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Etude De Loptimisation Des Circuits Non Lineaires Microondes
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Book Synopsis Etude de l'optimisation des circuits non linéaires microondes by : Agnès Recly-Lesecq
Download or read book Etude de l'optimisation des circuits non linéaires microondes written by Agnès Recly-Lesecq and published by . This book was released on 1993 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL PROPOSE UNE ETUDE DE L'OPTIMISATION DES CIRCUITS NON LINEAIRES MICROONDES, A PARTIR D'UN LOGICIEL D'ANALYSE NON LINEAIRE DE TYPE EQUILIBRAGE HARMONIQUE. L'ARCHITECTURE DE CE DERNIER PERMET D'INSERER DE NOUVELLES FONCTIONNALITES TELLES QU'UN PROCESSUS D'OPTIMISATION. ON MONTRE COMMENT CHOISIR UNE FONCTION OBJECTIF APPROPRIEE AFIN DE TROUVER L'OPTIMUM D'UNE PERFORMANCE D'UN CIRCUIT TEL QU'UN AMPLIFICATEUR DE PUISSANCE. UN CHOIX EST AUSSI EFFECTUE ENTRE TOUTES LES METHODES D'OPTIMISATION CLASSIQUES, AFIN DE SELECTIONNER QUI PREND LE MIEUX EN COMPTE LES PARTICULARITES DE L'ANALYSE NON LINEAIRE. CE LOGICIEL POURRA EVOLUER AFIN D'OPTIMISER D'AUTRES DISPOSITIFS NON LINEAIRES MICROONDES ET DE S'ADAPTER AUX EXIGENCES CROISSANTES DES CONCEPTEURS DE CIRCUITS
Book Synopsis Contribution à l'optimisation de circuits microondes non linéaires by : Mustapha C. E.. Yagoub
Download or read book Contribution à l'optimisation de circuits microondes non linéaires written by Mustapha C. E.. Yagoub and published by . This book was released on 1994 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA CONCEPTION DE CIRCUITS MICRO-ONDES NON LINEAIRES S'EST DEVELOPPEE DE MANIERE CONSIDERABLE DURANT CES DERNIERES ANNEES. DES COMPOSANTS ONT ETE SIMULES ET DES METHODES D'ANALYSE ONT ETE MISES EN UVRE POUR ATTEINDRE LES PERFORMANCES DESIREES. DE PLUS, UNE ETAPE D'OPTIMISATION S'EST AVEREE NECESSAIRE CAR LA THEORIE DES CIRCUITS NON LINEAIRES NE PERMET PAS D'INDIQUER DE PRIME ABORD LES TOPOLOGIES OPTIMALES CORRESPONDANT A UNE FONCTION NON LINEAIRE DONNEE. COMME L'OPTIMISATION A TOPOLOGIE FIXEE N'EST PRATIQUEMENT UTILISEE QUE POUR OPTIMISER UN SEUL ELEMENT A LA FOIS, C'EST VERS L'OPTIMISATION D'UN COMPOSANT SELON SA CARACTERISTIQUE, SANS IMPOSER DE TOPOLOGIE, QUE S'ORIENTENT LES RECHERCHES. LE PRINCIPE EST DE FIXER LES TENSIONS A L'ENTREE DU COMPOSANT NON LINEAIRE AFIN DE DETERMINER LES COURANTS OPTIMA ET PAR LA MEME LES CHARGES OPTIMALES CORRESPONDANTES. CEPENDANT, CETTE APPROCHE EST NUMERIQUE ET DONC SPECIFIQUE A CHAQUE TYPE DE FONCTION NON LINEAIRE A OPTIMISER. NOUS AVONS ALORS DEVELOPPE UNE APPROCHE D'OPTIMISATION SIMILAIRE PUISQU'ELLE CONSISTE A DETERMINER LES CHARGES OPTIMALES DE L'ELEMENT ACTIF SANS TOPOLOGIE IMPOSEE. L'INTERET DE LA METHODE RESIDE DANS LE FAIT QUE LA DEMARCHE EST ANALYTIQUE, DONC INDEPENDANTE DE LA FONCTION NON LINEAIRE A OPTIMISER. ELLE SE BASE SUR LA DETERMINATION, DANS L'ESPACE DES PUISSANCES, D'UNE SURFACE APPELEE SURFACE CARACTERISTIQUE RENFERMANT TOUTES LES PUISSANCES PERMISES AUX PORTES DE L'ELEMENT NON LINEAIRE AFIN D'EN DEDUIRE LES PUISSANCES OPTIMALES ET PAR LA MEME LES CHARGES OPTIMALES CORRESPONDANTES. APPLIQUEE AUX MULTIPLICATEURS DE FREQUENCE, NOTRE APPROCHE A DONNE DES RESULTATS SATISFAISANTS
