MULTIPATH REFLECTOR ANTENNA Russian patent published in 2008 - IPC H01Q15/00 

FIELD: physics, radio.

SUBSTANCE: invention concerns radiotechnics, particularly antenna devices generating multipath beam of directional patterns. Multipath reflector antenna includes parabolic reflector in the form of parallel conductive plates, and focus-offset irradiators. Plate edges form reflector surface. Distance between plates varies according to a linear rule depending on a value in a range from not more than λ_sh/2 to λ_l/2, where λ_sh and λ_l are respectively minimal and maximal wavelength of operating frequency band. Irradiators feature linear dependency of beamwidth on wavelength, and beamwidth of lower operating band frequency corresponding to its aperture size over λ_l.

EFFECT: increased stability of beamwidth and cross-section level of adjoining directional patterns in multipath beam in broad frequency band.

3 cl, 2 dwg