Patents by Inventor Donald Keilen

Donald Keilen 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).

  • Compact dual frequency antenna with multiple polarization
    Patent number: 6407710
    Abstract: An asymmetrical dipole antenna is disclosed consisting of a planar conductor, matching network, and resonator. The antenna is compact, may operate on one or more frequency bands, and is suitable for high volume production. The antenna exhibits simultaneous dual linear polarizations and a unidirectional pattern in at least one of its operating frequency ranges when configured for multiple-band operation. Applications for the antenna include wireless communication devices such as cellular telephones or data devices.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: June 18, 2002
    Assignee: Tyco Electronics Logistics AG
    Inventors: Donald Keilen, Patrick McKivergan, Matthew Commens, Robert Hill
  • Compact dual frequency antenna with multiple polarization
    Publication number: 20010033250
    Abstract: An asymmetrical dipole antenna is disclosed consisting of a planar conductor, matching network, and resonator. The antenna is compact, may operate on one or more frequency bands, and is suitable for high volume production. The antenna exhibits simultaneous dual linear polarizations and a unidirectional pattern in at least one of its operating frequency ranges when configured for multiple-band operation. Applications for the antenna include wireless communication devices such as cellular telephones or data devices.
    Type: Application
    Filed: April 16, 2001
    Publication date: October 25, 2001
    Inventors: Donald Keilen, Patrick McKivergan, Matthew Commens, Robert Hill