The longitudinal slot charakteristics in waveguide with dielectric layer, situated parallel to its broad walls

Waveguide slot arrays (WSA) are widely used in ground and onboard radar-tracking, radiorelay, radionavigating systems. There is a danger of occurrence interference maxima of the higher orders in WSA on a hollow waveguides. To avoid occurrence of these maxima, distances between radiators are reduced using different ways. One of them is the use of waveguides of the Π-shaped form, another one consists in reduction of a waveguide width. To pull together radiators within the limits of one linear array and to reduce distances between radiators in the neighboring linear arrays it is possible to use slowing down a wave in a waveguide by insertion a dielectric layer. The purpose of the present work is to research WSA characteristics at partial overlapping along z axis of regions of the neighboring slot arrangements when the slots are cut in a wide wall of the rectangular waveguide with dielectric layer located parallel to its broad walls.