Patents by Inventor Gilles Sillard

Gilles Sillard 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).

  • Pin diode switch mounted in a ridge waveguide
    Patent number: 4660008
    Abstract: A millimetric electromagnetic waves switch is constituted by a ridged waveguide associated to a PIN diode of which the layers P.sup.+ and N.sup.+ are very thin, of about 2 to 5 microns thickness. The width of the diode is inferior to that of the ridged part of the guide and its dimension according to the longitudinal axis of the guide is a multiple of the half-length of the guided wave.
    Type: Grant
    Filed: September 27, 1984
    Date of Patent: April 21, 1987
    Assignee: Thomson-CSF
    Inventors: Raymond Henry, Michel Heitzmann, Gilles Sillard
  • Passive electromagnetic wave duplexer for millimetric antenna
    Patent number: 4574288
    Abstract: A passive duplexer for electromagnetic waves operated within the millimetric wave range. The duplexer comprises a first horn associated with a radar transmitter and having a propagation axis (.DELTA..sub.1), a plane circular grid inclined at 45.degree. with respect to (.DELTA..sub.1), and a second horn associated with the radar receiver and having an axis (.DELTA..sub.2) at right angles to (.DELTA..sub.1). The grid is formed by a network of resonant slots equipped with at least one diode.
    Type: Grant
    Filed: August 26, 1982
    Date of Patent: March 4, 1986
    Assignee: Thomson CSF
    Inventors: Gilles Sillard, Michel Baril
  • Electromagnetic wave switch
    Patent number: 4507632
    Abstract: An electromagnetic wave switch is provided formed from a profiled wave-guide associated with a PIN diode, filling completely the profiled part of said guide, having a high breakdown voltage and a low thermal resistance.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: March 26, 1985
    Assignee: Thomson-CSF
    Inventors: Michel Baril, Gilles Sillard
  • Passive semiconductor power limiter formed on flat structure lines, and an ultra-high frequency circuit using such a limiter
    Patent number: 4361819
    Abstract: The passive limiter is formed by at least two parallel micro-strip lines, a slot line orthogonal to the two micro-strip lines and a pair of diodes having the same polarity and placed on each edge of the slot line facing one another, the assembly of these three lines and the diodes forming at least two micro-strip line-slot line transitions.
    Type: Grant
    Filed: August 7, 1980
    Date of Patent: November 30, 1982
    Assignee: Thomson-CSF
    Inventors: Gilles Sillard, Michel Baril
  • Passive electromagnetic wave limiter and duplexer formed by means of such a limiter
    Patent number: 4357583
    Abstract: A passive limiter formed as a wave-guide, in at least one cross-section of the guide, by means of one or more resonating windows in which is shunt-mounted at least head-to-tail one pair of diodes having the same polarity and being disposed in the same plane. One or more such limiters may be contemplated for forming duplexers.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: November 2, 1982
    Assignee: Thomson-CSF
    Inventors: Jacques Martel, Gilles Sillard