| Presentation | 2023-11-10 Demonstration for Linear-Circular Polarization Converter Fabricated by 3D Printer in 300 GHz Band Shonosuke Hirokawa, Kiyoto Asakawa, hijiri shimokawadoko, Michihiko Suhara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recently, the terahertz band (frequencies above 300 GHz), which is currently not in commercial use, is expected to be utilized in wireless communications. In order to realize terahertz-band wireless communications in mobile devices, compact terahertz transmitter/receiver devices are required. However, since the relative angles between transmitters and receivers are not constant, the reduction in polarization efficiency cannot be ignored. To solve this problem, we propose a linear-circular polarization converter (LCPC) in terahertz-band that can be fabricated using an optical 3D printer. The purpose of this study is to clarify the feasibility of the LCPC through theoretical analysis using an electromagnetic simulator and fabrication and measurement of the obtained shape. As a result, longitudinal elliptical polarization was observed by the electromagnetic field simulator. The actual measurement results showed oblique elliptical polarization with the major axis around 45°. The results show that the proposed device can convert linearly polarized waves into elliptically polarized waves, although the long axes are different. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Terahertz / Circular polarization / 3D printer / Polarization conversion |
| Paper # | EMT2023-73 |
| Date of Issue | 2023-11-02 (EMT) |
| Conference Information | |
| Committee | EMT / IEE-EMT |
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| Conference Date | 2023/11/9(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kaikyo Messe Shimonoseki |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Electromagnetic Theory, etc. |
| Chair | Hideki Kawaguchi(Muroran Inst. of Tech) / Shinichi Furukawa(Nihon Univ.) |
| Vice Chair | Yukihisa Suzuki(Tokyo Metropolitan Univ.) |
| Secretary | Yukihisa Suzuki(Kyushu Sangyo Univ.) / (Nihon Univ.) |
| Assistant | Ryo Natsuaki(Univ. of Tokyo) / Kazuki Niino(Kyoto Univ.) |
| 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) | Demonstration for Linear-Circular Polarization Converter Fabricated by 3D Printer in 300 GHz Band |
| Sub Title (in English) | |
| Keyword(1) | Terahertz |
| Keyword(2) | Circular polarization |
| Keyword(3) | 3D printer |
| Keyword(4) | Polarization conversion |
| 1st Author's Name | Shonosuke Hirokawa |
| 1st Author's Affiliation | Tokyo Metropolitan College of Industrial Technology(TMCIT) |
| 2nd Author's Name | Kiyoto Asakawa |
| 2nd Author's Affiliation | Tokyo Metropolitan College of Industrial Technology(TMCIT) |
| 3rd Author's Name | hijiri shimokawadoko |
| 3rd Author's Affiliation | Tokyo Metropolitan University(TMU) |
| 4th Author's Name | Michihiko Suhara |
| 4th Author's Affiliation | Tokyo Metropolitan University(TMU) |
| Date | 2023-11-10 |
| Paper # | EMT2023-73 |
| Volume (vol) | vol.123 |
| Number (no) | EMT-251 |
| Page | pp.pp.58-63(EMT), |
| #Pages | 6 |
| Date of Issue | 2023-11-02 (EMT) |