A 900MHz high efficiency and linearity adaptive CMOS power amplifier

A 900MHz high efficiency and linearity adaptive CMOS power amplifier

A high efficiency, linear, adaptive radio frequency (RF) power amplifier (PA) is presented. The working frequency is about 900MHz. The circuit employs a self-bias cascode for a higher performance and an adaptive bias to enhance linear and efficiency of the PA as well. This power amplifier is designe...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Jing Wang, Zhangfa Liu
Format: Tagungsbericht
Sprache:eng
Schlagworte:
adaptive bias
CMOS integrated circuits
high efficiency
linear
Linearity
MOSFET circuits
Power amplifiers
Radio frequency
Resistance
RF power amplifier
Simulation
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Beschreibung
Zusammenfassung:A high efficiency, linear, adaptive radio frequency (RF) power amplifier (PA) is presented. The working frequency is about 900MHz. The circuit employs a self-bias cascode for a higher performance and an adaptive bias to enhance linear and efficiency of the PA as well. This power amplifier is designed with the SMIC 0.18um CMOS RF process. The power supply is 1.8V. The simulation results show that the PA has a power gain of 30dB. In addition, the Power-Added Efficiency is over 33%.
DOI:10.1109/ICEICE.2011.5777187