Patents by Inventor Peter Wileman

Peter Wileman 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 manufacture including inductance increasing removal of conductive material
    Patent number: 7515115
    Abstract: In a method of producing a quadrifilar antenna for circularly polarised radiation at frequencies above 200 MHz, the antenna is tuned by coupling it to a test source, measuring the relative phases and amplitudes of currents at predetermined positions in the individual elements of the antenna by means of probes capacitively coupled to the elements, and laser etching apertures in the elements to increase their inductance, the sizes of the apertures being computed according to the deviation of the measured relative phases from predetermined values.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: April 7, 2009
    Assignee: Sarantel Limited
    Inventors: Oliver Paul Leisten, Peter Wileman
  • Antenna manufacture including inductance increasing removal of conductive material
    Publication number: 20050115056
    Abstract: In a method of producing a quadrifilar antenna for circularly polarised radiation at frequencies above 200 MHz, the antenna is tuned by coupling it to a test source, measuring the relative phases and amplitudes of currents at predetermined positions in the individual elements of the antenna by means of probes capacitively coupled to the elements, and laser etching apertures in the elements to increase their inductance, the sizes of the apertures being computed according to the deviation of the measured relative phases from predetermined values.
    Type: Application
    Filed: December 7, 2004
    Publication date: June 2, 2005
    Inventors: Oliver Leisten, Peter Wileman
  • Method of producing an antenna
    Patent number: 6886237
    Abstract: In a method of producing a quadrifilar antenna for circularly polarised radiation at frequencies above 200 MHz, the antenna is tuned by coupling it to a test source, measuring the relative phases and amplitudes of currents at predetermined positions in the individual elements of the antenna by means of probes capacitively coupled to the elements, and laser etching apertures in the elements to increase their inductance, the sizes of the apertures being computed according to the deviation of the measured relative phases from predetermined values.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: May 3, 2005
    Assignee: Sarantel Limited
    Inventors: Oliver Paul Leisten, Peter Wileman
  • A METHOD OF PRODUCING AN ANTENNA
    Publication number: 20030140480
    Abstract: In a method of producing a quadrifilar antenna for circularly polarised radiation at frequencies above 200 MHz, the antenna is tuned by coupling it to a test source, measuring the relative phases and amplitudes of currents at predetermined positions in the individual elements of the antenna by means of probes capacitively coupled to the elements, and laser etching apertures in the elements to increase their inductance, the sizes of the apertures being computed according to the deviation of the measured relative phases from predetermined values.
    Type: Application
    Filed: March 2, 2000
    Publication date: July 31, 2003
    Inventors: Oliver Paul Leisten, Peter Wileman