Patents by Inventor William E. Heinz

William E. Heinz 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).

  • Panel antenna having groups of dipoles fed with insertable delay lines for electrical beam tilting and a mechanically tiltable ground plane
    Patent number: 5440318
    Abstract: A panel antenna suitable for use in cellular communication applications provided with means for mechanically and electrically adjusting the tilt of the antenna beam. Electrical down tilt being achieved by varying the length of a first feed line to a group of dipole pairs. Mechanical down tilting of the antenna beam being achieved by tilting the antenna ground plane and dipole driver assembly with respect to a housing.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: August 8, 1995
    Inventors: Roger J. Butland, William E. Heinz