Patents by Inventor Roger Frin

Roger Frin 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).

  • Plate antenna with double crossed polarizations
    Patent number: 4922263
    Abstract: The radiating portion of the antenna is formed from two similar radiating doublets (1,3; 2,4) which are located in a single plane and are orthogonal, with the slots between driven elements of the doublets crossing one another at the center (C) of the unit antenna.The two doublet modules (1,3; 2,4) are associated with the central conductors of three-plate lines which are orthogonal, with their extensions crossing one another beneath the center (C) of the antenna. Each three-plate line consists of the plates (1,3; 2,4) of a doublet, on the one hand, a reflector, on the other hand, and between the plates and the reflector, the central conductor. The reflector is common to the two doublets.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: May 1, 1990
    Assignee: L'Etat Francais, represente par le Ministre des PTT, Centre National d'Etudes des Telecommunications (CNET)
    Inventors: Gerard Dubost, Roger Frin