A Slot in the End Wall of a Rectangular Waveguide with a Dielectric Insert as an Irradiator of Fragments of the Material Medium

Irradiator of dielectric objects with super high frequency field, made in the form of a slot in the end wall of a rectangular waveguide with a dielectric insert inside, was studied experimentally and by calculation. The insert was made in the form of a stopper. The effective irradiation is registered when the VSWR at the system input equals nearly 1. This level can be achieved by means of changing the stopper location. In the math model, the outer region is supposed to be a half-space homogeneously filled with dielectric, which may be dissipative. The geometry of irradiated objects is not taken into account. The frequency region, where an effective irradiation takes place, highly depends on the slot length and on an outer dielectric permittivity. The purpose of the paper is to find the frequency at which the effective irradiation takes place.