| Presentation | 2006/10/12 Analysis of the Propagation Field Data on High Elevation Angle for 2GHz and 2.5GHz Bands Mobile Satellite communications(Antennas and Propagation) Isao NAKAZAWA, Kazuhiro KIMURA, Hitoshi ISHIDA, Shin'ichi HAMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The receiving revel of mobile satellite communication using the communication and broadcasting engineering test satellite (COMETS) was found to a deep fading characteristic when the satellite elevation angle was between 78 and 81 degrees. We conducted a detailed field study on high satellite elevation angle propagation on 2GHz and 2.5GHz bands in urban area there are many high buildings. We measured the receiving level of uplink/downlink transmissions between pseudo-satellite equipment and pseudo-terminal equipment (on-board antenna included). The equipment was set so that the satellite elevation angle from the horizontal was between 70 and 88 degrees. The results showed that left handed circular polarization (LHCP) receiving levels had a characteristic deep fading of 20-30dB due to the signal being reflected off a wall. When the terminal equipment moves near the building wall, we report on the result of review of the validity of the proposed high satellite elevation angle wall reflection model by the analytical result of the receiving level variations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 2GHz Band / 2.5GHz Band / Mobile satellite communications / High elevation angle propagation / Wall reflection |
| Paper # | SAT2006-30 |
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| Committee | SAT |
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| Conference Date | 2006/10/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of the Propagation Field Data on High Elevation Angle for 2GHz and 2.5GHz Bands Mobile Satellite communications(Antennas and Propagation) |
| Sub Title (in English) | |
| Keyword(1) | 2GHz Band |
| Keyword(2) | 2.5GHz Band |
| Keyword(3) | Mobile satellite communications |
| Keyword(4) | High elevation angle propagation |
| Keyword(5) | Wall reflection |
| 1st Author's Name | Isao NAKAZAWA |
| 1st Author's Affiliation | NT Wireless Laboratory() |
| 2nd Author's Name | Kazuhiro KIMURA |
| 2nd Author's Affiliation | National Institure of Infomation and Communications Technology |
| 3rd Author's Name | Hitoshi ISHIDA |
| 3rd Author's Affiliation | National Institure of Infomation and Communications Technology |
| 4th Author's Name | Shin'ichi HAMA |
| 4th Author's Affiliation | National Institure of Infomation and Communications Technology |
| Date | 2006/10/12 |
| Paper # | SAT2006-30 |
| Volume (vol) | vol.106 |
| Number (no) | 303 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |