Patents by Inventor James K. Breakall

James K. Breakall 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).

  • Patent number: 6580398
    Abstract: The invention is a low profile antenna array, particularly beneficial for AM broadcasting stations, which dramatically reduces the height of the antenna. The antenna array is constructed of at least two conductors oriented horizontally or sloping slightly up and extending away from a center location where they have upright sections extending above the ground plane by as little as 0.01 wavelength. The individual conductors are each approximately one-quarter wavelength long. The multiple conductors of the antenna array are each fed by impedance matching sections to achieve high individual impedances, which, when connected in parallel can be made to match any desired impedance with dimensional changes.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: June 17, 2003
    Assignee: Star H Corporation
    Inventor: James K. Breakall
  • Publication number: 20030080910
    Abstract: The invention is a low profile antenna array, particularly beneficial for AM broadcasting stations, which dramatically reduces the height of the antenna. The antenna array is constructed of at least two conductors oriented horizontally or sloping slightly up and extending away from a center location where they have upright sections extending above the ground plane by as little as 0.01 wavelength. The individual conductors are each approximately one-quarter wavelength long. The multiple conductors of the antenna array are each fed by impedance matching sections to achieve high individual impedances, which, when connected in parallel can be made to match any desired impedance with dimensional changes.
    Type: Application
    Filed: October 25, 2001
    Publication date: May 1, 2003
    Applicant: Star-H Corporation
    Inventor: James K. Breakall
  • Patent number: 5274390
    Abstract: A phased antenna array is described that includes a conductive ground plane and a plurality of log-periodic antennas, each antenna having a plurality of radiating elements, each radiating element having a resonant frequency. Each log-periodic antenna extends from a common feed region at an acute angle with respect to the conductive ground plane, the angle assuring that all said radiating elements having a common resonant frequency exhibit an identical electrical distance from each other and from the ground plane.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: December 28, 1993
    Assignee: The Pennsylvania Research Corporation
    Inventor: James K. Breakall