Patents by Inventor John T. Apotolos

John T. Apotolos 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).

  • Beamforming quad meanderline loaded antenna
    Patent number: 6690331
    Abstract: Meanderline loaded antennas having a wide bandwidth available for simultaneous or instantaneous use are disclosed. In one embodiment, the azimuthal angle of arrival associated with the antenna is provided by phase difference between signals at the RHCP and Vpol ports or by phase difference between signals at the LHCP and Vpol ports. In another embodiment, a quad meanderline loaded antenna is adapted to simultaneously provide four independent beams. Any beam direction can be synthesized by combining the independent beams.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: February 10, 2004
    Assignee: Bae Systems Information and Electronic Systems Integration INC
    Inventor: John T. Apotolos