抄録
Satelite broadcasting in the 21-GHz band is expected to transmit large-capacity signals such as Super Hi-Vision using wide band transmission scheme. However, this band suffers from large rain attenuation. We have been studying rain fading mitigation technique using phased array antenna. In this system, the radiation pattern changes dynamically in accordance with the movement of the heavy rainfall area. In this paper, we calculate the relation between the power flux desities and the annual service availability in each city because the rain attenuaion has regional characteristics. And we propose an example system configuration of the 21-GHz band broadcasting satellite.
