Patents by Inventor Yin Jeh Ngui

Yin Jeh Ngui 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).

  • Device for measuring complex dielectric permittivity of a material-under-test, measuring device for multiple reflections of time-domain signals of a complex dielectric and measuring method thereof
    Patent number: 11815484
    Abstract: A device for measuring the complex dielectric permittivity of a material under test (MUT) includes an electromagnetic wave generating/receiving unit, a transmission line, a self-referencing waveguide section and a sensing waveguide section. The electromagnetic wave generating/receiving unit is configured to generate an electromagnetic wave signal. The transmission line has a first characteristic impedance and transmits the electromagnetic wave signal. The self-referencing waveguide section has a second characteristic impedance, and includes a front end and a back end, wherein a first reflection signal is sent from the front end. The sensing waveguide section is connected to the back end, and configured to cooperate with the back end to send out remaining subsequent reflection signals, wherein the electromagnetic wave generating/receiving unit receives the first reflection signal and the remaining subsequent reflection signals to measure the complex dielectric permittivity of the MUT.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: November 14, 2023
    Assignee: NATIONAL YANG MING CHIAO TUNG UNIVERSITY
    Inventors: Chih-Ping Lin, Yin Jeh Ngui
  • DEVICE FOR MEASURING COMPLEX DIELECTRIC PERMITTIVITY OF A MATERIAL-UNDER-TEST, MEASURING DEVICE FOR MULTIPLE REFLECTIONS OF TIME-DOMAIN SIGNALS OF A COMPLEX DIELECTRIC AND MEASURING METHOD THEREOF
    Publication number: 20230194455
    Abstract: A device for measuring the complex dielectric permittivity of a material under test (MUT) includes an electromagnetic wave generating/receiving unit, a transmission line, a self-referencing waveguide section and a sensing waveguide section. The electromagnetic wave generating/receiving unit is configured to generate an electromagnetic wave signal. The transmission line has a first characteristic impedance and transmits the electromagnetic wave signal. The self-referencing waveguide section has a second characteristic impedance, and includes a front end and a back end, wherein a first reflection signal is sent from the front end. The sensing waveguide section is connected to the back end, and configured to cooperate with the back end to send out remaining subsequent reflection signals, wherein the electromagnetic wave generating/receiving unit receives the first reflection signal and the remaining subsequent reflection signals to measure the complex dielectric permittivity of the MUT.
    Type: Application
    Filed: May 19, 2022
    Publication date: June 22, 2023
    Applicant: National YANG MING Chiao Tung University
    Inventors: Chih-Ping Lin, Yin Jeh Ngui