Patents by Inventor Lowell N. Shestag

Lowell N. Shestag 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).

  • Apparatus to maintain arbitrary polarization stabilization of an antenna
    Patent number: 4827269
    Abstract: An apparatus for maintaining an arbitrary orientation of the polarization of an antenna, such as an airborne microwave antenna, by using antenna pointing information and platform (aircraft) attitude information to position the input/feed signal.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: May 2, 1989
    Assignee: Unisys Corporation
    Inventors: Lowell N. Shestag, John W. Zscheile, Jr., Alan E. Lundquist, Glen S. Kirkpatrick
  • Antenna stabilization and enhancement by rotation of antenna feed
    Patent number: 4786912
    Abstract: An antenna system wherein the feed assembly is rotated to provide spatial polarization stabilization with respect to vehicle movement so that orthogonal polarizations can be used simultaneously.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: November 22, 1988
    Assignee: Unisys Corporation
    Inventors: Ralph A. Brown, Lowell N. Shestag