Book Synopsis Etude de l'optimisation des circuits non lineaires microondes by : Agnes Recly-Lesecq
Download or read book Etude de l'optimisation des circuits non lineaires microondes written by Agnes Recly-Lesecq and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ETUDE DES SENSIBILITES POUR LES CIRCUITS LINEAIRES MICROONDES PAR LA METHODE DU RESEAU ADJOINT by : THIERRY.. REDON
Download or read book ETUDE DES SENSIBILITES POUR LES CIRCUITS LINEAIRES MICROONDES PAR LA METHODE DU RESEAU ADJOINT written by THIERRY.. REDON and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LA METHODE DU RESEAU ADJOINT COMBINEE A UNE ANALYSE NODALE POUR CIRCUITS LINEAIRES HYPERFREQUENCES, A PERMIS DE METTRE AU POINT UN LOGICIEL CALCULANT LES SENSIBILITES ABSOLUES ET RELATIVES D'ORDRE 1, 2 ET 3 DES PRINCIPALES FONCTIONS MICROONDES. CES SENSIBILITES PEUVENT ETRE CALCULEES PAR RAPPORT A DES ELEMENTS A CONSTANTES LOCALISEES (R, L, C...) ET DISTRIBUEES (LIGNES DE TRANSMISSION), AINSI QUE PAR RAPPORT A DES ELEMENTS REPRESENTES SOUS FORME DE QUADRIPOLE. LE CALCUL DE CES SENSIBILITES A TROUVE UNE APPLICATION DANS LE DOMAINE DE L'OPTIMISATION PAR LA METHODE DE NEWTON
Book Synopsis Méthode d'optimisation des circuits non-linéaires microondes by : Chaoying Guo
Download or read book Méthode d'optimisation des circuits non-linéaires microondes written by Chaoying Guo and published by . This book was released on 1989 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Système automatique de caractérisation des quadripoles non linéaires microondes by : Jean-Michel Nébus
Download or read book Système automatique de caractérisation des quadripoles non linéaires microondes written by Jean-Michel Nébus and published by . This book was released on 1988 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: La réalisation d'un système de caractérisation expérimentale par ondes de puissance à la fréquence fondamentale, des quadripôles microondes non linéaires constitue l'objet de cette thèse. L'originalité de ce travail réside dans le couplage du système de mesure à un logiciel d'acquisition et de traitement automatique des données. L'application de ce système est la conception optimale d'amplificateurs et d'oscillateurs de puissance. Pour un transistor à effet de champ, la comparaison des mesures en "fort niveau" et des résultats obtenus à l'aide d'un logiciel d'optimisation des circuits non linéaires a démontré la validité du système. Or indique enfin, les perspectives ouvertes par cette méthode de caractérisation expérimentale.
