Other

Northrop Grumman Systems Corporation

Daniel Bobowicz

William B Yablon

Alex E Bailey

Steven N Stitzer

Tapan K Gupta

Ronnie L Starling

Herbert Jefferson Henderson

John Chino

Andrea Curbean

Norman E Thurlow

Jose Armando Coronado

Dennis A Grube

Robert G Schmier

Terry L Reeve

Timothy M Fertiq

Jeffrey J Dickstein

Lawrence J Hunter

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

A phased antenna array includes conductive stubs integrated with at least one of the radiators of the array. The conductive stubs form a ground plane for the array. Preferably, each horizontally polarized radiator of the array has a plurality of conductive stubs integrated therewith. Voids between adjacent radiators and conductive ground stubs may be filled with a conductive material to provide electrical contact therebetween. Conductive stubs on opposing faces of adjacent radiators are preferably interlocking. Advantageously, the conductive stubs are triangular.

Phased array antenna having an integrated ground plane and method for

Growing community of inventors

Elkridge, MD, United States of America

Daniel Bobowicz