Brian D Ball

US Patent:

7327313, Feb 5, 2008

Filed:

Nov 19, 2004

Appl. No.:

10/993830

Inventors:

Christian O. Hemmi - Plano TX, US
Marc H. Mccullough - Plano TX, US
Brian L. Ball - Trenton TX, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

H01Q 3/00

US Classification:

342368

Abstract:

According to one embodiment of the invention, a method of increasing a phase resolution of an array antenna, comprises providing an array antenna having a plurality of rows of antenna elements, each antenna element having a first phase resolution; for at least one row of the array antenna, positioning each of the antenna elements to one of first and second phases, the first and second phases separated by at least the first phase resolution; for the at least one row of the array antenna, a number of antenna elements positioned to the first phase is the product of a number of antenna elements in the at least one row of the array antenna and a desired row phase angle divided by the first phase resolution; and for the at least one row of the array antenna, a number of antenna elements positioned to the second phase is the number of elements in the at least one row of the array antenna minus the number of antenna elements in the at least one row positioned to the first phase.

US Patent:

20120319901, Dec 20, 2012

Filed:

Jun 15, 2011

Appl. No.:

13/161223

Inventors:

James A. Pruett - Allen TX, US
James R. Toplicar - Plano TX, US
Paul R. Emery - Plano TX, US
Brian L. Ball - Trenton TX, US
John D. Carpenter - Plano TX, US

Assignee:

RAYTHEON COMPANY - Waltham MA

International Classification:

H01Q 3/00

US Classification:

342372, 342371, 342374

Abstract:

An electronically scanned array (ESA) system comprises a first ESA assembly including a first antenna system coupled to a first plurality of transmit/receive modules and a second ESA assembly including a second antenna system coupled to a second plurality of transmit/receive modules. The ESA system also includes a manifold system coupled to the first and second ESA assemblies. The manifold system including an RF signal processing system for processing signals received from the first and second ESA assemblies.