Patents by Inventor David W. Strack

David W. Strack has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6979239
    Abstract: Slots or apertures are formed in the connector shroud of a T/R module in a plane perpendicular to the axis of the connector so as to allow plating solution to flow freely through the entire inner portion of the connector, particularly the rear portion, during fabrication of the T/R module. The slots are formed prior to the shroud being brazed on to the module substrate. By allowing plating solution to flow through the connector, the interior of the connector can be more thoroughly plated, thereby improving the yield of the assembly while reducing cost.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: December 27, 2005
    Assignee: Northrop Grumman Corporation
    Inventors: Patrick K. Richard, Edward L. Rich, III, Kevin L. Ebersole, Angela J. Martin, Tapan K. Gupta, David W. Strack, John S. Fisher, III
  • Patent number: 6278400
    Abstract: Two discrete transmit/receive (T/R) channels are implemented in a single common T/R module package having the capability of providing combined functions, control and power conditioning while utilizing a single multi-cavity, multi-layer substrate comprised of high or low temperature cofired ceramic layers. The ceramic layers have outer surfaces including respective metallization patterns of ground planes and stripline conductors as well as feedthroughs or vertical vias formed therein for providing three dimensional routing of both shielded RF and DC power and logic control signals so as to configure, among other things, a pair of RF manifold signal couplers which are embedded in the substrate and which transition to a multi-pin blind mate press-on RF connector assembly at the front end of the package.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: August 21, 2001
    Assignee: Northrop Grumman Corporation
    Inventors: John W. Cassen, Edward L. Rich, III, Gary N. Bonadies, John S. Fisher, John W. Gipprich, John D. Gornto, Daniel J. Heffernan, David A. Herlihy, Scott C. Tolle, Patrick K. Richard, David W. Strack, Scott K. Suko, Timothy L. Eder, Chad E. Wilson, Gary L. Ferrell, Stephanie A. Parks
  • Patent number: 6114986
    Abstract: Two discrete transmit/receive (T/R) channels are implemented in a single common T/R module package having the capability of providing combined functions, control and power conditioning while utilizing a single multi-cavity, multi-layer substrate comprised of high temperature cofired ceramic (HTCC) layers. The ceramic layers have outer surfaces including respective metallization patterns of ground planes and stripline conductors as well as feedthroughs or vertical vias formed therein for providing three dimensional routing of both shielded RF and DC power and logic control signals so as to configure, among other things, a pair of RF manifold signal couplers which are embedded in the substrate and which transition to a multi-pin blind mate press-on RF connector assembly at the front end of the package.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: September 5, 2000
    Assignee: Northrop Grumman Corporation
    Inventors: John W. Cassen, Stephanie A. Parks, Edward L. Rich, III, Gary N. Bonadies, Gary L. Ferrell, John S. Fisher, John W. Gipprich, John D. Gornto, Daniel J. Heffernan, David A. Herlihy, Andrew J. Piloto, Patrick K. Richard, David W. Strack, Scott K. Suko
  • Patent number: 6097335
    Abstract: A transmit/receive (T/R) module adapted for use in a radar system. The module has a unified structure including a layered substrate on and in which two T/R channel circuits are integrated. The channel circuits make use of power distribution, channel controller, and RF signal routing circuitry, partly on a channel shared basis. In the RF routing circuitry, respective coupler elements are employed to combine RF receive signals for output to an RF receive manifold and to split an RF transmit signal from a transmit manifold into separate RF transmit signals for input to the T/R channel circuits.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: August 1, 2000
    Assignee: Northrop Grumman Corporation
    Inventors: John W. Cassen, Stephanie A. Parks, Edward L. Rich, III, Gary N. Bonadies, Gary L. Ferrell, John S. Fisher, John W. Gipprich, John D. Gornto, Daniel J. Heffernan, David A. Herlihy, Patrick K. Richard, David W. Strack, Scott K. Suko
  • Patent number: 6094161
    Abstract: Two discrete transmit/receive (T/R) channels are implemented in a single common T/R module package having the capability of providing combined functions, control and power conditioning while utilizing a single multi-cavity, multi-layer substrate comprised of high temperature cofired ceramic (HTCC) layers. The ceramic layers have outer surfaces including respective metallization patterns of ground planes and stripline conductors as well as feedthroughs or vertical vias formed therein for providing three dimensional routing of both shielded RF and DC power and logic control signals so as to configure, among other things, a pair of RF manifold signal couplers which are embedded in the substrate and which transition to a multi-pin blind mate press-on RF connector assembly at the front end of the package.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: July 25, 2000
    Assignee: Northrop Grumman Corporation
    Inventors: John W. Cassen, Stephanie A. Parks, Edward L. Rich, III, Gary N. Bonadies, Gary L. Ferrell, John S. Fisher, John W. Gipprich, John D. Gornto, Daniel J. Heffernan, David A. Herlihy, Andrew J. Piloto, Patrick K. Richard, David W. Strack, Scott K. Suko
  • Patent number: 6034633
    Abstract: A transmit/receive (T/R) module adapted for use in a radar system. The module has a unified structure including a layered substrate on and in which two T/R channel circuits are integrated. The channel circuits make use of power distribution, channel controller, and RF signal routing circuitry, partly on a channel shared basis. In the RF routing circuitry, respective coupler elements are employed to combine RF receive signals for output to an RF receive manifold and to split an RF transmit signal from a transmit manifold into separate RF transmit signals for input to the T/R channel circuits.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: March 7, 2000
    Assignee: Northrop Grumman Corporation
    Inventors: John W. Cassen, Stephanie A. Parks, Edward L. Rich, III, Gary N. Bonadies, Gary L. Ferrell, John S. Fisher, John W. Gipprich, John D. Gornto, Daniel J. Heffernan, David A. Herlihy, Patrick K. Richard, David W. Strack, Scott K. Suko