A 30.8-dBm Wideband CMOS Power Amplifier With Minimized Supply Fluctuation

  title={A 30.8-dBm Wideband CMOS Power Amplifier With Minimized Supply Fluctuation},
  author={Boshi Jin and Junghwan Moon and Chenxi Zhao and Bumman Kim},
  journal={IEEE Transactions on Microwave Theory and Techniques},
A wideband design method for a twisted eight-shape transformer is introduced with the design guidelines. The supply modulation effect caused by the fluctuation of virtual ground is analyzed. To minimize the effect, the different matching capacitors are adopted at each port and an accurate virtual ground is positioned. For verification, a fully integrated linear CMOS power amplifier (PA) is implemented in a 0.18-μm standard 1P6M RF CMOS process for 2.3- and 2.6-GHz m-WiMAX (IEEE 802.16e standard… CONTINUE READING
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