Patents by Inventor Gilles Duret

Gilles Duret 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).

  • Crossed polarization same-zone two-frequency antenna for telecommunications satellites
    Patent number: 4757323
    Abstract: The antenna comprises a parabolic reflector (1) and a primary source (2). The reflector (1) comprises a first grating of conductor wires (7) and a second grating of conductor wires (8) which are orthogonal to the wires of the first grating, and with both gratings constituting elliptical reflective surfaces. The sizes of the major and minor axes of the ellipses are determined in such a manner that both operating frequencies of the antenna have identical coverge zones on the surface of the globe.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: July 12, 1988
    Assignee: Alcatel Thomson Espace
    Inventors: Gilles Duret, Daniel Renaud, Hubert Diez