| Presentation | 2009-07-17 Antenna Space Diversity and Polarization Mismatch in Wideband 60GHz-Millimeter-wave Wireless Yi Jiang, Jing Gao, Keren Li, Hiroshi Harada, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a study on the fading behavior in wideband 60GHz-Millimeter-wave (MMW) wireless system. The evaluation is carried out based on a two-ray propagation model, with considering the large propagation loss of the multi-reflected waves other than the first reflected wave at 60GHz-millimeter-wave. The study focuses on the strong fading effect due to the large variation of antenna location compared to the short wavelength (about 5mm) and the wide frequency range (about 9GHz) in such MMW wireless system. The influence of the polarization mismatch of antenna is also investigated. To reduce the fading, we employ the technique of space diversity by introducing two or more antennas in receiving side. We perform an optimization of the locations (heights) for these antennas. From the simulation results, we obtain some optimal heights with which the fading effect can be reduced in less than 3dB. The simulation results also reveal how the polarization mismatch, in two different cases of antenna rotations, influences the system performance, and how space diversity reduce the fading as well. The antenna used in simulation is a planar patch antenna which is considered suitable for portable wireless handset. The radiation pattern is obtained from electromagnetic simulation. This paper demonstrates that by employing multiple antennas with optimized antenna locations can significantly reduce the fading for the 60GHz-MMW wireless system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 60GHz-Millimeter-wave / WPAN / Fading / Space Diversity / Polarization Mismatch / Planar patch antenna |
| Paper # | RCS2009-77 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2009/7/9(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Radio Communication Systems (RCS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Antenna Space Diversity and Polarization Mismatch in Wideband 60GHz-Millimeter-wave Wireless |
| Sub Title (in English) | |
| Keyword(1) | 60GHz-Millimeter-wave |
| Keyword(2) | WPAN |
| Keyword(3) | Fading |
| Keyword(4) | Space Diversity |
| Keyword(5) | Polarization Mismatch |
| Keyword(6) | Planar patch antenna |
| 1st Author's Name | Yi Jiang |
| 1st Author's Affiliation | Beijing University of Posts and Telecommunications:National Institute of Information and Communication Technology() |
| 2nd Author's Name | Jing Gao |
| 2nd Author's Affiliation | Beijing University of Posts and Telecommunications |
| 3rd Author's Name | Keren Li |
| 3rd Author's Affiliation | Beijing University of Posts and Telecommunications |
| 4th Author's Name | Hiroshi Harada |
| 4th Author's Affiliation | Beijing University of Posts and Telecommunications |
| Date | 2009-07-17 |
| Paper # | RCS2009-77 |
| Volume (vol) | vol.109 |
| Number (no) | 130 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |