Patents by Inventor Carl B. Wischhusen

Carl B. Wischhusen 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).

  • Broadband circular phased array antenna
    Patent number: 4973971
    Abstract: An apparatus and method for generating a directional beam for radiating or receiving electromagnetic signals having a constant beamwidth over a predetermined frequency range has been described incorporating a circular array antenna, a Butler matrix, a plurality of phase shifters, a plurality of transmission line lengths, and a power divider. The invention overcomes the problem of constant beamwidth over a predetermined frequency range such as one and one half octaves.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: November 27, 1990
    Assignee: Allied-Signal Inc.
    Inventors: Allen I. Sinsky, Joseph H. Acoraci, Carl B. Wischhusen