As the next generation satellite broadcasting system, the system which uses the K-band, such as 22GHz band, have been studied. For the design of this kind of system, it is necessary to have detailed knowledge of the wave propagation characteristics along satellite-to-earth path. In this paper, propagation characteristics ; rain attenuation, cross-polarization discrimination, etc., in the K-band are explained together with mitigation technologies of those effects. One system example of K-band satellite broadcasting is proposed, in which time-diversity technology is introduced to compensate the rain attenuation.
