抄録
In order to utilize the higher frequency band such as of 21 GHz for the satellite broadcasting, a countermeasure may be necessary against the heavy rain attenuation. This paper describes a system with the multi-beam antenna of 4 to 15 beams to cover the whole land of Japan. In order to simulate this system, the use of rain data in the meteorological AMeDAS data is made. By the use of this system an efficient service may be available by a 110W transmitter with 15-beam system at the 21 GHz band.
