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A 1-V CMOS power amplifier for Bluetooth applications

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2 Author(s)
Ka-Wai Ho ; Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., China ; H. C. Luong

A two-stage power amplifier operated at 2.4 GHz is designed and fabricated in a standard 0.35-μm CMOS technology. A common-gate class-E power amplifier is employed for low-supply voltage operation without degrading the power-added efficiency (PAE). A preamplifier with positive feedback configuration is used to drive the common-gate output stage. The amplifier delivers 18-dB output power with 33% PAE under a 1-V supply voltage.

Published in:

IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing  (Volume:50 ,  Issue: 8 )