Book Synopsis METHODES DE PARAMETRISATION EN VUE DE LA MODELISATION ET DE L'OPTIMISATION ELECTROMAGNETIQUE DES STRUCTURES MICRO-ONDES - APPLICATION AUX METHODES DES ELEMENTS FINIS ET DES DIFFERENCES FINIES by : AZEDDINE.. GATI
Download or read book METHODES DE PARAMETRISATION EN VUE DE LA MODELISATION ET DE L'OPTIMISATION ELECTROMAGNETIQUE DES STRUCTURES MICRO-ONDES - APPLICATION AUX METHODES DES ELEMENTS FINIS ET DES DIFFERENCES FINIES written by AZEDDINE.. GATI and published by . This book was released on 2000 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS CE MEMOIRE, NOUS PRESENTONS DES METHODES DE PARAMETRISATION POUR LA MODELISATION ET L'OPTIMISATION DES STRUCTURES MICRO-ONDES. LES TECHNIQUES PROPOSEES SONT COUPLEES AUX METHODES DES ELEMENTS FINIS ET LA FDTD. LA PARAMETRISATION IMPLIQUE LA CONSTRUCTION D'UN MODELE ANALYTIQUE CAPABLE D'EVALUER RAPIDEMENT ET AVEC PRECISION LES PERFORMANCES DES CIRCUITS EM EN FONCTION DE LA VARIATION DES PARAMETRES GEOMETRIQUES ET PHYSIQUES DES CIRCUITS SANS AVOIR RECOURS A LA RESOLUTION LOURDE DES EQUATIONS DE MAXWELL. L'UTILISATION DES RESEAUX DE NEURONES ARTIFICIELS (RNA) NOUS A PERMIS DE REPONDRE A CES BESOINS. CETTE TECHNIQUE A ETE APPLIQUEE A L'ETUDE DES CIRCUITS PLANAIRES UTILISANT LA LIGNE MICRORUBAN, LES GUIDES D'ONDE COPLANAIRES AINSI QUE POUR L'ETUDE DES ANTENNES. LES RNA PRESENTENT L'AVANTAGE D'ETRE APPLICABLES QUELLE QUE SOIT LA COMPLEXITE DU PROBLEME. L'HYBRIDATION DES RNA AVEC LES FILTRES RECURSIFS NOUS A PERMIS D'ETABLIR UNE TECHNIQUE DE PARAMETRISATION APPLICABLE AU DOMAINE TEMPOREL. LA VALIDITE DE LA METHODE A ETE DEMONTREE POUR LA CARACTERISATION EM DES DISCONTINUITES PLANAIRES TELLES QUE LES SAUTS DE LARGUEUR OU LES FILTRES PASSE BANDE REALISES EN MICRORUBAN. LA METHODE DE DECOMPOSITION MODALE ET LA PARAMETRISATION DES MODES PAR LES POLYNOMES DE TAYLOR A ETE UTILISEE POUR PARAMETRER LES REPONSES FREQUENTIELLES DES STRUCTURES MICRO-ONDES. CETTE TECHNIQUE PERMET DE CALCULER RAPIDEMENT LES MODES A CHAQUE VARIATION DES PARAMETRES GEOMETRIQUES DE LA STRUCTURE EN UTILISANT UNE TECHNIQUE DE DERIVATION AUTOMATIQUE. LA DECOMPOSITION MODALE EXPLOITE ENSUITE CES MODES AFIN DE CONSTRUIRE UN MODELE ANALYTIQUE CARACTERISANT AVEC PRECISION LES PARAMETRES DE REPARTITION ET LES MATRICES IMPEDANCE. CETTE TECHNIQUE PERMET AUSSI D'ETABLIR LES DIAGRAMMES DES MODES QUI PEUVENT ETRE UTILISES AFIN D'IDENTIFIER LES MODES PREDOMINANTS.
