Patents by Inventor Shashi M. Sanzgiri

Shashi M. Sanzgiri 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).

  • Antenna system having active polarization correlation and associated method
    Patent number: 6703974
    Abstract: An antenna system and an associated method are provided that are capable of providing improved cross-polarization isolation, thereby negating the otherwise deleterious effects of cross-coupling between orthogonally polarized signals that occur within a dual orthogonally polarized antenna, such as a phased array antenna. Thus, the antenna system can more reliably transmit and/or receive dual orthogonally polarized signals over a wide range of elevation and azimuth scan angles.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: March 9, 2004
    Assignee: The Boeing Company
    Inventors: Geoffrey O. White, Shashi M. Sanzgiri
  • Antenna system having active polarization correction and associated method
    Publication number: 20030179137
    Abstract: An antenna system and an associated method are provided that are capable of providing improved cross-polarization isolation, thereby negating the otherwise deleterious effects of cross-coupling between orthogonally polarized signals that occur within a dual orthogonally polarized antenna, such as a phased array antenna. Thus, the antenna system can more reliably transmit and/or receive dual orthogonally polarized signals over a wide range of elevation and azimuth scan angles.
    Type: Application
    Filed: March 20, 2002
    Publication date: September 25, 2003
    Applicant: The Boeing Company
    Inventors: Geoffrey O. White, Shashi M. Sanzgiri
  • Dual polarized microstrip patch antenna array for PCS base stations
    Patent number: 5923296
    Abstract: A dual, preferably orthogonally polarized microstrip patch antenna which includes a layer of electrically insulating material in the form of a printed circuit board. First and second sets of electrically conductive patches, preferably of copper, are disposed on one surface of the electrically insulating material, the first set adapted for transmission and/or reception of electromagnetic radiations polarized in a first direction and the second set adapted for transmission and/or reception of electromagnetic radiations polarized in a second direction. Patches of the first set are interlaced with patches of the second set.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: July 13, 1999
    Assignee: Raytheon Company
    Inventors: Shashi M. Sanzgiri, Paul C. Gilliland, William P. Harokopus, John Svigelj