Patents by Inventor Joseph F. Kershaw

Joseph F. Kershaw 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).

  • Monopole inductively loaded antenna tuning system
    Patent number: 5016022
    Abstract: A monopole inductively loaded antenna system is disclosed in which the antenna system is tuned to resonance and impedance matched without making changes to the loading inductance or other antenna elements. The monopole inductively loaded antenna is supported by a base insulator having an antenna side and ground plane side. A variable capacitor is positioned on the ground plane side of the base feed insulator for tuning the antenna system to resonance. One of a plurality of impedance matching transformers is selectively switched into the antenna system to match the antenna load to the transmitter.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: May 14, 1991
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Joseph F. Kershaw