Patents by Inventor Philip Joy

Philip Joy 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).

  • Low profile dual frequency dipole antenna structure
    Patent number: 6961028
    Abstract: An antenna includes a first dipole having first and second stripline radiating elements extending in opposite directions from a central feed point and along a generally rectangular outline of the antenna. The first dipole is operable to be resonant at a first frequency. The antenna also includes a second dipole having third and fourth stripline radiating elements extending in opposite directions from the central feed point and generally parallel to the first and second stripline radiating elements. The third and fourth stripline radiating elements generally follow and stay within the rectangular antenna outline. The second dipole is operable to be resonant at a second frequency. The antenna also includes a stripline balun electrically coupled to the central feed point and extending generally parallel with the first and second dipoles and along the rectangular antenna outline.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: November 1, 2005
    Assignee: Lockheed Martin Corporation
    Inventors: Philip Joy, Harold D. Reasoner
  • LOW PROFILE DUAL FREQUENCY DIPOLE ANTENNA STRUCTURE
    Publication number: 20040140941
    Abstract: An antenna includes a first dipole having first and second stripline radiating elements extending in opposite directions from a central feed point and along a generally rectangular outline of the antenna. The first dipole is operable to be resonant at a first frequency. The antenna also includes a second dipole having third and fourth stripline radiating elements extending in opposite directions from the central feed point and generally parallel to the first and second stripline radiating elements. The third and fourth stripline radiating elements generally follow and stay within the rectangular antenna outline. The second dipole is operable to be resonant at a second frequency. The antenna also includes a stripline balun electrically coupled to the central feed point and extending generally parallel with the first and second dipoles and along the rectangular antenna outline.
    Type: Application
    Filed: January 17, 2003
    Publication date: July 22, 2004
    Applicant: Lockheed Martin Corporation
    Inventors: Philip Joy, Harold D. Reasoner