A Polynomial-Predistortion Transmitter for WCDMA

A Polynomial-Predistortion Transmitter for WCDMA

A 0.18mum SiGe BiCMOS WCDMA handset transmitter IC implements a 5 th -order analog baseband complex-polynomial predistorter. The IC reduces the power consumption of the GaAs HBT PA for the 1.9GHz WCDMA handset by 18% and raises the maximum output power by 1.5dB. At 0dBm output power, the IC consumes...

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Bibliographische Detailangaben
Hauptverfasser: Mizusawa, Nishiki, Tsuda, Shinichiro, Itagaki, Tomoari, Takagi, Kotaro
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Analog integrated circuits
Baseband
BiCMOS integrated circuits
Germanium silicon alloys
Multiaccess communication
Polynomials
Power generation
Silicon germanium
Telephone sets
Transmitters
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Zusammenfassung:A 0.18mum SiGe BiCMOS WCDMA handset transmitter IC implements a 5 th -order analog baseband complex-polynomial predistorter. The IC reduces the power consumption of the GaAs HBT PA for the 1.9GHz WCDMA handset by 18% and raises the maximum output power by 1.5dB. At 0dBm output power, the IC consumes 64mA and 57mA from a 2.4V supply with and without predistortion, respectively.
ISSN:0193-6530
2376-8606
DOI:10.1109/ISSCC.2007.373438