A estimation of 22GHz slant path propagation characteristics using 12GHz satellite wave

Abstract

This paper describes prediction of attenuation of satellite wave at 22GHz in expectation of satellite broadcasting in the future, using with characteristic of relation between rain attenuation and one-minute rain rate (mm/h) of satellite wave observed at Kagoshima for Jul-Oct, 1995. To predict rain attenuation at 22 GHz, we evaluated effective distance from instant attenuation, using Olesen's aR^b relation with Laws and Parsons dropsize distribution (low). And, we also predicted rain attenuation characteristic at 12GHz, compared with measured one and evaluated the difference of each one.