Patents by Inventor Mark A. Hilbert

Mark A. Hilbert 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).

  • Quadrature hybrid low loss directional coupler
    Patent number: 6956449
    Abstract: A coupling device defined by an RF circuit board having a cavity formed therein and a plurality of conductive traces and a ground plane, a coupler board having opposites sides and conductive traces, and first and, second metal shields. When assembled, the coupler board is supported by the RF circuit board, and cavities are formed on opposite sides of the coupler board by the first and second metal shields.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: October 18, 2005
    Assignee: Andrew Corporation
    Inventors: Robert F. Snyder, Mark A. Hilbert
  • Quadrature hybrid low loss directional coupler
    Publication number: 20040145427
    Abstract: A coupling device defined by an RF circuit board having a cavity formed therein and a plurality of conductive traces and a ground plane, a coupler board having opposites sides and conductive traces, and first and, second metal shields. When assembled, the coupler board is supported by the RF circuit board, and cavities are formed on opposite sides of the coupler board by the first and second metal shields.
    Type: Application
    Filed: January 27, 2003
    Publication date: July 29, 2004
    Applicant: Andrew Corporation
    Inventors: Robert F. Snyder, Mark A. Hilbert