WAVEGUIDE-SLOT RADIATOR Russian patent published in 2021 - IPC H01Q13/00 

FIELD: antennas.

SUBSTANCE: invention relates to antenna technology, particularly, to antenna apparatuses for directed radiation of an ultra high frequency signal, and can be used in development of meteorological, with a synthetic aperture, detection, tracking, weapon control radio location stations. The waveguide-slot radiator is comprised of parallel sections of rectangular waveguides, coupled in pairs by the outer wide walls thereof, and rectangular prisms. In one of the narrow walls of all sections of rectangular waveguides, radiating slots are made in form of a combination of an inclined slot and additional slots. Each of the inclined slots corresponds with two additional slots located at an angle to the inclined slot and on opposite sides thereof. Each of the ends of the inclined slot matches the end of one of the additional slots. The additional slots are parallel to the wide walls of the rectangular waveguide sections, providing lower sensitivity of the waveguide-slot radiator less to manufacturing errors. The rectangular prisms are placed between the radiating slots on the surface of the waveguide-slot radiator formed by the outer surfaces of the narrow walls of the rectangular waveguide sections. The faces of the rectangular prisms are perpendicular to the wide walls of the rectangular waveguide sections. On the face of the rectangular prisms parallel to the outer surfaces of the narrow walls of rectangular waveguide sections but not matching them, a flat radio-transparent fairing can be installed in form of a sheet of dielectric material with a low dielectric loss tangent value to protect the waveguide-slot radiator from external affecting factors.

EFFECT: technical result is the creation of a waveguide-slot radiator, the design whereof ensures reduced dependence of characteristics thereof on forming errors during manufacture and obtained characteristics close to theoretically possible.

1 cl, 2 dwg