Patents by Inventor Michael Leonard Purdy

Michael Leonard Purdy 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).

  • Antenna assembly
    Patent number: 5990835
    Abstract: The present invention relates to integral antenna assemblies and in particular relates to an integral antenna assembly for microcellular base stations and fixed wireless access base stations. In accordance with one aspect of the invention, there is provided an integral antenna comprising a radome, a layered antenna and a reflector back plane, wherein the layered antenna has an outer surface and a rear surface; wherein the radome is attached directly to an outer surface of the antenna; and wherein the back plane provides a reflective cavity and encloses the feed network for the antenna and is attached to the rear surface of the antenna.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: November 23, 1999
    Assignee: Northern Telecom Limited
    Inventors: Tilmann Kuntzsch, Stuart Dean, Michael Leonard Purdy