FIELD: antennae.;SUBSTANCE: invention relates to antenna engineering, particularly to antenna arrays and systems. Said objective is achieved by fact that in two-range waveguide-slot antenna array, containing rectangular radiating waveguides, forming a periodic structure of alternating waveguides of lower and upper frequency range and inclined radiating slot on narrow walls of radiating waveguides lower range, emitting surface waveguides upper range is located below radiating surface waveguides lower range, and rear surface of waveguides of lower and upper ranges are located in one plane. At that, inclined radiating slot lower range on narrow waveguide walls lower range enter on wide walls of these waveguides, radiating slots upper range are made in form of longitudinal shifted from the axis of slots on wide walls of waveguides upper range, and on rear surfaces of radiating waveguides are feed waveguides of lower and upper ranges, in wide walls of which are communication slots with radiating waveguides of lower and upper ranges, respectively.;EFFECT: to this invention is improved parameters of directivity diagram of dual-band antenna array with simultaneous achievement of more simple and compact design.;1 cl, 4 dwg
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