Patents by Inventor Jeffrey J. Hirasuna

Jeffrey J. Hirasuna 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).

  • Compact tracking coupler
    Patent number: 8665036
    Abstract: A compact tracking coupler includes a plurality of ridged waveguides arranged circumferentially around a circular waveguide wherein long sides of the ridged waveguides extend circumferentially and short sides of the ridged waveguides extend radially relative to the circular waveguide. The compact tracking coupler can be especially useful in a multi-band antenna feed.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 4, 2014
    Assignee: L-3 Communications
    Inventors: Richard G. Edwards, Rory K. Sorensen, Jeffrey J. Hirasuna