Longitudinal slot with changing width cut in rectangular waveguide

Application of longitudinal slots with changing width is considered to be a prospective technique of excitation in the aperture of a slotted radiator cut in the walls of a waveguide structure amplitude and phase distribution which realizes optimal integral radiation characteristics, i.e., radiation far-field pattern and gain. The results of performance examination by the magnetomotive forces method are presented for longitudinal slots with changing width cut in the wide wall of a rectangular waveguide.