TWO-BAND ANTENNA ARRAY Russian patent published in 2005 - IPC

FIELD: microwave engineering; frequency-scanned antenna arrays.

SUBSTANCE: radar-station frequency-scanned antenna array has sinuous waveguide with couplers periodically separated through one period of this waveguide that function to excite radiator strips; sinuous waveguide turn length is chosen to equal odd number of half-waves for intermediate frequencies of each band; couplers are made in the form of waveguide-to-strip directional coupler and radiator strip, in the form of multichannel strip power splitter whose outputs function to excite radiating windows in side wall of rectangular waveguide by means of mode converter.

EFFECT: provision for array operation in two separated frequency bands and for aligning beams in azimuth plane.

1 cl, 7 dew