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Partager le résultat de cette recherche Interroger des sources externesContribution à l’élaboration d’un modèle de couplage electromagnétique ligne microstrip - guide d’onde intégré au substrat. / Farouk Grine
Titre : Contribution à l’élaboration d’un modèle de couplage electromagnétique ligne microstrip - guide d’onde intégré au substrat. Type de document : texte imprimé Auteurs : Farouk Grine, Auteur ; Mohamed-Taoufik Benhabiles, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 109 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles. Langues : Français (fre) Tags : Guide d’onde intégré au substrat ligne microstrip transition taper trous d'air Méthode de Raccordement des Modes périodicité dans la permittivité Facteur de qualité cavité filtre Substrate integrated waveguide microstrip line tapered transition air holes mode matching method periodically drilled SIW Quality factor cavity filter ?????? ?????? ?????? ?? ???????? ?? ???? ???????? ???? ?????? ????? ???????? ???????? ? ???????? Index. décimale : 621 Electronique Résumé : The substrate integrated waveguide (SIW) technology is an emerging design and very promising for the development of circuits and components operating in the region of millimeter waves and microwave. Among major advantages of SIW technology is the ability to manufacture a complete circuit in planar form, using a standard printed circuit board or other plan processing techniques. Transitions between the microstrip line and GIS structures represent another important element related to the SIW components. More importantly, it is required to use low-reflection transitions to microstrip in order to integrate SIW circuits with active components, and therefore it is necessary to create low-reflection transitions so that the component design is independent of
the influences of the transitions.
In this context for improving the transition between the microstrip line and the substrate integrated waveguide, we proposed a novel transition based on the idea of good confinement of electromagnetic fields on both sides of the microstrip line. This transition constructed by placing one row of not metallized air-vias on both sides of the microstrip line.
Thereafter, we will present the studies of the cavities and filters based on substrate integrated waveguide technologies by the mode matching Method and extraction of the S parameters .
Finally, microwave filters are essential components in all types of telecommunication systems. The development of future applications of wireless technologies, filters should be compact, lightweight and exhibiting high selectivity with low insertion loss. To achieve these desired properties simultaneously, we will present a new planar cavity, which we used to design the filter.
The idea of this cavity are based on a periodic artificial modification of the main line material with a permittivity of εr1 by drilling air vias in the substrate to reach a specific permittivity εr2. The resonator cavity shows an unloaded Q factor of 815. The new filter shows improved performance in terms of loss and bandwidth.Diplôme : Doctorat En ligne : ../theses/electronique/GRI7186.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10734 Contribution à l’élaboration d’un modèle de couplage electromagnétique ligne microstrip - guide d’onde intégré au substrat. [texte imprimé] / Farouk Grine, Auteur ; Mohamed-Taoufik Benhabiles, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2018 . - 109 f. ; 30 cm.
2 copies imprimées disponibles.
Langues : Français (fre)
Tags : Guide d’onde intégré au substrat ligne microstrip transition taper trous d'air Méthode de Raccordement des Modes périodicité dans la permittivité Facteur de qualité cavité filtre Substrate integrated waveguide microstrip line tapered transition air holes mode matching method periodically drilled SIW Quality factor cavity filter ?????? ?????? ?????? ?? ???????? ?? ???? ???????? ???? ?????? ????? ???????? ???????? ? ???????? Index. décimale : 621 Electronique Résumé : The substrate integrated waveguide (SIW) technology is an emerging design and very promising for the development of circuits and components operating in the region of millimeter waves and microwave. Among major advantages of SIW technology is the ability to manufacture a complete circuit in planar form, using a standard printed circuit board or other plan processing techniques. Transitions between the microstrip line and GIS structures represent another important element related to the SIW components. More importantly, it is required to use low-reflection transitions to microstrip in order to integrate SIW circuits with active components, and therefore it is necessary to create low-reflection transitions so that the component design is independent of
the influences of the transitions.
In this context for improving the transition between the microstrip line and the substrate integrated waveguide, we proposed a novel transition based on the idea of good confinement of electromagnetic fields on both sides of the microstrip line. This transition constructed by placing one row of not metallized air-vias on both sides of the microstrip line.
Thereafter, we will present the studies of the cavities and filters based on substrate integrated waveguide technologies by the mode matching Method and extraction of the S parameters .
Finally, microwave filters are essential components in all types of telecommunication systems. The development of future applications of wireless technologies, filters should be compact, lightweight and exhibiting high selectivity with low insertion loss. To achieve these desired properties simultaneously, we will present a new planar cavity, which we used to design the filter.
