Patents by Inventor William S. Kopp

William S. Kopp 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).

  • Method and system for biasing power amplifiers with kink anomaly
    Patent number: 7095285
    Abstract: According to one embodiment of the present invention a method for biasing a power amplifier having at least one transistor exhibiting kink anomaly includes providing a bias circuit coupled to a gate of at least one transistor of the power amplifier. The method also includes providing, by the bias circuit, a bias voltage to the gate. The bias circuit has a load characteristic that intersects a current versus gate voltage curve for the gate at a frequency of operation of the power amplifier only once and that exhibits a low impedance at the intersection of the load characteristic with the current versus gate curve of the gate.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: August 22, 2006
    Assignee: Raytheon Company
    Inventors: David D. Heston, John G. Heston, Brian P. Helm, Gordon R. Scott, Scott Mitchel Heston, David R. Fletcher, William S. Kopp