A fully integrated linear CMOS power amplifier with high output power and dynamic range for WiMAX application

A fully integrated 2.4 GHz power amplifier with high output power in a standard 0.18 μm CMOS process for WiMAX application is presented. For increasing linearity and efficiency, a parallel cascade class A&B power amplifier is used. A new interleaved PCT power combiner is proposed for increasing...

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Bibliographic Details
Main Authors: Belabad, A. R., Masoumi, N., Ashtiani, S. J., Sehatbakhsh, N.
Format: Conference Proceeding
Language:English
Subjects:
CMOS
CMOS integrated circuits
Decision support systems
Diffusion tensor imaging
Nanoscale devices
Parallel Class A&B PA
Power Amplifier (PA)
Power amplifiers
Solid state circuits
Transformer
WiMAX
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Description
Summary:A fully integrated 2.4 GHz power amplifier with high output power in a standard 0.18 μm CMOS process for WiMAX application is presented. For increasing linearity and efficiency, a parallel cascade class A&B power amplifier is used. A new interleaved PCT power combiner is proposed for increasing output power that combines output current of two similar power amplifiers. The proposed power amplifier with 3.3 V power supply provides maximum output power of 32.5 dBm and power added efficiency of 37.9% at 2.4 GHz operating frequency. The proposed power amplifier exhibits high output power of 32.2 dBm at 1dB compression point. The simulation results for proposed PA with modulated OFDM signal show that -31 dB error vector magnitude at the average power of 25 dBm can be achieved.
DOI:10.1109/DTIS.2013.6527773