Patents by Inventor Eugene Ngai

Eugene Ngai 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).

  • Feed spoiler for microwave antenna
    Patent number: 5905474
    Abstract: A microwave antenna feed spoiler for reducing side lobes of a microwave antenna with a feed support. The microwave antenna feed spoiler provides one or more segments of electrically conducting surface forming a roof which is coupled to and hides beneath it at least a portion up to the whole length of the feed support.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: May 18, 1999
    Assignee: Gabriel Electronics Incorporated
    Inventors: Eugene Ngai, Robert Whiting