Title :
Ku-band Time-Delayed Diversity/Satellite Diversity (TDD/Sat. D) system for improving link availability using lune-Q antenna
Author :
Hatsuda, Takeshi ; Iwamori, Yasutaka ; Sasaki, Manabu ; Tsushima, Yoshiyuki ; Yosimura, Noriaki ; Kawasaki, Kennitiro ; Zakouji, Takaaki ; Kuroda, Masatosi ; Imai, Katsuyuki ; Maekawa, Yasuyuki
Author_Institution :
Hokkaido Inst. of Technol., Sapporo
Abstract :
This paper deals with the Ku-band time-delayed diversity/satellite diversity (TDD/Sat. D) system, which is combination of a TDD system and a Sat. D system to overcome heavy rain attenuation in the Ku-band Fixed Satellite Service (FSS) systems. To optimize the construction of the TDD/Sat. D system, the Lune-Q antenna is introduced due to its optimum multi-satellite reception characteristics. To verify the characteristics of the TDD/Sat. D system, propagation experiments are carried out between Yokohama and Sapporo earth-stations. The rain attenuation data measured between April and November 2007 are processed for assess the TDD/Sat. D system characteristic. From the calculated results, it can be clarified that by using the TDD/Sat. D system, the satellite link unavailability time percentage can be improved by approximately 1/10 with a delay time tau = 10~20 minutes.
Keywords :
diversity reception; rain; satellite antennas; satellite links; Ku-band fixed satellite service systems; Ku-band time-delayed diversity; Sapporo earth-stations; Yokohama earth-stations; heavy rain attenuation; link availability improvement; lune-Q Antenna; multisatellite reception characteristics; satellite diversity; Artificial satellites; Attenuation; Delay effects; Diversity methods; Frequency selective surfaces; Lenses; Rain; Satellite broadcasting; Satellite communication; TV broadcasting;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619073
