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Distortion improvement of power amplifiers with digital predistortion

Bondar, Dmytro and Budimir, Djuradj (2009) Distortion improvement of power amplifiers with digital predistortion. In: IEEE 10th Annual Wireless and Microwave Technology Conference, 2009. (WAMICON '09), 20-21 April 2009, Clearwater, Florida. IEEE, pp. 1-2. ISBN 9781424445646

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Official URL: http://dx.doi.org/10.1109/WAMICON.2009.5207287


This paper presents an optimized digital predistortion (DPD) technique based on iterative injecting of distortion components into the baseband signal. The ratio of computation complexity to linearization degree can be regulated by choosing the appropriate number of injections. The proposed DPD technique allows achieving a significant increase in linearization degree and overcoming the distortion compensation limit. Experimental results for a 21-dB gain GaAs power amplifier fed with a 5-MHz digitally modulated signal show significant improvement in spectral regrowth.

Item Type:Book Section
Research Community:University of Westminster > Electronics and Computer Science, School of
ID Code:8997
Deposited On:19 Jan 2011 10:06
Last Modified:19 Jan 2011 10:06

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