Robert J Howley

US Patent:

20080122683, May 29, 2008

Filed:

Jun 30, 2006

Appl. No.:

11/482239

Inventors:

Robert J. Howley - Melbourne FL, US
William C. Daffron - Cocoa FL, US
Scott J. Hemlinger - West Melbourne FL, US
Anthony J. Gianatasio - Indialantic FL, US

Assignee:

HARRIS CORPORATION - Melbourne FL

International Classification:

G01S 13/00

US Classification:

342149

Abstract:

System and method for finding a direction of two or more secondary RF sources arrayed about a position of a primary RF source (X). The system includes an antenna system () coupled to a monopulse tracking system () for determining a position of a primary RF source relative to a boresight axis () of the antenna system. The system includes a monopulse direction finding system () coupled to the antenna system responsive to RF signals from two or more secondary RF sources (Y, Y) having at least one of a different frequency and a different polarization as compared to the primary RF source.

US Patent:

20080094298, Apr 24, 2008

Filed:

Oct 23, 2006

Appl. No.:

11/551743

Inventors:

Jay Kralovec - Viera FL, US
Griffin Gothard - Satellite Beach FL, US
Robert Meehan - Melbourne FL, US
Robert Howley - Melbourne FL, US
Kurt Zimmerman - North Melbourne FL, US

Assignee:

HARRIS CORPORATION - Melbourne FL

International Classification:

H01Q 13/00

US Classification:

343781CA, 343781 P

Abstract:

A low-profile antenna system includes a main reflector () formed as a shaped main reflector surface that is approximately, but not precisely, parabolic. The main reflector () has a main reflector edge configuration () that is asymmetric. A feed system () for the main reflector includes a subreflector () formed as a shaped subreflector surface that is approximately, but not precisely, elliptical. The subreflector has a subreflector edge configuration () that is also asymmetric. An RF feed horn () associated with the feed system has an aperture profile which also has an asymmetric shape.