| Presentation | 2023-09-28 A Study on Beam Spreading Reflectarray for Non-Line-of-Sight Communications in Millimeter-wave Band Takayuki Matsumuro, Kazunobu Serizawa, Susumu Ano, Satoru Shimizu, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | One of the challenges of millimeter-wave band wireless communications is that they are highly linear and difficult to diffract. In this study, we propose a beam-spreading reflectarray for transmitting control signals to non-line-of-sight nodes in a wire-free robot in which both power and communication are wireless. The end-fire condition was satisfied by arranging reflective elements with reflection phases in-phase and anti-phase at half-wavelength intervals in order to reflect vertically incident signals in the horizontal direction. In addition, to prevent cancellation in adjacent rows, three types of patch elements with reflection phases of 0, π, and 2π were used. We created an analytical model on an electromagnetic field simulator and were able to confirm the increase of reflected waves in the horizontal direction in both the E-plane and the H-plane. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Reflectarray / End-fire array / Patch antenna / Millimeter-wave band / NLOS |
| Paper # | AP2023-78 |
| Date of Issue | 2023-09-21 (AP) |
| Conference Information | |
| Committee | MW / AP |
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| Conference Date | 2023/9/28(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kochi Castle Museum of History |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave, Millimeter wave |
| Chair | Kensuke Okubo(Okayama Prefectural Univ.) / Kunio Sakakibara(Nagoya Inst. of Tech.) |
| Vice Chair | Atsushi Sanada(Osaka Univ.) / Akihito Hirai(Mitsubishi Electric) / YUAN Qiaowei(Tohoku Inst. of Tech.) |
| Secretary | Atsushi Sanada(Univ. of Electro-Comm) / Akihito Hirai(Murata Manufacturing) / YUAN Qiaowei(Iwate Univ.) |
| Assistant | Tomoyuki Furuichi(Tohoku Univ.) / Kosuke Katayama(NIT Tokuyama College) / Tomoki Murakami(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves / 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) | A Study on Beam Spreading Reflectarray for Non-Line-of-Sight Communications in Millimeter-wave Band |
| Sub Title (in English) | |
| Keyword(1) | Reflectarray |
| Keyword(2) | End-fire array |
| Keyword(3) | Patch antenna |
| Keyword(4) | Millimeter-wave band |
| Keyword(5) | NLOS |
| 1st Author's Name | Takayuki Matsumuro |
| 1st Author's Affiliation | Advanced Telecommunications Research Institute International(ATR) |
| 2nd Author's Name | Kazunobu Serizawa |
| 2nd Author's Affiliation | Advanced Telecommunications Research Institute International(ATR) |
| 3rd Author's Name | Susumu Ano |
| 3rd Author's Affiliation | Advanced Telecommunications Research Institute International(ATR) |
| 4th Author's Name | Satoru Shimizu |
| 4th Author's Affiliation | Advanced Telecommunications Research Institute International(ATR) |
| Date | 2023-09-28 |
| Paper # | AP2023-78 |
| Volume (vol) | vol.123 |
| Number (no) | AP-194 |
| Page | pp.pp.1-3(AP), |
| #Pages | 3 |
| Date of Issue | 2023-09-21 (AP) |