Patents Assigned to Dynalinear Technologies, Inc.
  • High linearity smart HBT power amplifiers for CDMA/WCDMA application
    Patent number: 7212072
    Abstract: A power amplifier includes larger size transistors to provide higher power gain at lower frequencies. Transistors of transistor unit cells include a horseshoe-shaped emitter and a strip-shaped base to increase gain. Transistors are combined at a first level to form transistor arrays, which are combined with bonding wires at a second level to an output micro strip transmission line. A Vbe referenced bias circuit may include a smart function to lower quiescent current.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: May 1, 2007
    Assignee: Dynalinear Technologies, Inc.
    Inventors: Reza Esfandiari, Nam-Min Cho, Alzon B. Canilao, Ron Green, Hyungmo Yoo
  • Heterostructure bipolar transistor power amplifier module with dynamic voltage supply for improved efficiency
    Patent number: 7057461
    Abstract: A power amplifier comprises first and second power transistor stages that receive first and second supply voltages, respectively. First and second bias circuits provide the biasing for the first and second power transistor stages, respectively, in response to a reference voltage and a bias voltage.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: June 6, 2006
    Assignee: Dynalinear Technologies, Inc.
    Inventors: Alzon B. Canilao, Ronald P. Green, Gi Young Lee
  • High linearity smart HBT power amplifiers for CDMA/WCDMA application
    Patent number: 7026876
    Abstract: A power amplifier includes larger size transistors to provide higher power gain at lower frequencies. Transistors of transistor unit cells include a horseshoe-shaped emitter and a strip-shaped base to increase gain. Transistors are combined at a first level to form transistor arrays, which are combined with bonding wires at a second level to an output micro strip transmission line. A Vbe referenced bias circuit may include a smart function to lower quiescent current.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: April 11, 2006
    Assignee: Dynalinear Technologies, Inc.
    Inventors: Reza Esfandiari, Nam-Min Cho, Alzon B. Canilao, Ron Green, Hyungmo Yoo
  • Dual (constant voltage/constant current) bias supply for linear power amplifiers
    Patent number: 6922107
    Abstract: An RF amplifier comprises a power amplifier and a dual bias circuit. A dual bias circuit comprises a constant current source and a constant voltage source for biasing the power amplifier. The power may include a heterojunction bipolar transistor (HBT) or a bipolar junction transistor (BJT).
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: July 26, 2005
    Assignee: Dynalinear Technologies, Inc.
    Inventor: Ron Green