Patents by Inventor Thomas D. Kudrle

Thomas D. Kudrle 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).

  • Transmission line structures for use as phase shifters and switches
    Patent number: 6727778
    Abstract: Suspended single crystal silicon (SCS) beams coated with metal form transmission lines that are used in MEMs type microactuated phase shifters and switches. The characteristic impedance of any section of the transmission lines is a function of the beam spacing in that section. Microactuators, such as comb-drive actuators, are connected to the beams to vary this spacing in a controllable manner. A continuos phase shifter is formed that consists of two tunable capacitance sections connected by a matching section that reduces reflections and improves compliance of the beams to reduce the energy required to move the beams.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: April 27, 2004
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Thomas D. Kudrle, Hercules P. Neves, Damien C. Rodger, Noel C. MacDonald
  • Transmission line structures for use as phase shifters and switches
    Publication number: 20020101300
    Abstract: Suspended single crystal silicon (SCS) beams coated with metal form transmission lines that are used in MEMs type microactuated phase shifters and switches. The characteristic impedance of any section of the transmission lines is a function of the beam spacing in that section. Microactuators, such as comb-drive actuators, are connected to the beams to vary this spacing in a controllable manner. A continuos phase shifter is formed that consists of two tunable capacitance sections connected by a matching section that reduces reflections and improves compliance of the beams to reduce the energy required to move the beams.
    Type: Application
    Filed: June 6, 2001
    Publication date: August 1, 2002
    Inventors: Thomas D. Kudrle, Hercules P. Neves, Damien C. Rodger, Noel C. MacDonald