Theoretical model for calculating rain-induced crosspolarisation

A very promising technique for increasing the capacity of the allocated frequency bands involves the reuse of the same frequency channel twice with orthogonal polarizations. However, nonspherical scatterers present on the transmission path can cause crosstalk between the two orthogonal channels. This phenomenon is likely to limit the possibilities of the frequency reuse technique. The present investigation is concerned with the presentation of a theoretical model for calculating rain-induced crosspolarization involving a Gaussian canting angle distribution. For a standard deviation equal to zero, the model reduces to the classical equioriented raindrop model.