Patents by Inventor Mohammad Ranjbarnikkhah

Mohammad Ranjbarnikkhah 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).

  • Optical inspection of the varactor diodes in varactor metasurface antenna
    Patent number: 11978958
    Abstract: Methods and apparatuses for performing optical inspection of varactor diodes in an antenna are disclosed. In some embodiments, the method of testing an antenna having varactor diodes comprises: selecting a plurality of varactor diodes to be placed in a light emitting state; forward biasing the selected varactor diodes to a magnitude at which the selected varactor diodes are to emit light; and detecting one or more faulty varactor diodes of the selected varactor diodes based on their emitted light intensity.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: May 7, 2024
    Assignee: KYMETA CORPORATION
    Inventors: Hussein Esfahlani, Cagdas Varel, Mohsen Sazegar, Steven Howard Linn, Ryan Stevenson, Mohammad Ranjbarnikkhah, Seyed Mohamad Amin Momeni Hasan Abadi
  • OPTICAL INSPECTION OF THE VARACTOR DIODES IN VARACTOR METASURFACE ANTENNA
    Publication number: 20230058694
    Abstract: Methods and apparatuses for performing optical inspection of varactor diodes in an antenna are disclosed. In some embodiments, the method of testing an antenna having varactor diodes comprises: selecting a plurality of varactor diodes to be placed in a light emitting state; forward biasing the selected varactor diodes to a magnitude at which the selected varactor diodes are to emit light; and detecting one or more faulty varactor diodes of the selected varactor diodes based on their emitted light intensity.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 23, 2023
    Inventors: Hussein Esfahlani, Cagdas Varel, Mohsen Sazegar, Steven Howard Linn, Ryan Stevenson, Mohammad Ranjbarnikkhah, Seyed Mohamad Amin Momeni Hasan Abadi
  • METASURFACE ANTENNA WITH INTEGRATED VARACTOR CIRCUITS
    Publication number: 20220278449
    Abstract: Antennas with integrated varactor circuits are described. The antenna may comprise metasurface antennas. In some embodiments, an antenna comprises an array of antenna elements, wherein each antenna element comprises a iris and a varactor diode integrated on an integrated circuit (IC) chip coupled across a portion of the iris. The antenna can also comprise a plurality of transistors, each transistor coupled to a distinct one of the varactor diodes in the array of antenna elements to provide a tuning voltage to the one varactor diode.
    Type: Application
    Filed: February 25, 2022
    Publication date: September 1, 2022
    Inventors: Mohsen Sazegar, Hussein Esfahlani, Cagdas Varel, Seyed Mohamad Amin Momeni Hasan Abadi, Tung Pham, Ryan Stevenson, Witold Teller, Mohammad Ranjbarnikkhah, Paul Klassen