Patents by Inventor Valek Szwarc

Valek Szwarc 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).

  • Integrated standing-wave voltage controlled oscillator with dual-mode coplanar waveguide resonator
    Patent number: 8866558
    Abstract: A standing wave oscillator includes a cross-coupled differential transistor pair having a pair of input terminals and a pair of output terminals; and a resonant circuit coupled to the input terminals of the cross-coupled differential transistor pair. The resonant circuit includes: a capacitance between the input terminals of the cross-coupled differential transistor pair; and a differential dual-mode coplanar waveguide (CPW) having opposite differential ends thereof connected to respective input terminals of the cross-coupled differential transistor pair. CPW ground lines of the differential dual-mode coplanar waveguide each have a first end thereof connected to the first supply voltage and have a second end thereof floating or unterminated.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: October 21, 2014
    Assignee: Her Majesty the Queen in Right of Canada, as Represented by the Minister of Industry, Through the Communications Research Centre Canada
    Inventors: Ming Li, Khelifa Hettak, Rony E. Amaya, Adrian Momciu, Luc A. Desormeaux, Valek Szwarc
  • INTEGRATED STANDING-WAVE VOLTAGE CONTROLLED OSCILLATOR WITH DUAL-MODE COPLANAR WAVEGUIDE RESONATOR
    Publication number: 20130271230
    Abstract: A standing wave oscillator includes a cross-coupled differential transistor pair having a pair of input terminals and a pair of output terminals; and a resonant circuit coupled to the input terminals of the cross-coupled differential transistor pair. The resonant circuit includes: a capacitance between the input terminals of the cross-coupled differential transistor pair; and a differential dual-mode coplanar waveguide (CPW) having opposite differential ends thereof connected to respective input terminals of the cross-coupled differential transistor pair. CPW ground lines of the differential dual-mode coplanar waveguide each have a first end thereof connected to the first supply voltage and have a second end thereof floating or unterminated.
    Type: Application
    Filed: April 17, 2012
    Publication date: October 17, 2013
    Inventors: Ming LI, Khelifa Hettak, Rony E. Amaya, Adrian Momciu, Luc A. Desormeaux, Valek Szwarc