Patents by Inventor Weng Cho Chew

Weng Cho Chew 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 electronic reverberation chamber
    Patent number: 8693158
    Abstract: A method and apparatus provide an improved EM reverberation chamber which facilitates the dynamic three dimensional (3D) manipulation of EM field polarization within the chamber and produces a uniform field distribution inside the chamber. The chamber includes one or more walls with tunable lumped elements. A controller is provided to generate one or more control signals that are applied to the lumped elements and tunes their impedance in response to the one or more control signals. The result is to generate, within the chamber an electromagnetic field that appears to be random or pseudo-random in polarization, but which is sufficiently uniform in magnitude for EM testing.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: April 8, 2014
    Assignee: The University of Hong Kong
    Inventors: Weng Cho Chew, Bo Zhu, Lijun Jiang, Qi Dai
  • COMPACT ELECTRONIC REVERBERATION CHAMBER
    Publication number: 20120206849
    Abstract: A method and apparatus provide an improved EM reverberation chamber which facilitates the dynamic three dimensional (3D) manipulation of EM field polarization within the chamber and produces a uniform field distribution inside the chamber. The chamber includes one or more walls with tunable lumped elements. A controller is provided to generate one or more control signals that are applied to the lumped elements and tunes their impedance in response to the one or more control signals. The result is to generate, within the chamber an electromagnetic field that appears to be random or pseudo-random in polarization, but which is sufficiently uniform in magnitude for EM testing.
    Type: Application
    Filed: January 18, 2012
    Publication date: August 16, 2012
    Applicant: The University of Hong Kong
    Inventors: Weng Cho Chew, Bo Zhu, Lijun Jiang, Qi Dai