| Presentation | 2023-11-22 [Short Paper] A Study on Port Arrangement of Analog Beamforming Network Using 3-dimensional Luneburg Lens Maki Arai, Mikio Hasegawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this report, we propose a method to design an input/output-port arrangement using a directivity correlation matrix for an analog beamforming network with a 3-dimensional Luneburg lens. To increase the capacity of future wireless communication systems, high-frequency bands such as millimeter waves are useful. Since the high-frequency bands have high linearity and high propagation loss, it is essential to form high-gain beams using a large number of antenna elements with a phase control feeding circuit, called as a beamforming network. While increasing the number of antenna elements enables higher gain in a specific direction, the wiring for the beamforming network becomes more complex. To solve the problem, the authors have proposed a beamforming network using a 3-dimensional Luneburg lens, which provides multiple input and output signals corresponding to each antenna element through a spherical dielectric lens. The proposed configuration enables simple wiring and beamforming in both horizontal and vertical directions with a single lens. In this report, we define an objective function that minimizes the angular correlation of beam directivity to derive the optimal port arrangement of the proposed beamforming network. Furthermore, we evaluate the characteristic of channel capacity in the case of the array antenna with half-wavelength spacing using the proposed beamforming network. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | massive MIMO / beamforming / directivity correlation matrix / channel capacity |
| Paper # | SRW2023-34 |
| Date of Issue | 2023-11-14 (SRW) |
| Conference Information | |
| Committee | SRW / SeMI |
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| Conference Date | 2023/11/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Koganei Campus, Tokyo University of Agriculture and Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | IoT Workshop |
| Chair | Keiichi Mizutani(Kyoto Univ.) / Kazuya Monden(Hitachi) |
| Vice Chair | Kentaro Saito(Tokyo Denki Univ.) / Hirokazu Sawada(NICT) / Yasunori Owada(NICT) / Shunsuke Saruwatari(Osaka Univ.) |
| Secretary | Kentaro Saito(Kochi Univ, of Tech.) / Hirokazu Sawada(Niigata Univ.) / Yasunori Owada(NTT DOCOMO) / Shunsuke Saruwatari(Tokyo Univ. of Agri. and Tech.) |
| Assistant | Maki Arai(Tokyo Univ. of Science) / Yusuke Kouda(Kyoto Univ.) / Yuki Matsuda(NAIST) / Taku Suzuki(Hitachi) / Takeshi Hirai(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Short Range Wireless Communications / Technical Committee on Sensor Network and Mobile Intelligence |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Short Paper] A Study on Port Arrangement of Analog Beamforming Network Using 3-dimensional Luneburg Lens |
| Sub Title (in English) | |
| Keyword(1) | massive MIMO |
| Keyword(2) | beamforming |
| Keyword(3) | directivity correlation matrix |
| Keyword(4) | channel capacity |
| 1st Author's Name | Maki Arai |
| 1st Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| 2nd Author's Name | Mikio Hasegawa |
| 2nd Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| Date | 2023-11-22 |
| Paper # | SRW2023-34 |
| Volume (vol) | vol.123 |
| Number (no) | SRW-275 |
| Page | pp.pp.31-31(SRW), |
| #Pages | 1 |
| Date of Issue | 2023-11-14 (SRW) |