Fully Integrated CMOS Power Amplifier Design Using the Distributed Active-Transformer Architecture

  title={Fully Integrated CMOS Power Amplifier Design Using the Distributed Active-Transformer Architecture},
  author={Ichiro Aoki and Scott Kee and David B. Rutledge and Ali Hajimiri},
A novel on-chip impedance matching and powercombining method, the distributed active transformer is presented. It combines several low-voltage push–pull amplifiers efficiently with their outputs in series to produce a larger output power while maintaining a 50match. It also uses virtual ac grounds and magnetic couplings extensively to eliminate the need for any offchip component, such as tuned bonding wires or external inductors. Furthermore, it desensitizes the operation of the amplifier to… CONTINUE READING
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