Patents by Inventor John F. Cushman

John F. Cushman 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).

  • Millimeter-wave signal transmission device
    Patent number: 6952143
    Abstract: A transition for transmitting a mm-wave signal from one plane to another, the transition comprising: (a) first and second transmission lines on parallel planes; (b) a third transmission line orthogonal to the first and second transmission lines, wherein either the first and second transmission lines are suitable for transmitting a TEM mode signal and the third transmission line is suitable for transmitting a waveguide mode signal, or the third transmission line is suitable for transmitting a TEM mode signal and the first and second transmission lines are suitable for transmitting a waveguide mode signal; and (c) first and second transducers, the first transducer coupled between the first and third transmission lines, the second transducer coupled between the second and third transmission lines, each of the transducers suitable for converting a TEM mode signal to a waveguide mode signal.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: October 4, 2005
    Assignee: M/A-com, Inc.
    Inventors: Noyan Kinayman, Allan S. Douglas, John F. Cushman