Propagation coefficients for vertically and horizontally polarised waves at 36.5 GHz

The differential attenuation and phase shift between vertically and horizontally polarised waves at 36.5 GHz have been measured on a 13.5 km link and compared with theoretical values from a field point matching analysis. It is seen that the differential phase shift is bounded in a small region about zero and changes in sign according to the size of drops involved, as predicted from theory. Differential attenuation also follows theoretical predictions with on-average values given by Laws-Parsons drop sizes.