Patents by Inventor Mark E. Kusbel

Mark E. Kusbel 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).

  • ISOLATING SIGNAL DIVIDER/COMBINER AND METHOD OF COMBINING SIGNALS OF FIRST AND SECOND FREQUENCIES
    Publication number: 20030030508
    Abstract: A signal divider/combiner (11) and method combines first and second frequency signals received by microstrip patch antennas (58, 48). A first transmission line stub (28) blocks the second frequency signals on the first signal receiving path, and a second transmission line stub (20) blocks the first frequency signals on the second signal receiving path providing increased signal levels at a receiver input (10). In one embodiment, the transmission line stubs are open-circuit stubs and are positioned a quarter-wavelength from a combining junction (12) formed from stripline transmission lines (14, 32, 50). The transmission line stubs (28, 20) also reduce radiation of the first frequency signal by the second antenna as well as radiation of the second frequency signal by the first antenna. In one embodiment, the first and second frequency signals are the L1 and L2 signals provided by the Global Positioning System.
    Type: Application
    Filed: August 13, 2001
    Publication date: February 13, 2003
    Inventors: Chad M. Wangsvick, Gary M. Salvail, Mark E. Kusbel
  • Isolating signal divider/combiner and method of combining signals of first and second frequencies
    Patent number: 6515557
    Abstract: A signal divider/combiner (11) and method combines first and second frequency signals received by microstrip patch antennas (58, 48). A first transmission line stub (28) blocks the second frequency signals on the first signal receiving path, and a second transmission line stub (20) blocks the first frequency signals on the second signal receiving path providing increased signal levels at a receiver input (10). In one embodiment, the transmission line stubs are open-circuit stubs and are positioned a quarter-wavelength from a combining junction (12) formed from stripline transmission lines (14, 32, 50). The transmission line stubs (28, 20) also reduce radiation of the first frequency signal by the second antenna as well as radiation of the second frequency signal by the first antenna. In one embodiment, the first and second frequency signals are the L1 and L2 signals provided by the Global Positioning System.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: February 4, 2003
    Assignee: Raytheon Company
    Inventors: Chad M. Wangsvick, Gary M. Salvail, Mark E. Kusbel