A rigorous model for axially-symmetric radiators of pulsed waves

In the present work, we solve a problem of the appropriate and efficient truncation of the computational domain (a principal problem of computational electrodynamics) in so-called open problems (the problems where the computational domain is infinite along one or more spatial coordinates) for the case of TE- and TM-waves in axially-symmetrical open compact resonators with waveguide feed lines. Also, a number of questions have been considered that occur when solving far-field problems and problems involving extended sources or sources located in the far-zone.