Scattering Due to Rain in Brazil for Millimeter Waves

Wireless telecommunications systems operating in the millimeters waveband are heavily affected by rain, signal attenuations occur due to absorption and scattering caused by hydrometeors. Scattering by raindrops can cause interference between wireless systems operating in the millimeter wave range. This paper presents a method of calculating the scattering cross section of raindrop in the millimeter wave range using the Mie theory in some regions of Brazil. The calculations will be based on measurements of the precipitation rate measured in different regions of Brazil and will be compared with the precipitation rates provided by Recommendation ITU-R P.837-6.