Patents by Inventor Gerald K. Wong

Gerald K. Wong 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).

  • High efficiency doherty amplifier with a segmented main amplifier
    Patent number: 7295065
    Abstract: A Doherty amplifier that includes a main amplifier device and an auxiliary amplifier device. The main amplifier device includes a plurality of independently controllable amplifier segments. The system further includes a coupler for coupling an input signal to each of the main amplifier device and the auxiliary amplifier device. The system further includes an impedance inverter for power combining an output signal of the main amplifier device with an output signal of the auxiliary amplifier device.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: November 13, 2007
    Assignee: Beecem Communications Inc.
    Inventors: Tushar Ramanlal Shah, Gerald K. Wong, Korhan Titizer
  • Doherty power amplifier with phase compensation
    Patent number: 7295074
    Abstract: A Doherty power amplifier is provided that includes a main amplifier device and an auxiliary amplifier device. The Doherty power amplifier further includes a phase compensation network. The phase compensation network is configured to maintain a substantially constant phase of one of an output signal from the main amplifier device or an output signal from the auxiliary amplifier device across a range of input powers. The Doherty power amplifier further includes an impedance inverter for power combining an output signal of the main amplifier device with an output signal of the auxiliary amplifier device.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: November 13, 2007
    Assignee: Beceem Communications Inc.
    Inventors: Gerald K. Wong, Tushar Ramanlal Shah, Korhan Titizer