Linearization technique using digital Cartesian loop transmitter

The study of a digital Cartesian loop transmitter as power amplifier linearization technique is presented. It is based on the Cartesian loop architecture but introducing the advantages and possibilities of using digital solutions. Stability is assured by including some adjustment elements in the loo...

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Bibliographic Details
Main Authors: Garcia Ducar, P., de Mingo, J., Valdovinos, A.
Format: Conference Proceeding
Language:English
Subjects:
Delay
Digital signal processing
Feedback loop
Noise figure
Noise generators
Nonlinear distortion
Power amplifiers
Radio frequency
Radio transmitters
Radiofrequency amplifiers
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Description
Summary:The study of a digital Cartesian loop transmitter as power amplifier linearization technique is presented. It is based on the Cartesian loop architecture but introducing the advantages and possibilities of using digital solutions. Stability is assured by including some adjustment elements in the loop and the digital implementation avoids modulator and demodulator impairments and provides an accurate control and compensation of loop delay.
DOI:10.1109/PIMRC.2002.1046570