Mixed Cartesian Feedback for Zero-IF WCDMA Transmitter

In this paper, a new adaptive power amplifier (PA) linearization technique is presented. The idea is to consider a classic WCDMA Zero-Intermediate Frequency (Zero-IF) transmitter with a modified Cartesian feedback (CFB) loop. The new transmitter architecture consists of an analog stage including forward I/Q modulator and feedback I/Q demodulator and a digital stage adjusting the phase rotation around the loop. The digital phase-alignment system consumes 2.94 mW (tree time less than a full-analog system).

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Electronique

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lascas2011_submission_56_Final.pdf (481.41 Ko)

Origine	Fichiers produits par l'(les) auteur(s)

Nicolas Delaunay : Connectez-vous pour contacter le contributeur

https://hal.science/hal-00586824

Soumis le : lundi 18 avril 2011-15:11:52

Dernière modification le : mercredi 20 décembre 2023-11:22:49

Archivage à long terme le : mardi 19 juillet 2011-02:55:57

Dates et versions

hal-00586824 , version 1 (18-04-2011)

Identifiants

HAL Id : hal-00586824 , version 1
DOI : 10.1109/LASCAS.2011.5750300

Citer

Mohamed Abid, Nicolas Delaunay, Bertrand Le Gal, Dominique Dallet, Chiheb Rebai, et al.. Mixed Cartesian Feedback for Zero-IF WCDMA Transmitter. LASCAS 2011, Feb 2011, Bogota, Colombia. pp.1, ⟨10.1109/LASCAS.2011.5750300⟩. ⟨hal-00586824⟩

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