Patents by Inventor John Langfield

John Langfield 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).

  • Conformal wide band surface wave radiating element
    Patent number: 9373895
    Abstract: Conformal antennas and methods for radiating radio frequency energy using conformal antennas are provided. In particular, one or more tapered feeds can be provided as part of or interconnected to a conductive top plate. The one or more tapered feeds have a depth that decreases from a feed point to a tip. The tip of the one or more tapered feeds is adjacent a cavity formed over a lens region. An aperture over the lens region can be covered or filled by an impedance surface. This impedance surface may comprise a frequency selective surface. Alternatively, a frequency selective surface can be provided over the lens region of an antenna incorporating one or more stripline feeds.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: June 21, 2016
    Assignee: BALL AEROSPACE & TECHNOLOGIES CORP.
    Inventors: John Langfield, John T. Mehr, Daniel J. Carlson
  • Conformal wide band surface wave radiating element
    Patent number: 8736502
    Abstract: Conformal antennas and methods for radiating radio frequency energy using conformal antennas are provided. In particular, one or more tapered feeds can be provided as part of or interconnected to a conductive top plate. The one or more tapered feeds have a depth that decreases from a feed point to a tip. The tip of the one or more tapered feeds is adjacent a cavity formed over a lens region. An aperture over the lens region can be covered or filled by an impedance surface. This impedance surface may comprise a frequency selective surface. Alternatively, a frequency selective surface can be provided over the lens region of an antenna incorporating one or more stripline feeds.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: May 27, 2014
    Assignee: Ball Aerospace & Technologies Corp.
    Inventors: John Langfield, John T. Mehr, Daniel J. Carlson