Boundary value problem of finding the function of a source, creating a predetermined radiation field

Is formulated self-consistently the problem of radiation, which leads to a system of homogeneous Fredholm integral equations of 2nd kind with respect to the fields over the aperture of the emitter. It is shown that this system of equations allows to determine the function of the source, creating a desired field of radiation. The problem of calculating the radiation field from the end of a round open dielectric waveguide. It is shown that for algebraically integral equations in problems of this type can be used successfully the collocation method are.