Patents by Inventor Leonardus Petrus Ligthart

Leonardus Petrus Ligthart 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).

  • METHOD AND SYSTEM FOR TIME DOMAIN ANTENNA HOLOGRAPHY
    Publication number: 20020158804
    Abstract: A fast, novel method is disclosed which permits to determine the electrical features of an antenna. The antenna is excited with an ultra-short voltage pulse and the far field radiation pattern of the antenna is measured. The resulting time-varying field distribution across the antenna aperture is then reconstructed using time domain holography. A direct analysis of the holographic plot permits the determination a wide range of electrical properties of the antenna.
    Type: Application
    Filed: March 15, 2001
    Publication date: October 31, 2002
    Applicant: Agence Spatiale Europeenne (an Inter-governmental organization)
    Inventors: Javier Marti-Canales, Leonardus Petrus Ligthart
  • Method and system for time domain antenna holography
    Patent number: 6469672
    Abstract: A fast, novel method is disclosed which permits to determine the electrical features of an antenna. The antenna is excited with an ultra-short voltage pulse and the far field radiation pattern of the antenna is measured. The resulting time-varying field distribution across the antenna aperture is then reconstructed using time domain holography. A direct analysis of the holographic plot permits the determination a wide range of electrical properties of the antenna.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: October 22, 2002
    Assignee: Agence Spatiale Europeenne (an inter-governmental organization)
    Inventors: Javier Marti-Canales, Leonardus Petrus Ligthart