| Presentation | 2017-08-25 Propagation analysis of 920MHz band by Ray Tracing method composed of Reinforced concrete walls Genma Hattori, Yasuhiro Tsunemitsu, Toshiyuki Maeyama, Toshiyasu Tanaka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order for IoT devices to penetrate widely, appropriate area design is necessary. ITU-R P. 1238 propose general propagation loss calculation formula is proposed, but because it is an equation to calculate the average propagation loss, the material of the wall surface and the incident angle etc are not taken into consideration. Therefore, it is necessary to obtain a detailed propagation loss for the area design of the IoT device. The authors have shown that the transmission loss of the radio wave of the reinforced concrete wall at 920 MHz band has incidence angle characteristics by FDTD method and actual measurement so far. In this paper, we propose a simplified formula of the angle characteristic of the transmission loss of radio waves to a reinforced concrete wall of 928 MHz. We incorporated it into the ray tracing method and investigated the propagation characteristics of the radio wave in the reinforced concrete wall. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Radio Wave Propagation / Indoor / Reinforced Concrete / Building Material / FDTD / Ray Tracing Method |
| Paper # | AP2017-79 |
| Date of Issue | 2017-08-17 (AP) |
| Conference Information | |
| Committee | AP |
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| Conference Date | 2017/8/24(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | National Institute of Technology, Hakodate College |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antennas and Propagation |
| Chair | Jiro Hirokawa(Tokyo Tech.) |
| Vice Chair | Ryo Yamaguchi(SoftBank) |
| Secretary | Ryo Yamaguchi(NTT DoCoMo) |
| Assistant | Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric) |
| 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) | Propagation analysis of 920MHz band by Ray Tracing method composed of Reinforced concrete walls |
| Sub Title (in English) | |
| Keyword(1) | Radio Wave Propagation |
| Keyword(2) | Indoor |
| Keyword(3) | Reinforced Concrete |
| Keyword(4) | Building Material |
| Keyword(5) | FDTD |
| Keyword(6) | Ray Tracing Method |
| 1st Author's Name | Genma Hattori |
| 1st Author's Affiliation | Takushoku University(Takushoku Univ.) |
| 2nd Author's Name | Yasuhiro Tsunemitsu |
| 2nd Author's Affiliation | Takushoku University(Takushoku Univ.) |
| 3rd Author's Name | Toshiyuki Maeyama |
| 3rd Author's Affiliation | Takushoku University(Takushoku Univ.) |
| 4th Author's Name | Toshiyasu Tanaka |
| 4th Author's Affiliation | Microwave Factory Co.,Ltd.(MWF) |
| Date | 2017-08-25 |
| Paper # | AP2017-79 |
| Volume (vol) | vol.117 |
| Number (no) | AP-181 |
| Page | pp.pp.59-64(AP), |
| #Pages | 6 |
| Date of Issue | 2017-08-17 (AP) |