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Author: DANIEL.. DA FONSECA MUNFORD ARGOLLO
Publisher:
ISBN:
Category :
Languages : fr
Pages : 150
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Book Description
LES CIRCUITS RF ET MICROONDE DEVIENNENT DE PLUS EN PLUS GRANDS ET COMPLEXES. POUR GERER L'AUGMENTATION DE LA COMPLEXITE, DES EFFORTS DANS LA MODELISATION DES DISPOSITIFS ET DES CIRCUITS, DANS LE DEVELOPPEMENT DE METHODES D'ANALYSE PERFORMANTES ONT ETE REALISES. PAR CONTRE, LA SEMANTIQUE DES OUTILS DE SIMULATION N'A PAS BEAUCOUP CHANGEE. A LA FIN D'UNE CONCEPTION, ON OBTIENT UN ENSEMBLE DECONNECTE DE SCHEMATIQUES, DE PARAMETRES DE SIMULATION ET DE RESULTATS DE SIMULATION. LA SEQUENCE DES ACTIONS QUI ONT ETE EXECUTEES POUR LA PRODUCTION DU CIRCUIT FINAL N'EST PAS APPARENTE DANS CET ENSEMBLE D'INFORMATION. POUR CETTE RAISON, LA REUTILISATION DES CONCEPTIONS EST TOUJOURS DIFFICILE. CE TRAVAIL DE THESE EST CONSACRE A LA MISE EN UVRE D'UN ENVIRONNENT INFORMATIQUE DE CONCEPTION CAPABLE DE REPRESENTER LES CIRCUITS AVEC LEURS METHODOLOGIES DE CONCEPTION. L'IDEE CENTRALE CONSISTE A ETABLIR DES STRUCTURES D'INFORMATION DANS LESQUELLES IL EST POSSIBLE D'ENREGISTRER UNE CONCEPTION AVEC L'ENCHAINEMENT D'ACTIONS DE SIMULATION QUI ONT ETE EXECUTEES PAR LE CONCEPTEUR. UNE FOIS UNE CONCEPTION ENREGISTREE IL EST POSSIBLE DE LA REUTILISER. LA STRUCTURE DE DONNEES PROPOSEE PERMET AINSI UNE DOCUMENTATION PRECISE DE LA METHODOLOGIE DE CONCEPTION. POUR LA CONSTRUCTION DE L'ENVIRONNEMENT DE CONCEPTION, IL A ETE NECESSAIRE LA REALISATION DE REALISER UN SIMULATEUR DE CIRCUITS PERFORMANT APPELE LIANA. LE SIMULATEUR LIANA A COMME AVANTAGE D'ETRE OUVERT ET DE DONNER ACCES A CES PRINCIPALES FONCTIONNALITES A TRAVERS SES INTERFACES. CE SIMULATEUR A ETE INTEGRE DANS UN ENVIRONNENT DE SIMULATION COMMERCIALE.
Author: DANIEL.. DA FONSECA MUNFORD ARGOLLO
Publisher:
ISBN:
Category :
Languages : fr
Pages : 150
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Book Description
LES CIRCUITS RF ET MICROONDE DEVIENNENT DE PLUS EN PLUS GRANDS ET COMPLEXES. POUR GERER L'AUGMENTATION DE LA COMPLEXITE, DES EFFORTS DANS LA MODELISATION DES DISPOSITIFS ET DES CIRCUITS, DANS LE DEVELOPPEMENT DE METHODES D'ANALYSE PERFORMANTES ONT ETE REALISES. PAR CONTRE, LA SEMANTIQUE DES OUTILS DE SIMULATION N'A PAS BEAUCOUP CHANGEE. A LA FIN D'UNE CONCEPTION, ON OBTIENT UN ENSEMBLE DECONNECTE DE SCHEMATIQUES, DE PARAMETRES DE SIMULATION ET DE RESULTATS DE SIMULATION. LA SEQUENCE DES ACTIONS QUI ONT ETE EXECUTEES POUR LA PRODUCTION DU CIRCUIT FINAL N'EST PAS APPARENTE DANS CET ENSEMBLE D'INFORMATION. POUR CETTE RAISON, LA REUTILISATION DES CONCEPTIONS EST TOUJOURS DIFFICILE. CE TRAVAIL DE THESE EST CONSACRE A LA MISE EN UVRE D'UN ENVIRONNENT INFORMATIQUE DE CONCEPTION CAPABLE DE REPRESENTER LES CIRCUITS AVEC LEURS METHODOLOGIES DE CONCEPTION. L'IDEE CENTRALE CONSISTE A ETABLIR DES STRUCTURES D'INFORMATION DANS LESQUELLES IL EST POSSIBLE D'ENREGISTRER UNE CONCEPTION AVEC L'ENCHAINEMENT D'ACTIONS DE SIMULATION QUI ONT ETE EXECUTEES PAR LE CONCEPTEUR. UNE FOIS UNE CONCEPTION ENREGISTREE IL EST POSSIBLE DE LA REUTILISER. LA STRUCTURE DE DONNEES PROPOSEE PERMET AINSI UNE DOCUMENTATION PRECISE DE LA METHODOLOGIE DE CONCEPTION. POUR LA CONSTRUCTION DE L'ENVIRONNEMENT DE CONCEPTION, IL A ETE NECESSAIRE LA REALISATION DE REALISER UN SIMULATEUR DE CIRCUITS PERFORMANT APPELE LIANA. LE SIMULATEUR LIANA A COMME AVANTAGE D'ETRE OUVERT ET DE DONNER ACCES A CES PRINCIPALES FONCTIONNALITES A TRAVERS SES INTERFACES. CE SIMULATEUR A ETE INTEGRE DANS UN ENVIRONNENT DE SIMULATION COMMERCIALE.
