03-14 [Invited Talk (Young Researcher)] Design Method of Platform Excitation Antenna and Feeding Structure Takumi Nishime, Hiroshi Hashiguchi, Naobumi Michishita, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Miniaturization and low-profile are required for mobile device antennas. On the other hand, miniaturization and low profile of antenna decreases the radiation efficiency. To improve communication quality, improvement of radiation efficiency is a challenge. In this study, a method of improving the radiation efficiency of the antenna by excitation and radiation of induced current on the surface of the platform was investigated. The optimized location of the antenna for the feeding was determined by the proposed method based on a characteristic mode analysis using an ideal wave source. A small and low-profile feed structure was proposed for the 2.4 GHz band to achieve a total efficiency of more than 20 %. Finally, the relationship between the platform operation and the radiation efficiency is discussed. The result shows that the radiation efficiency depends on the radiation resistance of the excitation element and the platform. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Small antenna / Radiation efficiency / Platform excitation / Characteristic mode analysis / Travelling wave antenna |
| Paper # | AP2023-205 |
| Date of Issue | 2024-03-07 (AP) |
| Conference Information | |
| Committee | AP |
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| Conference Date | 2024/3/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | UNIVERSITY OF FUKUI |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antennas and Propagation |
| Chair | Kunio Sakakibara(Nagoya Inst. of Tech.) |
| Vice Chair | YUAN Qiaowei(Tohoku Inst. of Tech.) |
| Secretary | YUAN Qiaowei(Mitsubishi Electric) |
| Assistant | Tomoki Murakami(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Invited Talk (Young Researcher)] Design Method of Platform Excitation Antenna and Feeding Structure |
| Sub Title (in English) | |
| Keyword(1) | Small antenna |
| Keyword(2) | Radiation efficiency |
| Keyword(3) | Platform excitation |
| Keyword(4) | Characteristic mode analysis |
| Keyword(5) | Travelling wave antenna |
| 1st Author's Name | Takumi Nishime |
| 1st Author's Affiliation | National Defense Academy(National Defense Academy) |
| 2nd Author's Name | Hiroshi Hashiguchi |
| 2nd Author's Affiliation | National Defense Academy(National Defense Academy) |
| 3rd Author's Name | Naobumi Michishita |
| 3rd Author's Affiliation | National Defense Academy(National Defense Academy) |
| Date | 2024-03-14 |
| Paper # | AP2023-205 |
| Volume (vol) | vol.123 |
| Number (no) | AP-441 |
| Page | pp.pp.23-28(AP), |
| #Pages | 6 |
| Date of Issue | 2024-03-07 (AP) |