Northrop Grumman Systems Corporation

Terry L Reeve

Alex E Bailey

Steven N Stitzer

Tapan K Gupta

Ronnie L Starling

William B Yablon

Herbert Jefferson Henderson

John Chino

Andrea Curbean

Norman E Thurlow

Daniel Bobowicz

Jose Armando Coronado

Robert G Schmier

Timothy M Fertiq

Jeffrey J Dickstein

Lawrence J Hunter

Dennis A Grube

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.

Dual polarized electronically scanned antenna

Growing community of inventors

Annapolis, MD, United States of America

Terry L Reeve