Patents by Inventor Gerald A. E. Crone

Gerald A. E. Crone 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).

  • Double grid reflector antenna
    Patent number: 4647938
    Abstract: A double grid reflector antenna for radiating different signals having pure linear orthogonal polarization comprises a couple of identical and superposed reflecting grids. One of said grids has been rotated its boresight to disengage its focus from that of the other, and feeds are set in the focal plane of the respective grids. The front grid reflects indifferently either horizontal or vertical polarization, while transmitting the orthogonal polarization to be reflected by the rear grid.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: March 3, 1987
    Assignee: Agence Spatiale Europeenne
    Inventors: Antoine G. Roederer, Gerald A. E. Crone