Patents by Inventor Thomas E. Charlton

Thomas E. Charlton 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).

  • Patent number: 7403171
    Abstract: A radio frequency antenna structure includes a base station antenna and an auxiliary antenna mounted within a common antenna assembly. The base station antenna is configured to transmit or receive signals in a first frequency range and to develop a main beam that is substantially wider in azimuth than in elevation, and the auxiliary antenna is configured to transmit or receive signals in a second frequency range at least partially overlapping the first frequency range and to develop an auxiliary beam at least partially overlapping the main beam. Means are included for decoupling the base station and auxiliary antennas to thereby suppress interference between the main and auxiliary beams, and for suppressing interference between the auxiliary antenna and any co-located antennas.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: July 22, 2008
    Assignee: Andrew Corporation
    Inventors: Martin L. Zimmerman, Kevin E. Linehan, Thomas E. Charlton
  • Patent number: 7061445
    Abstract: An antenna system comprising a support structure and a multiband/multichannel wireless feeder configured for coupling antennas located proximate the top of a support structure with electronics located proximate the base of the support structure to overcome losses typically associated with coaxial cables. Such a multiband/multichannel wireless feeder includes a waveguide having a coupling at each end and a multiplexing waveguide network coupled at each end of the waveguide and configured to combine frequencies and applications.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: June 13, 2006
    Assignee: Andrew Corporation
    Inventor: Thomas E. Charlton
  • Patent number: 6917344
    Abstract: A radio frequency antenna structure includes a base station antenna and an auxiliary antenna mounted within a common antenna assembly. The base station antenna is configured to transmit or receive signals in a first frequency range and to develop a main beam that is substantially wider in azimuth than in elevation, and the auxiliary antenna is configured to transmit or receive signals in a second frequency range at least partially overlapping the first frequency range and to develop an auxiliary beam at least partially overlapping the main beam. Means are included for decoupling the base station and auxiliary antennas to thereby suppress interference between the main and auxiliary beams, and for suppressing interference between the auxiliary antenna and any co-located antennas.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: July 12, 2005
    Assignee: Andrew Corporation
    Inventors: Martin L. Zimmerman, Kevin E. Linehan, Thomas E. Charlton
  • Publication number: 20030193441
    Abstract: A radio frequency antenna structure includes a base station antenna and an auxiliary antenna mounted within a common antenna assembly. The base station antenna is configured to transmit or receive signals in a first frequency range and to develop a main beam that is substantially wider in azimuth than in elevation, and the auxiliary antenna is configured to transmit or receive signals in a second frequency range at least partially overlapping the first frequency range and to develop an auxiliary beam at least partially overlapping the main beam. Means are included for decoupling the base station and auxiliary antennas to thereby suppress interference between the main and auxiliary beams, and for suppressing interference between the auxiliary antenna and any co-located antennas.
    Type: Application
    Filed: October 1, 2002
    Publication date: October 16, 2003
    Inventors: Martin L. Zimmerman, Kevin E. Linehan, Thomas E. Charlton