Patents Assigned to Beecem Communications Inc.
  • 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