Patents by Inventor Thomas H. B. Cranor

Thomas H. B. Cranor 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).

  • Microstrip patch antenna with omni-directional radiation pattern
    Patent number: 4922259
    Abstract: A microstrap patch antenna with a substantially omni-directional radiation pattern includes an upper hemisphere microstrip patch radiator working against a ground plane and a lower hemisphere microstrip patch radiator working against a ground plane, the ground planes being oriented in close proximity and spaced apart from each other. One of the radiators is excited in left hand circular polarization and the other in right hand circular polarization such that their fields add constructively across their ground planes to achieve an omni-directional radiation pattern.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: May 1, 1990
    Assignee: McDonnell Douglas Corporation
    Inventors: Edward A. Hall, Thomas H. B. Cranor, Gilbert J. Schmitt