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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...
This paper deals with an approach to realize a satellite retransmission system for terrestrial digital broadcasting CTV signals by using the 14/12 GHz band transponder for remote island or sparsely populated areas in Japan. To accomplish the satellite retransmission system, (1) snow attenuation due to snow attachment on the antenna dish in snow climate areas in northern parts of Japan should be clarified,...
This paper deals with the unique low rain attenuation characteristics of the Lune-Q antenna, which is used in the satellite retransmission system for terrestrial digital broadcasting CTV signal by using the 14/12 GHz band transponder. To achieve the optimum design of the satellite retransmission system of terrestrial CTV signal, propagation experiments to determine the propagation characteristics...
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