Patents by Inventor Thomas Alan Clupper

Thomas Alan Clupper 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 and an antenna feed structure
    Patent number: 8212738
    Abstract: A dielectrically-loaded helical antenna has a cylindrical ceramic core bearing metallised helical antenna elements which are coupled to a coaxial feeder structure passing axially through the core. Secured to the end face of the core is an impedance matching section in the form of a laminate board. The matching section embodies a shunt capacitance and a series inductance.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: July 3, 2012
    Assignee: Sarantel Limited
    Inventors: Oliver Paul Leisten, Andrew Robert Christie, Thomas Alan Clupper, John J Squires
  • Antenna and an antenna feed structure
    Patent number: 8207905
    Abstract: A dielectrically-loaded helical antenna has a cylindrical ceramic core bearing metallised helical antenna elements which are coupled to a coaxial feeder structure passing axially through the core. Secured to the end face of the core is an impedance matching section in the form of a laminate board. The matching section embodies a shunt capacitance and a series inductance.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: June 26, 2012
    Assignee: Sarantel Limited
    Inventors: Oliver Paul Leisten, Andrew Robert Christie, Thomas Alan Clupper, John J Squires
  • Antenna and an antenna feed structure
    Publication number: 20120032871
    Abstract: A dielectrically-loaded helical antenna has a cylindrical ceramic core bearing metallised helical antenna elements which are coupled to a coaxial feeder structure passing axially through the core. Secured to the end face of the core is an impedance matching section in the form of a laminate board. The matching section embodies a shunt capacitance and a series inductance.
    Type: Application
    Filed: October 7, 2011
    Publication date: February 9, 2012
    Inventors: Oliver Paul Leisten, Andrew Robert Christie, Thomas Alan Clupper, John J. Squires
  • Antenna and an antenna feed structure
    Publication number: 20100177015
    Abstract: A dielectrically-loaded helical antenna has a cylindrical ceramic core bearing metallised helical antenna elements which are coupled to a coaxial feeder structure passing axially through the core. Secured to the end face of the core is an impedance matching section in the form of a laminate board. The matching section embodies a shunt capacitance and a series inductance.
    Type: Application
    Filed: March 15, 2010
    Publication date: July 15, 2010
    Inventors: Oliver Paul Leisten, Andrew Robert Christie, Thomas Alan Clupper, John J. Squires
  • Antenna and an antenna feed structure
    Patent number: 7439934
    Abstract: A dielectrically-loaded helical antenna has a cylindrical ceramic core bearing metallised helical antenna elements which are coupled to a coaxial feeder structure passing axially through the core. Secured to the end face of the core is an impedance matching section in the form of a laminate board. The matching section embodies a shunt capacitance and a series inductance.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: October 21, 2008
    Assignee: Sarantel Limited
    Inventors: Oliver Paul Leisten, Andrew Robert Christie, Thomas Alan Clupper, John J Squires