The idea of this cavity are based on a periodic artificial modification of the main line material with a permittivity of εr1 by drilling air vias in the substrate to reach a specific permittivity εr2. The resonator cavity shows an unloaded Q factor of 815. The new filter shows improved performance in terms of loss and bandwidth.Diplôme : Doctorat En ligne : ../theses/electronique/GRI7186.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10734 Exemplaires
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Titre : Étude de cristaux photoniques en silicium pour l'application à la biodétection Type de document : texte imprimé Auteurs : Dallel Benelarbi, Auteur ; Touraya Bouchemat, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 120 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Tags : cristaux photoniques silicium biocapteurs guide d'onde cavité SOI sensibilité FDTD-2D photonic crystals silicon biosensors waveguide cavity sensitivity ???????? ??????? ???????? ?????????? ??????? ?????? ?????? ??????? .FDTD-2D ????????SOI Index. décimale : 621 Electronique Résumé : This thesis is dedicated to the study and design of new structures for optical detection. Indeed, the development of these optical devices has a growing and particular interest, particularly for targeting and identifying biological species. For this purpose, the photonic crystal-based components (CPs) have been widely exploited in the field of bio-detection.
Silicon is an ideal candidate designated as a support material for the realization of these devices. In this context, new coupling techniques between waveguide and optical cavity based on planar photonic crystals, made on a silicon-on-insulator (SOI) substrate, have been developed. To do this, we are modeling these bio detectors, optimizing their key parameters such as the quality factor and sensitivity to the optical index of the external environment, using commercial software Fullwave and Crystalwave that exploit the finite difference method in the two-dimensional time domain (FDTD-2D). We first studied the parallel coupling between a resonant cavity and a waveguide (W1) for application to the detection of DNA biomolecules. The originality of this study is to consider several sensors on a single platform, and to demonstrate that each sensor could detect a target independently and without interaction with others, without losses, and this, by acting on the parameters influencing the
essential characteristics, we note a high sensitivity and a low limit of detection. As for the second geometry studied, it consists of another coupling path, the latter comprises two sections of guides W1 between which has been arranged a ring cavity. We have also optimized the different structural parameters for this configuration, in order to improve the sensitivity and the quality factor in order to obtain another type of high-performance sensor, namely the temperature sensor. For this, we consider the evolution of the sensitivity as a function of the change in the temperature of the water, convincing results were noted.
Diplôme : Doctorat En ligne : ../theses/electronique/BEN7253.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10845 Étude de cristaux photoniques en silicium pour l'application à la biodétection [texte imprimé] / Dallel Benelarbi, Auteur ; Touraya Bouchemat, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2018 . - 120 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : cristaux photoniques silicium biocapteurs guide d'onde cavité SOI sensibilité FDTD-2D photonic crystals silicon biosensors waveguide cavity sensitivity ???????? ??????? ???????? ?????????? ??????? ?????? ?????? ??????? .FDTD-2D ????????SOI Index. décimale : 621 Electronique Résumé : This thesis is dedicated to the study and design of new structures for optical detection. Indeed, the development of these optical devices has a growing and particular interest, particularly for targeting and identifying biological species. For this purpose, the photonic crystal-based components (CPs) have been widely exploited in the field of bio-detection.
Silicon is an ideal candidate designated as a support material for the realization of these devices. In this context, new coupling techniques between waveguide and optical cavity based on planar photonic crystals, made on a silicon-on-insulator (SOI) substrate, have been developed. To do this, we are modeling these bio detectors, optimizing their key parameters such as the quality factor and sensitivity to the optical index of the external environment, using commercial software Fullwave and Crystalwave that exploit the finite difference method in the two-dimensional time domain (FDTD-2D). We first studied the parallel coupling between a resonant cavity and a waveguide (W1) for application to the detection of DNA biomolecules. The originality of this study is to consider several sensors on a single platform, and to demonstrate that each sensor could detect a target independently and without interaction with others, without losses, and this, by acting on the parameters influencing the
essential characteristics, we note a high sensitivity and a low limit of detection. As for the second geometry studied, it consists of another coupling path, the latter comprises two sections of guides W1 between which has been arranged a ring cavity. We have also optimized the different structural parameters for this configuration, in order to improve the sensitivity and the quality factor in order to obtain another type of high-performance sensor, namely the temperature sensor. For this, we consider the evolution of the sensitivity as a function of the change in the temperature of the water, convincing results were noted.
Diplôme : Doctorat En ligne : ../theses/electronique/BEN7253.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10845 Exemplaires
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Titre : Étude des composants à base de cristaux photoniques : Application dans le domaine du démultiplexage et de la détection. Type de document : texte imprimé Auteurs : Safia Arafa, Auteur ; Mohamed Bouchemat, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 150 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Tags : cristaux photoniques l'optique intégrée biocapteurs démultiplexeur cavité FDTD Photonic crystal integrated optics biosensors demultiplexer cavity ??????? ??????? ???????? ????????? ????? ????????? ?????????? ?????? ????? ??????? Index. décimale : 621 Electronique Résumé : Nowadays, the development of biological sensors has become a major issue in order to meet the current and the
future needs in diverse areas demanded. Real-time detection or analysis should be preferred and the response should be easy to read and extremely fast. In parallel, the progress of nanotechnologies and in particular those of photonic crystals, which make it possible to manipulate the light at nanometric resolution, and thus at the biomolecule scale, offers the possibility of achieving a new high-performed detection platform.
