Patents by Inventor Robert B. Lombardi

Robert B. Lombardi 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).

  • Method and system for determining antenna characterization
    Patent number: 7667467
    Abstract: An antenna and its associated components are consolidated in a small measurement box, and multiple tests are competed simultaneously, with a single vector network analyzer. This can be done by treating the “Far Field” measurements (typically measured on antenna/RCS ranges) as another port of a larger passive network. After characterization of one ideal “gold” unit (or a sample set of “gold” units), the S-parameters of subsequent units are measured in the same passive test box environment. The results of these subsequent tests are compared to the results of the “gold unit's” test, and if they are repeated to within some tolerance, electrical similarity can be proven.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: February 23, 2010
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Mahmood F. Khosravi, Robert B. Lombardi, Donald B. Spencer, Leonard Ruvinsky, Michael C. Freeman
  • Method of designing a circulator
    Patent number: 6917250
    Abstract: A radio frequency (RF) circulator includes a low temperature co-fired ceramic (LTCC) substrate and a ferrite structure disposed in the LTCC substrate. The circulator also includes first, second and third transmission lines disposed in the LTCC substrate and coupled between the ferrite disk and first, second and third ports of the circulator. The ferrite structure embedded in the LTCC substrate is exposed to an appropriate direct current (DC) magnetic field, to provide the circulator as an integrated LTCC substrate circulator.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: July 12, 2005
    Assignee: Raytheon Company
    Inventors: Robert B. Lombardi, Joseph S. Pleva, Landon Rowland, Paul Setzco
  • Low temperature co-fired ceramic (LTCC) circulator
    Patent number: 6844789
    Abstract: A radio frequency (RF) circulator includes a low temperature co-fired ceramic (LTCC) substrate and a ferrite structure disposed in the LTCC substrate. The circulator also includes first, second and third transmission lines disposed in the LTCC substrate and coupled between the ferrite disk and first, second and third ports of the circulator. The ferrite structure embedded in the LTCC substrate is exposed to an appropriate direct current (DC) magnetic field, to provide the circulator as an integrated LTCC substrate circulator.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: January 18, 2005
    Assignee: Raytheon Company
    Inventors: Robert B. Lombardi, Joseph S. Pleva, Landon Rowland, Paul Setzco
  • Low temperature co-fired ceramic (LTCC) circulator
    Publication number: 20030090335
    Abstract: A radio frequency (RF) circulator includes a low temperature co-fired ceramic (LTCC) substrate and a ferrite structure disposed in the LTCC substrate. The circulator also includes first, second and third transmission lines disposed in the LTCC substrate and coupled between the ferrite disk and first, second and third ports of the circulator. The ferrite structure embedded in the LTCC substrate is exposed to an appropriate direct current (DC) magnetic field, to provide the circulator as an integrated LTCC substrate circulator.
    Type: Application
    Filed: September 4, 2002
    Publication date: May 15, 2003
    Inventors: Robert B. Lombardi, Joseph S. Pleva, Landon Rowland, Paul Setzco