Patents by Inventor Francois Herrbach

Francois Herrbach 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).

  • Termination device for an ultra-high frequency transmission line with a minimum standing wave ratio
    Patent number: 4413241
    Abstract: A termination device for a transmission line in which it is desired to reduce to a minimum the standing wave ratio resulting from the reflection of microwaves on a resistive load positioned at the end of the line. For this purpose and more particularly for a microstrip line comprising a conductor deposited on a dielectric substrate, whose lower face is metallized (earth plane), the conductor is extended by a trapezoidal resistive film, whose narrow end is connected to a metal coating connected to earth. Moreover, in order to compensate for the inductance of the load, two capacitors formed by metal deposits deposited on the substrate are connected to the resistive film.
    Type: Grant
    Filed: July 8, 1981
    Date of Patent: November 1, 1983
    Assignee: Thomson-CSF
    Inventors: Sylviane Bitoune, Pierre Dufond, Francois Herrbach, Maurice Lecreff