Book Synopsis APPLICATION DU FORMALISME DE LA FONCTION DE DESCRIPTION A LA MODELISATION NON-LINEAIRE D'UN TRANSISTOR BIPOLAIRE MICROONDE DE PUISSANCE by : Jean-Claude Giraudon
Download or read book APPLICATION DU FORMALISME DE LA FONCTION DE DESCRIPTION A LA MODELISATION NON-LINEAIRE D'UN TRANSISTOR BIPOLAIRE MICROONDE DE PUISSANCE written by Jean-Claude Giraudon and published by . This book was released on 1986 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE TRAVAIL DANS CETTE ETUDE CONSISTE EN LA MISE EN PLACE DES OUTILS NECESSAIRES A L'OPTIMISATION ET A LA MESURE DES CIRCUITS NON-LINEAIRES A TRANSISTORS BIPOLAIRES. A PARTIR DU MODELE TEMPOREL THEORIQUE DE TRANSISTOR, ON A DETERMINE SON MODELE FREQUENTIEL, QUE NOUS AVONS UTILISE POUR CALCULER SES IMPEDANCES APPARENTES OPTIMALES DE CHARGES, DANS SON FONCTIONNEMENT EN AMPLIFICATEUR CLASSE C. D'AUTRE PART ON A PREPARE LES MESURES NECESSAIRES A LA MODELISATION D'UN TRANSISTOR BIPOLAIRE HYPERFREQUENCE DE PUISSANCE
Book Synopsis Simulation avancée des circuits micro-ondes by : Xiao Hui Zhang
Download or read book Simulation avancée des circuits micro-ondes written by Xiao Hui Zhang and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LES OBJECTIFS DE CETTE THESE SONT LES SUIVANTS: 1) REALISER UNE ETUDE THEORIQUE DE LA LIGNE DE TRANSMISSION AUX MULTICONDUCTEURS DANS LES MULTICOUCHES DIELECTRIQUES. SELON L'APPROXIMATION QUASI-TEM, UN SYSTEME D'EQUATIONS DIFFERENTIELLES EST FORMULE EN CONSTRUISANT UNE FONCTION DE GREEN DANS L'ESPACE EQUIVALENT HOMOGENE, ET EN LE CONSIDERANT COMME UN PROBLEME DE CHAMPS ELECTROSTATIQUES. LA METHODE DES MOMENTS EST UTILISEE POUR SA RESOLUTION. CE TRAVAIL A CONDUIT A UN NOUVEAU LOGICIEL D'AIDE A LA CONCEPTION MICROLINE. MICROLINE EST INTEGRE DANS LE PROGICIEL DE SIMULATION ET D'OPTIMISATION DES CIRCUITS MICRO-ONDES ESOPE, EN LUI DONNANT UN ATOUT SPECIAL POUR POUVOIR TRAITER DES MMICS; 2) REALISER UNE ETUDE DE SIMULATION DES RESEAUX ELECTRONIQUES NON LINEAIRES DANS LE DOMAINE TEMPO-FREQUENTIEL ET METTRE AU POINT UN ALGORITHME A LA FOIS EFFICACE ET ROBUSTE DU POINT DE VUE DU CALCUL NON LINEAIRE, ET ADAPTE AUX STRUCTURES D'UN SIMULATEUR DE CIRCUITS LINEAIRES EXISTANT, DANS LE BUT DE LE TRANSFORMER EN UN SIMULATEUR DE CIRCUITS MICRO-ONDES NON LINEAIRES. UNE NOUVELLE IMPLANTATION DE LA METHODE HARMONIC BALANCE EST PROPOSEE AINSI QU'UN NOUVEL ALGORITHME DE RESOLUTION BGSNL (BLOC GAUSS SEIDEL NEWTON LIKE) QUI A CONDUIT A LA REALISATION D'UN PROGICIEL INDUSTRIEL DE SIMULATION DE CIRCUITS MICRO-ONDES NON LINEAIRES ESOPE NON LINEAIRE
Book Synopsis Modélisation en bruit en régime non-linéaire de transistors micro-ondes by : Jean-Brice Juraver
Download or read book Modélisation en bruit en régime non-linéaire de transistors micro-ondes written by Jean-Brice Juraver and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 36 (thesis year 1991) a total of 11,024 thesis titles from 23 Canadian and 161 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 36 reports theses submitted in 1991, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Book Synopsis Masters Theses in the Pure and Applied Sciences by : W. H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Springer Science & Business Media. This book was released on 1993 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 36 reports (for thesis year 1991) a total of 11,024 thesis titles from 23 Canadian and 161 US universities. The organization of the volume, as in past years, consists of thesis titles arranged by discipline, and by university within each discipline. The titles are contributed by any and all a
Book Synopsis Avalanche Transit-time Devices by : George I. Haddad
Download or read book Avalanche Transit-time Devices written by George I. Haddad and published by Modern Frontiers in Applied Sc. This book was released on 1973 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Earthquake Early Warning Systems by : Paolo Gasparini
Download or read book Earthquake Early Warning Systems written by Paolo Gasparini and published by Springer Science & Business Media. This book was released on 2007-08-10 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides information on the major EEW systems in operation and on the state-of-the-art of the different blocks forming an EW system: the rapid detection and estimation of the earthquake’s focal parameters, the signal transmission, the engineering interface and the information reliability/false alarm problem. It is the first time that so many aspects of EEW systems have been specifically focused upon within a single book.
