HORN ANTENNA Russian patent published in 2012 - IPC H01Q13/00 

FIELD: radio engineering.

SUBSTANCE: broadband antenna with a conical (funnelled) beam pattern, comprising a sector of radial waveguide line with an apex angle which defines the given width of the beam pattern in the horizontal (E-plane), excited by a narrow rectangular waveguide with an electric field vector E parallel to the wide walls of the radial waveguide which forms a cylindrical 'aperture', a transition section whose wide walls are in form of parallel toroidally arched surfaces, which form an acute angle with the E-plane, and a radiating mouth whose wide walls are in form of non-parallel conical surfaces bounded by common narrow walls.

EFFECT: design of antennae which form conical sector-shaped beam patterns in space in the frequency band of a standard waveguide.

5 dwg