Patents by Inventor Stephen M. Schiller

Stephen M. Schiller 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).

  • Power divider having unequal power division and antenna array feed network using such unequal power dividers
    Patent number: 7324060
    Abstract: An RF power divider circuit unequally divides an input signal into first and second signal components of unequal power. The circuit includes a single input port, first and second output ports, and a combination of a plurality of quarter wave transformers and a plurality of resistors coupled between the input port and the first and second output ports.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: January 29, 2008
    Assignee: Raytheon Company
    Inventors: Clifton Quan, Stephen M. Schiller, Yanmin Zhang
  • Attenuator circuit comprising a plurality of quarter wave transformers and lump element resistors
    Patent number: 7276989
    Abstract: A microwave attenuator circuit is disclosed, including a combination of a plurality of quarter wave transformers and a plurality of resistive elements.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: October 2, 2007
    Assignee: Raytheon Company
    Inventors: Clifton Quan, Stephen M. Schiller, Yanmin Zhang