Cynthia T Berry

US Patent:

7030719, Apr 18, 2006

Filed:

Jan 16, 2004

Appl. No.:

10/758095

Inventors:

Michael A. Hageman - Millersville MD, US
Cynthia W. Berry - Pasadena MD, US

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

H01P 1/20

US Classification:

333202, 333209

Abstract:

A method of tuning the frequency response of filters embedded in or formed on a ceramic substrate, such as but not limited to a low temperature co-fired ceramic substrate (LTCC), by re-firing a previously fired LTCC substrate to a temperature which is greater by a predetermined, relatively small, amount than that of the temperature produced during the original firing profile of the substrate so as to change the dielectric constant of the substrate, and thus cause a desired shift in the filter's frequency response.

US Patent:

7632451, Dec 15, 2009

Filed:

Oct 8, 2004

Appl. No.:

10/960108

Inventors:

Marissa A. O'Donnell - Columbia MD, US
Cynthia W. Berry - Pasadena MD, US
Rena Y. Jacobson - Ellicott City MD, US
Wayne A. Smythe - Pasadena MD, US
Glenn A. Cooke - Clarksville MD, US
Shane H. Dennison - Frederick MD, US
Robert H. Fisher - Westminster MD, US

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

C04B 33/34

US Classification:

264619, 101129

Abstract:

The print head and screen assembly of a Semi-Automatic Screen Printer is raised above its normal printing height and selective attachment of several different fixtures on the nest plate for holding the substrate in a desired position during a screen printing operation for printing gold on LTCC substrates.

US Patent:

7728771, Jun 1, 2010

Filed:

Jul 3, 2007

Appl. No.:

11/773105

Inventors:

Michael J. Lee - Ellicott City MD, US
Eric V. Miller - Phoenix MD, US
Joseph A. Faulkner - Ellicott City MD, US
Cynthia W. Berry - Pasadena MD, US
Gene A. Digennaro - Dundalk MD, US
Kerron R. Duncan - Randallstown MD, US
Ronald G. Freitag - Catonsville MD, US
Tapan K. Gupta - Ellicott City MD, US
Vincent G. Karasack - Ellicott City MD, US
Dave M. Krafcsik - Crownsville MD, US
Brian T. McMonagle - Ellicott City MD, US
Robert B. Middleton - Laurel MD, US
Benjamin R. Myers - Columbia MD, US
Mike L. Salib - Millersville MD, US
John P. Vitamvas - Columbia MD, US
Thomas M. Walsh - Bowie MD, US
Eric D. Zirofsky - Washington DC, US
John W. Gipprich - Millersville MD, US

Assignee:

Northrop Grumman Systems Corporation - Los Angeles CA

International Classification:

H01Q 3/36

US Classification:

342368

Abstract:

A multi-channel, dual-band, radio frequency (RF) transmit/receive (T/R) module, for an active electronically scanned array, is provided. The module includes a compact, RF manifold connector and at least four T/R channels. Each of the T/R channels includes a notch radiator, a diplexer coupled to the notch radiator, a power amplifier, including at least one dual-band gain stage, coupled to the notch radiator, a low noise amplifier, including at least one lower-band gain stage and at least one upper-band gain stage, coupled to the diplexer, and a T/R cell, including a phase shifter, a signal attenuator and at least one dual-band gain stage, coupled to the power amplifier, the low noise amplifier and the manifold connector.