Patents by Inventor Sulinder S. Dhanjal

Sulinder S. Dhanjal 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 feed network to produce both linear and circular polarizations
    Patent number: 8525616
    Abstract: An antenna feed network includes a septum polarizer including a waveguide defining a cavity, wherein a septum is disposed in the cavity to divide the cavity to form a first port and as second port, a diplexer in signal communication with at least one of the first port and the second port of the septum polarizer to route a signal based upon a frequency, and a wave coupler/splitter in signal communication with the diplexer to send and receive signals therebetween, the wave coupler/splitter including a first signal path and a second signal path, wherein the wave coupler/splitter controls a phase shift of a signal transmitted through at least one of the first signal path and the second signal path.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: September 3, 2013
    Assignee: Lockheed Martin Corporation
    Inventors: Robert K. Shaw, Jonathan P. MacGahan, Sulinder S. Dhanjal, Erik Lier, Bernard F. Lindinger, James W. Matthews, Kanti N. Patel