Digitally Assisted Feedforward Compensation of Cartesian-Feedback Power-Amplifier Systems

This brief describes digitally assisted feedforward compensation to extend the bandwidth and to enhance the in-band linearity of Cartesian-feedback (CFB) power-amplifier (PA) systems. The proposed technique combines the strength of the CFB, which is chiefly relaxed PA modeling requirements, with the...

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Veröffentlicht in:	IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2011-08, Vol.58 (8), p.457-461
Hauptverfasser:	Boo, H. H., SungWon Chung, Dawson, J. L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplitude modulation Bandwidth Cartesian feedback (CFB) Compensation digital predistortion (DPD) digitally assisted Distortion Feedback Feedback loop Feedforward Feedforward neural networks intermodulation distortion Linearity Mathematical models Noise levels power-amplifier (PA) linearization Predistortion Table lookup
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