Common aperture dual polarization array fed by rectangular waveg

Details Common aperture dual polarization array fed by rectangular waveg Common aperture dual polarization array fed by rectangular waveg

1995-06-06

1996-08-06

Hajec, Donald T.

Communications: radio wave antennas

Antennas

Slot type

343770, 333114, H01Q 1312

Patent

active

055438105

ABSTRACT:
A dual polarization array that comprises horizontal polarization and vertical polarization arrays, combined with an efficient waveguide-fed standing wave feed array. The vertical polarization array comprises an offset, resonant, iris-fed, centered longitudinal-shunt-slot, standing wave array. The horizontal polarization array comprises a flared dipole fed by a longitudinal, shunt-slot, standing wave array. The waveguide-fed standing wave feed array is comprised of a plurality of waveguides that separately feed the horizontal polarization and vertical polarization arrays. The horizontal polarization array comprises a first plurality of radiating waveguides laterally disposed adjacent to each other that are separated by a first plurality of gaps. Each waveguide comprises a plurality of radiating flared dipoles disposed adjacent to a respective plurality of longitudinal radiating shunt slots. The vertical polarization array comprises a second plurality of radiating waveguides laterally disposed adjacent to each other that are separated by a second plurality of gaps. The second plurality of radiating waveguides are laterally offset from the first plurality of radiating waveguides. Each of the second plurality of radiating waveguides comprises a plurality of longitudinal shunt slots disposed in respective gaps between adjacent radiating waveguides of the horizontal polarization array, and an offset resonant iris centered on each respective longitudinal shunt slot that is oriented orthogonal thereto. A first feed waveguide includes a plurality of tilted series/series coupling slots for coupling horizontal polarization to the waveguides of the horizontal polarization standing wave array. A second feed waveguide comprises a plurality of shunt slots comprising iris loaded transverse series/shunt coupling slots for coupling vertical polarization to the waveguides of the vertical polarization standing wave array.

REFERENCES:
patent: 2636082 (1953-04-01), Saad
patent: 3518576 (1970-06-01), Algeo
patent: 3537037 (1970-10-01), Brumbaugh
patent: 3594806 (1971-07-01), Black
patent: 5019831 (1991-05-01), Yee et al.
patent: 5030965 (1991-07-01), Park et al.
patent: 5210543 (1993-05-01), Kultz
patent: 5270724 (1993-12-01), Ajioka

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