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Paper Abstract and Keywords
Presentation 2006-10-19 17:30
Analysis of the Propagation Field Data on High Elevation Angle for 2GHz and 2.5GHz Bands Mobile Satellite Communications
Isao Nakazawa (NTWL), Kazuhiro Kimura, Hitoshi Ishida, Shin'ichi Hama (NICT)
Abstract (in Japanese) (See Japanese page) 
(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) 
(in English) 2GHz Band / 2.5GHz Band / Mobile satellite communications / High elevation angle propagation / Wall reflection / / /  
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Conference Information
Committee SAT  
Conference Date 2006-10-19 - 2006-10-20 
Place (in Japanese) (See Japanese page) 
Place (in English) KAL Hotel (Jeju-Do, Korea) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite Communications, etc. (JC-SAT2006) 
Paper Information
Registration To SAT 
Conference Code 2006-10-SAT 
Language English (Japanese title is available) 
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 
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  
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1st Author's Name Isao Nakazawa  
1st Author's Affiliation NT Wireless Laboratory (NTWL)
2nd Author's Name Kazuhiro Kimura  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
3rd Author's Name Hitoshi Ishida  
3rd Author's Affiliation National Institute of Information and Communications Technology (NICT)
4th Author's Name Shin'ichi Hama  
4th Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2006-10-19 17:30:00 
Presentation Time 25 minutes 
Registration for SAT 
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