In this context, this thesis aims to study and to design refractive index biosensors based on photonic crystals. The structures proposed are essentially based on a H0 cavity coupled waveguide system. The main objective of our work remains the enhancement of light confinement within the cavity area. In the first part of this work we analyze in detail the influence of the cavity geometry on the detection performances. Thus, we present a configuration based on ringed air holes to improve the detection properties. In order to integrate several detection units in the same photonic crystal platform, the wavelength division demultiplexing (WDM) technique to spatially separate the responses of the integrated biosensors will be studied: Two structures of demultiplexers based on a selective filtering will also be presented. As for the case of a single biosensor and based on this technique the configurations of classical and ringed biosensor array will be studied and simultaneously evaluated. The optical properties of these photonic structures will be numerically evaluated by performing simulations based on the finite difference time domain (FDTD) method. The obtained results indicate that the response of each sensor unit shifts independently in terms of refractive index variations. Accordingly, a sensitivity of 450 nm / RIU and a crosstalk of less than -43.78 dB have been achieved for the ringed configuration, while maintaining a quality factor as high as 5.74×104. These features make the designed structure a promising platform for performing monolithic integration and high multiplexed label-free detection.Diplôme : Doctorat En ligne : ../theses/electronique/ARA7278.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10893 Étude des composants à base de cristaux photoniques : Application dans le domaine du démultiplexage et de la détection. [texte imprimé] / Safia Arafa, Auteur ; Mohamed Bouchemat, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2018 . - 150 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : cristaux photoniques l'optique intégrée biocapteurs démultiplexeur cavité FDTD Photonic crystal integrated optics biosensors demultiplexer cavity ??????? ??????? ???????? ????????? ????? ????????? ?????????? ?????? ????? ??????? Index. décimale : 621 Electronique Résumé : Nowadays, the development of biological sensors has become a major issue in order to meet the current and the
future needs in diverse areas demanded. Real-time detection or analysis should be preferred and the response should be easy to read and extremely fast. In parallel, the progress of nanotechnologies and in particular those of photonic crystals, which make it possible to manipulate the light at nanometric resolution, and thus at the biomolecule scale, offers the possibility of achieving a new high-performed detection platform.
In this context, this thesis aims to study and to design refractive index biosensors based on photonic crystals. The structures proposed are essentially based on a H0 cavity coupled waveguide system. The main objective of our work remains the enhancement of light confinement within the cavity area. In the first part of this work we analyze in detail the influence of the cavity geometry on the detection performances. Thus, we present a configuration based on ringed air holes to improve the detection properties. In order to integrate several detection units in the same photonic crystal platform, the wavelength division demultiplexing (WDM) technique to spatially separate the responses of the integrated biosensors will be studied: Two structures of demultiplexers based on a selective filtering will also be presented. As for the case of a single biosensor and based on this technique the configurations of classical and ringed biosensor array will be studied and simultaneously evaluated. The optical properties of these photonic structures will be numerically evaluated by performing simulations based on the finite difference time domain (FDTD) method. The obtained results indicate that the response of each sensor unit shifts independently in terms of refractive index variations. Accordingly, a sensitivity of 450 nm / RIU and a crosstalk of less than -43.78 dB have been achieved for the ringed configuration, while maintaining a quality factor as high as 5.74×104. These features make the designed structure a promising platform for performing monolithic integration and high multiplexed label-free detection.Diplôme : Doctorat En ligne : ../theses/electronique/ARA7278.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10893 Exemplaires
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Titre : Génération d’entropie due au refroidissement par convection naturelle d’un nanofluide Type de document : texte imprimé Auteurs : Abd el malik Bouchoucha, Auteur ; Rachid Bessaih, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2017 Importance : 159 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Tags : Nanofluide Génération d’entropie Convection naturelle Cavité Nanofluid Entropy generation Natural convection Cavity ????? ?????? ????? ? ???????? ????? ??????? ??????? ???? Index. décimale : 620 Génie Mécanique Résumé : Venous thromboembolism (VTE) is a multifactorial disease in which the genetic
component is important.Many genetic risk factors have been identified for causing VTE.
Most of them affect the function of natural anticoagulant pathways, particularly the prote
Diplôme : Doctorat En ligne : ../theses/gmecanique/BOU7046.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10553 Génération d’entropie due au refroidissement par convection naturelle d’un nanofluide [texte imprimé] / Abd el malik Bouchoucha, Auteur ; Rachid Bessaih, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2017 . - 159 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : Nanofluide Génération d’entropie Convection naturelle Cavité Nanofluid Entropy generation Natural convection Cavity ????? ?????? ????? ? ???????? ????? ??????? ??????? ???? Index. décimale : 620 Génie Mécanique Résumé : Venous thromboembolism (VTE) is a multifactorial disease in which the genetic
component is important.Many genetic risk factors have been identified for causing VTE.
Most of them affect the function of natural anticoagulant pathways, particularly the prote
Diplôme : Doctorat En ligne : ../theses/gmecanique/BOU7046.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10553 Exemplaires
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