Author: Daniel Da Fonseca Munford-Argollo
Publisher:
ISBN:
Category :
Languages : fr
Pages : 150
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Book Description
Author: Charles E. Free
Publisher: John Wiley & Sons
ISBN: 1119114632
Category : Technology & Engineering
Languages : en
Pages : 532
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Book Description
RF and Microwave Circuit Design Provides up-to-date coverage of the fundamentals of high-frequency microwave technology, written by two leading voices in the field RF and Microwave Circuit Design: Theory and Applications is an authoritative, highly practical introduction to basic RF and microwave circuits. With an emphasis on real-world examples, the text explains how distributed circuits using microstrip and other planar transmission lines can be designed and fabricated for use in modern high-frequency passive and active circuits and sub-systems. The authors provide clear and accurate guidance on each essential aspect of circuit design, from the theory of transmission lines to the passive and active circuits that form the basis of modern high-frequency circuits and sub-systems. Assuming a basic grasp of electronic concepts, the book is organized around first principles and includes an extensive set of worked examples to guide student readers with no prior grounding in the subject of high-frequency microwave technology. Throughout the text, detailed coverage of practical design using distributed circuits demonstrates the influence of modern fabrication processes. Filling a significant gap in literature by addressing RF and microwave circuit design with a central theme of planar distributed circuits, this textbook: Provides comprehensive discussion of the foundational concepts of RF and microwave transmission lines introduced through an exploration of wave propagation along a typical transmission line Describes fabrication processes for RF and microwave circuits, including etched, thick-film, and thin-film RF circuits Covers the Smith Chart and its application in circuit design, S-parameters, Mason???s non-touching loop rule, transducer power gain, and stability Discusses the influence of noise in high-frequency circuits and low-noise amplifier design Features an introduction to the design of high-frequency planar antennas Contains supporting chapters on fabrication, circuit parameters, and measurements Includes access to a companion website with PowerPoint slides for instructors, as well as supplementary resources Perfect for senior undergraduate students and first-year graduate students in electrical engineering courses, RF and Microwave Circuit Design: Theory and Applications will also earn a place in the libraries of RF and microwave professionals looking for a useful reference to refresh their understanding of fundamental concepts in the field.
