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Co-conception et caractérisation de circuits actifs et passifs tri-dimensionnels en bande K pour l'intégration de mycrosystèmes sur silicium aux fréquences milimétriques

Minh-Nhut Do 1
1 LAAS-MINC - Équipe MIcro et Nanosystèmes pour les Communications sans fil
LAAS - Laboratoire d'analyse et d'architecture des systèmes
Abstract : The work presented in this thesis addresses the potentialities of new technologies available to responds to firstly the needs of increased operating frequencies and secondly to the miniaturization of the communication systems with enhanced RF performances. This study is based on the design of an image rejected mixer which allows slackening the constraints on the image filter in the front of the system. The integration of the two parts active and passive of the system, has been carried out with the aim to get the maximum of the potentialities of each technology, to offer technical solutions to overcome the disadvantages of each technology, to optimise the global architecture by dividing the system according to the constraints of the technology and/or the technical constraints. The first part of this study deal with the development of a new mixer structure in the K band with enhanced linearity and based on heterojunction transistors. Based on an understanding of intrinsic phenomena of the circuit, modified topologies have been proposed as well to improve the whole performances achievable in such technology. The second part of this study investigates on the design of passive couplers, in K band too, with the aim of miniaturizing these functions to the maximum. A design method has been developed and validated thanks to the integration in a specific technology developed at the LAAS-CNRS and compatible with future integration with the active circuits. Therefore, optimal performances (state of the art) have been obtained with an integration level improved by 2. Finally, at the beginning and end of this work, a study on the global architecture of the image rejected mixer system has been investigate, and continuously refined, to divide the performance constraints between the different blocks and to verify the obtaining performances.
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https://tel.archives-ouvertes.fr/tel-00196619
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Submitted on : Thursday, December 13, 2007 - 10:52:20 AM
Last modification on : Friday, January 10, 2020 - 9:10:13 PM
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  • HAL Id : tel-00196619, version 1

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Minh-Nhut Do. Co-conception et caractérisation de circuits actifs et passifs tri-dimensionnels en bande K pour l'intégration de mycrosystèmes sur silicium aux fréquences milimétriques. Micro et nanotechnologies/Microélectronique. Université Paul Sabatier - Toulouse III, 2007. Français. ⟨tel-00196619⟩

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