Patents by Inventor Carl E. Kreitzer

Carl E. Kreitzer 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).

  • Circular waveguide amplitude commutator
    Patent number: 4929955
    Abstract: A circular waveguide section which is suitably excited with a TM.sub.01 and two spatially orthogonal TE.sub.11 modes to form a cosine-squared-on-a pedestal amplitude distribution at the outputs of the circular waveguide. The resulting cosine-squared-on-a-pedestal amplitude taper may be distributed to the elements of a circular phased array to form a low sidelobe antenna. Since the waveguide is a reciprocal element, it can be used in a receiver as well as a transmitter.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: May 29, 1990
    Assignee: E-Systems, Inc.
    Inventors: Thomas O. Miles, Carl E. Kreitzer