| Presentation | 2020-12-10 Circular Loop Antenna Array Integrated on Low-Permittivity Substrate for OAM Multiplexing Communication Systems Haruki Kikuchi, Akira Saito, Hisanosuke Miyake, Wataru Wada, Hiroshi Suzuki, Ryo Ishikawa, Kazuhiko Honjo, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, OAMmultiplexing using orbital angular momentum (OAM) of electromagnetic waves has been attracting attention, and it is expected to expand the communication capacity significantly. On the other hand, near-field communication using smartphones is becoming more popular. It is expected that mounting an OAM communication antenna on smartphones and other devices will greatly improve the communication capacity. In this paper, the integration of an antenna array with a circular loop antenna array is studied and evaluated for the practical application of OAM communication with a reflector. Teflon was used as an integrated substrate because of its low dielectric constant. Loops are placed on the surface of the board, and the terminals are pulled out to the backside of the board through vias, in anticipation of the placement of baluns and matching circuits. In the configuration with a communication distance of 4mm and 180 degturned terminal orientation, the best communication characteristics are obtained and a Isolation-of-transmission of 20.8 dB, which is comparable to that of the conventional method. In addition, the relationship between the channel matrix of the 8-terminal I/O circuit, eigenvalue and eigenmode transmission is discussed. In the case of OAM-MIMO communication using signal processing for OAM communication, it is considered important to perform efficient eigenmode transmission using only an antenna array because it is equivalent to having infinite Isolation-of-transmittion. This paper introduces eigenvalues corrected for antenna return loss and evaluates the efficiency of eigenmode transmission. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Loop antenna / OAM / Multiplexing / Integration |
| Paper # | MW2020-74 |
| Date of Issue | 2020-12-03 (MW) |
| Conference Information | |
| Committee | MW |
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| Conference Date | 2020/12/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yoshinori Kogami(Utsunomiya Univ.) |
| Vice Chair | Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric) |
| Secretary | Tadashi Kawai(Fujitsu Labs.) / Kensuke Okubo(Saitama Univ.) / Shintaro Shinjo |
| Assistant | Kyoya Takano(Tokyo Univ. of Science) / Naoki Hasegawa(Softbank) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Circular Loop Antenna Array Integrated on Low-Permittivity Substrate for OAM Multiplexing Communication Systems |
| Sub Title (in English) | |
| Keyword(1) | Loop antenna |
| Keyword(2) | OAM |
| Keyword(3) | Multiplexing |
| Keyword(4) | Integration |
| 1st Author's Name | Haruki Kikuchi |
| 1st Author's Affiliation | The University of Electro-Comunication(UEC) |
| 2nd Author's Name | Akira Saito |
| 2nd Author's Affiliation | The University of Electro-Comunication(UEC) |
| 3rd Author's Name | Hisanosuke Miyake |
| 3rd Author's Affiliation | The University of Electro-Comunication(UEC) |
| 4th Author's Name | Wataru Wada |
| 4th Author's Affiliation | The University of Electro-Comunication(UEC) |
| 5th Author's Name | Hiroshi Suzuki |
| 5th Author's Affiliation | The University of Electro-Comunication(UEC) |
| 6th Author's Name | Ryo Ishikawa |
| 6th Author's Affiliation | The University of Electro-Comunication(UEC) |
| 7th Author's Name | Kazuhiko Honjo |
| 7th Author's Affiliation | The University of Electro-Comunication(UEC) |
| Date | 2020-12-10 |
| Paper # | MW2020-74 |
| Volume (vol) | vol.120 |
| Number (no) | MW-280 |
| Page | pp.pp.18-23(MW), |
| #Pages | 6 |
| Date of Issue | 2020-12-03 (MW) |