Study and Analysis of a New Implementation of a Mixed-Signal Cartesian Feedback for a Low Power Zero-IF WCDMA Transmitter

Abstract : tThis paper, we proposes a new architecture to reduce the silicon area of the Cartesian feedback (CFB) used to linearize a power amplifier in WCDMA contextcommunication standard. The first stage of the previous version consists of two CORDIC structures in vector mode for the phase computation following by a subtractor. Here, we propose to merge these two CORDIC structures to obtain directly the phase difference between the feedback and the direct paths. This approach allows reducing the silicon area as well as the power consumption
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Conference papers
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https://hal.archives-ouvertes.fr/hal-00841311
Contributor : Eric Kerhervé <>
Submitted on : Thursday, July 4, 2013 - 2:31:53 PM
Last modification on : Wednesday, September 11, 2019 - 5:46:12 PM

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  • HAL Id : hal-00841311, version 1

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Alexis Aulery, Dominique Dallet, Bertrand Le Gal, Nathalie Deltimple, Didier Belot, et al.. Study and Analysis of a New Implementation of a Mixed-Signal Cartesian Feedback for a Low Power Zero-IF WCDMA Transmitter. NEWCAS, Jun 2013, PARIS, France. pp.1-4. ⟨hal-00841311⟩

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