Patents by Inventor Andrew Barrington Clayton

Andrew Barrington Clayton 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).

  • Antenna arrangement
    Patent number: 6002370
    Abstract: A radio frequency antenna arrangement for selective operation at orthogonal polarizations of electromagnetic radiation. The antenna arrangement comprises at least one radiating element, such as one or more antenna patches, each having a vertical polarization feed point and a horizontal polarization feed point. The arrangement also includes a vertical feeder circuit for coupling a radio frequency modulated electromagnetic signal to the vertical polarization feed point of the or each radiating element, a horizontal feeder circuit for coupling a radio frequency modulated electromagnetic signal to the horizontal polarization feed point of the or each radiating element and a terminating resistive load. A switch mechanism is provided for selectively coupling the electromagnetic signal to one of the horizontal feeder circuit or the vertical feeder circuit and for selectively coupling the load to the other of the horizontal feeder circuit or the vertical feeder circuit.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: December 14, 1999
    Assignee: Northern Telecom Limited
    Inventors: John Peter Bruce Mckinnon, Andrew Barrington Clayton, John Eric Barrett