Book Synopsis Fabrication of GaAs Devices by : Albert G. Baca
Download or read book Fabrication of GaAs Devices written by Albert G. Baca and published by IET. This book was released on 2005-09 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides fundamental and practical information on all aspects of GaAs processing and gives pragmatic advice on cleaning and passivation, wet and dry etching and photolithography. Other topics covered include device performance for HBTs (Heterojunction Bipolar Transistors) and FETs (Field Effect Transistors), how these relate to processing choices, and special processing issues such as wet oxidation, which are especially important in optoelectronic devices. This book is suitable for both new and practising engineers.
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Sade H Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Sade H Shafer and published by Springer Science & Business Media. This book was released on 1995 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cited in Sheehy, Chen, and Hurt . Volume 38 (thesis year 1993) reports a total of 13,787 thesis titles from 22 Canadian and 164 US universities. As in previous volumes, thesis titles are arranged by discipline and by university within each discipline. Any accredited university or college with a grad
Book Synopsis Your Mindful Compass by : Andrea Maloney Schara
Download or read book Your Mindful Compass written by Andrea Maloney Schara and published by . This book was released on 2013-12-01 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Your Mindful Compass" takes us behind the emotional curtain to see the mechanisms regulating individuals in social systems. There is great comfort and wisdom in knowing we can increase our awareness to manage the swift and ancient mechanisms of social control. We can gain greater flexibility by seeing how social controls work in systems from ants to humans. To be less controlled by others, we learn how emotional systems influence our relationship-oriented brain. People want to know what goes on in families that give rise to amazing leaders and/or terrorists. For the first time in history we can understand the systems in which we live. The social sciences have been accumulating knowledge since the early fifties as to how we are regulated by others. S. Milgram, S. Ashe, P. Zimbardo and J. Calhoun, detail the vulnerability to being duped and deceived and the difficulty of cooperating when values differ. Murray Bowen, M.D., the first researcher to observe several live-in families, for up to three years, at the National Institute of Mental Health. Describing how family members overly influence one another and distribute stress unevenly, Bowen described both how symptoms and family leaders emerge in highly stressed families. Our brain is not organized to automatically perceive that each family has an emotional system, fine-tuned by evolution and "valuing" its survival as a whole, as much as the survival of any individual. It is easier to see this emotional system function in ants or mice but not in humans. The emotional system is organized to snooker us humans: encouraging us to take sides, run away from others, to pressure others, to get sick, to blame others, and to have great difficulty in seeing our part in problems. It is hard to see that we become anxious, stressed out and even that we are difficult to deal with. But "thinking systems" can open the doors of perception, allowing us to experience the world in a different way. This book offers both coaching ideas and stories from leaders as to strategies to break out from social control by de-triangling, using paradoxes, reversals and other types of interruptions of highly linked emotional processes. Time is needed to think clearly about the automatic nature of the two against one triangle. Time and experience is required as we learn strategies to put two people together and get self outside the control of the system. In addition, it takes time to clarify and define one's principles, to know what "I" will or will not do and to be able to take a stand with others with whom we are very involved. The good news is that systems' thinking is possible for anyone. It is always possible for an individual to understand feelings and to integrate them with their more rational brains. In so doing, an individual increases his or her ability to communicate despite misunderstandings or even rejection from important others. The effort involved in creating your Mindful Compass enables us to perceive the relationship system without experiencing it's threats. The four points on the Mindful Compass are: 1) Action for Self, 2) Resistance to Forward Progress, 3) Knowledge of Social Systems and the 4) The Ability to Stand Alone. Each gives us a view of the process one enters when making an effort to define a self and build an emotional backbone. It is not easy to find our way through the social jungle. The ability to know emotional systems well enough to take a position for self and to become more differentiated is part of the natural way humans cope with pressure. Now people can use available knowledge to build an emotional backbone, by thoughtfully altering their part in the relationship system. No one knows how far one can go by making an effort to be more of a self-defined individual in relationships to others. Through increasing emotional maturity, we can find greater individual freedom at the same time that we increase our ability to cooperate and to be close to others.
