Abstract

Over the past decades, satellites have been used to provide a variety of services like voice, data, negation and video. Frequencies above 10 GHz provide new opportunities to meet high bandwidth demands especially for small, maritime, areal and mobile land platforms in order to support beyond line of sight requirements for network centric operations. This is possible due to availability of 1 GHz and more bandwidth. This article discusses about attenuation caused by various atmospheric impairments like rain, cloud, fog, dust etc. at Ka band satellite communications. A new cloud model has been also proposed with comparison of ITU model.

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