Titre :

Architecture level center frequency drift compensation method for micro-mechanical filters used in IF stages of wireless telecommunication receivers

Auteur(s) :

Billoint, Olivier [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Galayko, Dimitri [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Legrand, Bernard [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Kaiser, Andreas [Auteur]
Microélectronique Silicium - IEMN [MICROELEC SI - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]

Titre de la manifestation scientifique :

Design, Test, Integration, and Packaging of MEMS/MOEMS, DTIP 2002

Ville :

Canne

Pays :

France

Date de début de la manifestation scientifique :

2002-05-06

Titre de l’ouvrage :

Proceedings of the SPIE - International Society for Optical Engineering

Titre de la revue :

Proceedings of the SPIE - International Society for Optical Engineering

Éditeur :

SPIE – The International Society for Optical Engineering, Bellingham, WA, USA

Date de publication :

2002

Discipline(s) HAL :

Sciences de l'ingénieur [physics]

Résumé en anglais : [en]

A prototype of a 433.92 MHz RF receiver using a micro-mechanical resonator as channel-selection filter in the 2nd IF stage has been realized (94.5 kHz center frequency, 20 Hz bandwidth). A novel approach is used for managing ...
Lire la suite >A prototype of a 433.92 MHz RF receiver using a micro-mechanical resonator as channel-selection filter in the 2nd IF stage has been realized (94.5 kHz center frequency, 20 Hz bandwidth). A novel approach is used for managing the temperature drift of the center frequency of the micro-mechanical filter. Instead of stabilizing the filter’s center frequency by complex device-level and technological modifications (bias voltage tuning, mechanical or thermal compensation), we modified the architecture of the IF stage in order to continuously adapt the IF frequency to the filter’s center frequency deviations. This is achieved by periodical real-time measurements of the filter’s center frequency and by then generating the appropriate second LO frequency. The measurement of the center frequency is achieved by putting the filter in an oscillating closed loop. The measured relative matching error between the 2nd IF frequency and the filter’s center frequency is better than 0.005%.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL