Dual polarized electronically scanned antenna

Details Dual polarized electronically scanned antenna Dual polarized electronically scanned antenna

1997-06-20

1999-12-28

Wong, Don

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

343770, 343771, 343778, H01Q 1310

Patent

active

060087757

ABSTRACT:
A phased array includes a first plurality of radiators having a first polarization and a second plurality of radiators having a second polarization, different from said first polarization. The phased array is constructed such that radiating patterns of the first and second plurality of radiators are congruent. The radiators are constructed so that they radiating apertures thereof can occupy virtually the same space, i.e., the spacing of the radiating elements is less than a wavelength. Other features provided allow this compactness to be achieved. Impedance matching features are integrated into the radiators themselves. The elevation assemblies of the radiators are mated together, and then are coupled across to their respective azimuth assemblies. Two azimuth assemblies for either type of polarization may be provided when monopulse operation is required. Assemblies for both polarizations transmit sequentially, but receive simultaneously, thus allowing a complete polarization matrix to be collected with two pulse transmissions.

REFERENCES:
patent: 3281851 (1966-10-01), Goebels
patent: 3518689 (1970-06-01), Algeo et al.
patent: 3599216 (1971-08-01), Paine
patent: 3701162 (1972-10-01), Seaton
patent: 4716415 (1987-12-01), Kelly
patent: 5140335 (1992-08-01), Staehlin et al.
patent: 5543810 (1996-08-01), Park

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