Automatic phase alignment for a fully integrated CMOS Cartesian feedback power amplifier system

A phase alignment system is used in an IC that fully integrates a 14.2dBm PA, Cartesian feedback, and phase-alignment circuitry. The alignment system consumes 8.5mW from a 2.5V supply, uses a 2GHz carrier, and rejects phase disturbances over a 180/spl deg/ range. The IC was fabricated in a 0.25/spl...

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Bibliographic Details
Main Authors: Dawson, J.L., Lee, T.H.
Format: Conference Proceeding
Language:English
Subjects:
Baseband
Clocks
Demodulation
Feedback
Frequency
Local oscillators
Nonlinear dynamical systems
Phase modulation
Power amplifiers
Prototypes
Online Access:Request full text
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Description
Summary:A phase alignment system is used in an IC that fully integrates a 14.2dBm PA, Cartesian feedback, and phase-alignment circuitry. The alignment system consumes 8.5mW from a 2.5V supply, uses a 2GHz carrier, and rejects phase disturbances over a 180/spl deg/ range. The IC was fabricated in a 0.25/spl mu/m CMOS process.
ISSN:0193-6530
2376-8606
DOI:10.1109/ISSCC.2003.1234293