Author: Stéphane Dellier
Publisher:
ISBN:
Category :
Languages : fr
Pages : 213
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Book Description
Ce travail traite des différents aspects de la conception des circuits micro-ondes actifs, et plus particulièrement du développement des outils d'assistance à la conception permettant de mettre en oeuvre rapidement des méthodologies avancées tout en gardant le maximum de degrés de liberté pour intégrer de nouvelles connaissances. Les deux parties de ce manuscrit concernent : - la réalisation à 40GHz en technologie pHEMT AsGa d'un driver MMIC de modulateur électro-absorbant InP pour la génération d'impulsions optiques. Une méthodologie de conception de driver de MEA a été développée permettant la prise en compte directe dans la phase de CAO hyperfréquence, du composant optique et de ses caractéristiques. Cette méthodologie a été appliquée dans le cadre d'une collaboration avec Alcatel-Opto+ à la réalisation d'un circuit driver MMIC de commande à 40 GHZ, en technologie pHEMT 0.15 μm AsGa d'OMMIC. Cette réalisation a permis de valider la pertinence de la méthodologie utilisée et a permis de démontrer l'intérêt de la fonction driver+MEA sur InP pour la génération d'impulsions optiques très courtes et avec un fort taux d'extinction à 40 GHz. - le développement d'un outil d'assistance à la conception des circuits micro-ondes. Dans le cadre d'un programme de recherche en collaboration avec le CNES, un assistant à la conception des circuits non linéaires micro-ondes a été développé. L'objectif est de mettre à la disposition des concepteurs, un outil informatique à même de les guider efficacement dans leur démarche de conception et de leur faciliter l'implémentation de méthodes adaptées afin de leur permettre de passer plus de temps sur les problèmes de conception et le développement de solutions innovantes
Author: Krishnanand N. Kaipa
Publisher: Springer
ISBN: 3319515950
Category : Technology & Engineering
Languages : en
Pages : 265
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Book Description
This book provides a comprehensive account of the glowworm swarm optimization (GSO) algorithm, including details of the underlying ideas, theoretical foundations, algorithm development, various applications, and MATLAB programs for the basic GSO algorithm. It also discusses several research problems at different levels of sophistication that can be attempted by interested researchers. The generality of the GSO algorithm is evident in its application to diverse problems ranging from optimization to robotics. Examples include computation of multiple optima, annual crop planning, cooperative exploration, distributed search, multiple source localization, contaminant boundary mapping, wireless sensor networks, clustering, knapsack, numerical integration, solving fixed point equations, solving systems of nonlinear equations, and engineering design optimization. The book is a valuable resource for researchers as well as graduate and undergraduate students in the area of swarm intelligence and computational intelligence and working on these topics.
Author: Robert Perret
Publisher: John Wiley & Sons
ISBN: 1118623207
Category : Technology & Engineering
Languages : en
Pages : 381
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Book Description
This book relates the recent developments in several key electrical engineering R&D labs, concentrating on power electronics switches and their use. The first sections deal with key power electronics technologies, MOSFETs and IGBTs, including series and parallel associations. The next section examines silicon carbide and its potentiality for power electronics applications and its present limitations. Then, a dedicated section presents the capacitors, key passive components in power electronics, followed by a modeling method allowing the stray inductances computation, necessary for the precise simulation of switching waveforms. Thermal behavior associated with power switches follows, and the last part proposes some interesting prospectives associated to Power Electronics integration.
Author: Max Giordano
Publisher: John Wiley & Sons
ISBN: 1118587529
Category : Business & Economics
Languages : en
Pages : 389
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Book Description
This book gives a comprehensive view of the most recent major international research in the field of tolerancing, and is an excellent resource for anyone interested in Computer Aided Tolerating. It is organized into 4 parts. Part 1 focuses on the more general problems of tolerance analysis and synthesis, for tolerancing in mechanical design and manufacturing processes. Part 2 specifically highlights the simulation of assembly with defects, and the influence of tolerances on the quality of the assembly. Part 3 deals with measurement aspects, and quality control throughout the life cycle. Different measurement technologies and methods for estimating uncertainty are considered. In Part 4, different aspects of tolerancing and their interactions are explored, from the definition of functional requirement to measurement processes in a PLM approach.
Author: Richard Escadafal
Publisher: IRD Orstom
ISBN:
Category : Geographic information systems
Languages : fr
Pages : 674
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Book Description
ISSS congress remote sensing
Author: Aditya Johri
Publisher: Cambridge University Press
ISBN: 1107785855
Category : Technology & Engineering
Languages : en
Pages : 1124
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Book Description
The Cambridge Handbook of Engineering Education Research is the critical reference source for the growing field of engineering education research, featuring the work of world luminaries writing to define and inform this emerging field. The Handbook draws extensively on contemporary research in the learning sciences, examining how technology affects learners and learning environments, and the role of social context in learning. Since a landmark issue of the Journal of Engineering Education (2005), in which senior scholars argued for a stronger theoretical and empirically driven agenda, engineering education has quickly emerged as a research-driven field increasing in both theoretical and empirical work drawing on many social science disciplines, disciplinary engineering knowledge, and computing. The Handbook is based on the research agenda from a series of interdisciplinary colloquia funded by the US National Science Foundation and published in the Journal of Engineering Education in October 2006.
Author: Unesco
Publisher: UNESCO
ISBN: 9231041568
Category : Technology & Engineering
Languages : en
Pages : 392
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Book Description
This report reviews engineering's importance to human, economic, social and cultural development and in addressing the UN Millennium Development Goals. Engineering tends to be viewed as a national issue, but engineering knowledge, companies, conferences and journals, all demonstrate that it is as international as science. The report reviews the role of engineering in development, and covers issues including poverty reduction, sustainable development, climate change mitigation and adaptation. It presents the various fields of engineering around the world and is intended to identify issues and challenges facing engineering, promote better understanding of engineering and its role, and highlight ways of making engineering more attractive to young people, especially women.--Publisher's description.
