Soutenance de thèse d'Ahmed Ashry

Bonjour,

j'ai le plaisir de vous inviter a la soutenance de thèse d'Ahmed Ashry
intitulée "Récepteur RF pour la radio-logicielle basé sur un convertisseur
Analogique-Numerique Sigma-Delta Passe-Bande" ainsi qu'au fabuleux pot qui
suivra.

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Vendredi 13 janvier 2012 à 10h30
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La soutenance se déroulera dans la salle des thèses du batiment Atrium,
campus de Jussieu.

Le jury sera composé de :

- Bram Nauta, Twente University, Les Pays-Bas, Rapporteur.
- Andreas Kaiser, ISEN-IEMN, Lille, Rapporteur.
- Andreia Cathelin, STMicroelectronics, Crolles.
- Dominique Morche, CEA-LETI, Grenoble.
- Geoffroy Klisnick, UPMC.
- Aziz Benlarbi-Delai, UPMC.
- Habib Mehrez, UPMC.
- Hassan Aboushady, UPMC.

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Summary
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The continuous improvement of both speed and density of digital circuits
in CMOS technologies makes it attractive to push most of the chip
functionality from the RF and analog domain to the digital domain. In an
RF receiver, this means to push the Analog-to-Digital Converter (ADC) near
the antenna to achieve what is commonly known as Software Defined Radio
(SDR). In SDR receivers, most of the analog blocks such as the
down-conversion mixer and the channel selection filter are moved to the
digital domain. In this case, most of the signal processing is done in the
flexible and programmable digital domain. One of the main challenges in
implementing an SDR receiver is the stringent ADC requirements. The ADC
must have a large bandwidth and a high dynamic range to be able to deal
with the targeted RF band in the presence of strong out-of-band blockers.
A promising technique to achieve these ADC specifications is to use a
bandpass LC Sigma-Delta ADC with an RF center frequency.