Patents by Inventor Shoeb SHAIKH

Shoeb SHAIKH 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).

  • Multi-standard transmitter architecture with digital upconvert stage and gallium nitride (GAN) amplifier circuit
    Patent number: 10455529
    Abstract: A multi-standard transmitter architecture with digitally upconverted intermediate frequency (IF) outphased signals is disclosed. The transmitter architecture includes a Gallium Nitride (GaN) power amplifier (PA) circuit having a Current Mode Class-D (CMCD) configuration. The GaN PA circuit includes a lower switching device electrically coupled to an input to receive an input RF signal and an upper switching device to switchably electrically couple the first switching device to a power supply to drive an antenna circuit based on the input RF signal. Thus, a reconfigurable transmitter architecture is disclosed that utilizes a high-speed Gallium Nitride (GaN) driver to achieve a peak drain efficiency of at least 85% while delivering output power of 10 W at 1 GHz frequency, for example.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: October 22, 2019
    Assignee: Khalifa University of Science and Technology
    Inventors: Mihai Sanduleanu, Shoeb Shaikh
  • MULTI-STANDARD TRANSMITTER ARCHITECTURE WITH DIGITAL UPCONVERT STAGE AND GALLIUM NITRIDE (GAN) AMPLIFIER CIRCUIT
    Publication number: 20180332545
    Abstract: A multi-standard transmitter architecture with digitally upconverted intermediate frequency (IF) outphased signals is disclosed. The transmitter architecture includes a Gallium Nitride (GaN) power amplifier (PA) circuit having a Current Mode Class-D (CMCD) configuration. The GaN PA circuit includes a lower switching device electrically coupled to an input to receive an input RF signal and an upper switching device to switchably electrically couple the first switching device to a power supply to drive an antenna circuit based on the input RF signal. Thus, a reconfigurable transmitter architecture is disclosed that utilizes a high-speed Gallium Nitride (GaN) driver to achieve a peak drain efficiency of at least 85% while delivering output power of 10 W at 1 GHz frequency, for example.
    Type: Application
    Filed: May 9, 2018
    Publication date: November 15, 2018
    Inventors: Mihai SANDULEANU, Shoeb SHAIKH