Yu. G. Belov, E. Yu. Gaynulina, D. N. Kravtsov, V. V. Sherbakov
On the basis of the Huigens-Kirchhoff method the radiation field from the horn of round dielectric guide, that axially placed in the metal shield, was calculated. There expressions for calculating are shown for the cylindrical coordinate system associated with the axis of waveguide. There results of calculation of amplitude and phase distributions are shown in this coordinate system for arbitrary distance of observation point from the horn (for long-distance and for intermediate and near zone).