Patents by Inventor James P. Coughlin

James P. Coughlin 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).

  • Electric wave device and method for efficient excitation of a dielectric rod
    Patent number: 4845508
    Abstract: An electric wave operating device for efficiently coupling electromagnetic energy from a waveguide into a dielectric element or vice versa. A waveguide horn portion is chosen for radiating in the primary HE.sub.11 mode and designed to have a predetermined HE.sub.11 mode farfield radiation pattern. A dielectric member is securely disposed with one end in the plane of the aperture of the waveguide horn with the dielectric member having a predetermined HE.sub.11 mode farfield radiation pattern substantially equal to the farfield radiation pattern of the horn.
    Type: Grant
    Filed: May 1, 1986
    Date of Patent: July 4, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Albert D. Krall, James P. Coughlin