Patents by Inventor Ronald M. Hirschfield

Ronald M. Hirschfield 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).

  • Space segment payload architecture for mobile satellite services (MSS) systems
    Patent number: 8354956
    Abstract: A antenna system for generating and distributing power among a plurality of non-focused beams is provided The system comprises a reflector having a focal plane and a non-parabolic curvature configured to form the defocused beams. The curvature is configured to create a symmetrical quadratic phase-front in an aperture plane of the reflector. The system further comprises a plurality of feed antennas disposed in the focal plane of the reflector and configured to illuminate the reflector. Each feed antenna is configured to contribute power toward each of the defocused beams. The system further comprises a plurality of fixed-amplitude amplifiers, at least one of which corresponds to each feed antenna.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: January 15, 2013
    Assignee: Lockheed Martin Corporation
    Inventors: Gerard J. Matyas, Sudhakar K. Rao, Alan L. Stern, Minh Tang, William J. Taft, Ronald M. Hirschfield
  • SPACE SEGMENT PAYLOAD ARCHITECTURE FOR MOBILE SATELLITE SERVICES (MSS) SYSTEMS
    Publication number: 20090262037
    Abstract: A antenna system for generating and distributing power among a plurality of non-focused beams is provided The system comprises a reflector having a focal plane and a non-parabolic curvature configured to form the defocused beams. The curvature is configured to create a symmetrical quadratic phase-front in an aperture plane of the reflector. The system further comprises a plurality of feed antennas disposed in the focal plane of the reflector and configured to illuminate the reflector. Each feed antenna is configured to contribute power toward each of the defocused beams. The system further comprises a plurality of fixed-amplitude amplifiers, at least one of which corresponds to each feed antenna.
    Type: Application
    Filed: June 25, 2009
    Publication date: October 22, 2009
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Gerard J. Matyas, Sudhakar K. Rao, Alan L. Stern, Minh Tang, William J. Taft, Ronald M. Hirschfield