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Academic literature on the topic 'Filtres pour microondes – Conception'
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Journal articles on the topic "Filtres pour microondes – Conception"
Flanagan, K., P. Branchu, and M. C. Gromaire. "Les ouvrages de biorétention : synthèse des guides internationaux de conception et de mainte - nance des filtres plantés pour le traitement à la source des eaux de ruissellement urbaines." Techniques Sciences Méthodes, no. 12 (December 2017): 89–126. http://dx.doi.org/10.1051/tsm/201712089.
Full textDissertations / Theses on the topic "Filtres pour microondes – Conception"
Alkarmo, Ahmad. "Conception de filtres dissipatifs pour applicateurs microondes." Toulouse, INPT, 1997. http://www.theses.fr/1997INPT058H.
Full textDardillac, Sébastien. "Extension de la notion de compensation de pertes pour la conception de filtres actifs microondes en technologie intégrée." Limoges, 2005. http://www.theses.fr/2005LIMO0068.
Full textBergeras, François. "Etude de nouvelles structures de filtres actifs intégrées en Hyperfréquences." Limoges, 2010. http://aurore.unilim.fr/theses/nxfile/default/6ee5a185-b426-42c3-a315-9a707c01277d/blobholder:0/2010LIMO4048.pdf.
Full textThe aim of this work is to extend a specific synthesis method dedicated to the design of microwave integrated active bandpass filters for radar applications (2-20 GHz). Starting from the state of art of active filters which leads us to point out several topologies based on actively coupled passive resonators, we investigate the possibility of designing devices showing frequency tunability and high-order filtering functions. The results of this work lead us to design several prototypes in integrated technology (GaAs substrate) in which the first one achieves 19% of frequency tuning in X-band whereas the second one shows that high order filtering functions can be achieved by the use of a specific passive isolator. Finally, we develop in a last part an original topology that associates filtering, amplification and switching functions so as to design an active filter achieving both frequency tunability and bandwidth multiplexing. Based on a channelized architecture, this circuit operates a frequency selection over the 9-15 GHz bandwidth
Comte, Renaud. "Conception et optimisation par la méthode des éléments finis de filtres microondes à forts coefficients de surtension." Limoges, 1996. http://www.theses.fr/1996LIMO0047.
Full textFourn, Erwan. "Etude et conception de systèmes de communication adaptatifs à base de MEMS aux longueurs d'ondes millimétriques." Brest, 2004. http://www.theses.fr/2004BRES2024.
Full textThis research work was aimed at designing reconfigurable microwave components for telecommunication systems by using MEMS. Even though this technology has not yet reached its full development, it already provides devices with really good performances. The first step consisted in investigations about reconfigurable filters. We first designed a switchable filter based on classical topology. Then, we used an original topology termed Dual Behavior Resonator (DBR), to independently and simultaneously control the central frequency and the bandwidth of our filter. We developed a tunable DBR filter ans two switchable one. The performances of the last two filters were improved by associating specific filtering functions with them. Finally, we designed a polarisation diversity antenna. Such a device results from the association of a two slot antennas network with a branch-line hybrid coupler. A phase shift at the end of the coupler allows switching the right and left polarisations
Simon, Hervé. "Etude et conception de filtres actifs passe-tout large bande en micro-ondes. Applications aux générateurs vectoriels et modulateurs numériques linéaires." Brest, 2000. http://www.theses.fr/2000BRES2008.
Full textNigon, Frédéric. "Conception de circuits planaires microondes à modes de galerie des résonateurs diélectriques." Limoges, 1997. http://www.theses.fr/1997LIMO0011.
Full textSimeoni, Massimiliano. "Conception, réalisation et test de nouvelles topologies de résonateurs et filtres microondes." Limoges, 2002. http://www.theses.fr/2002LIMO0006.
Full textPassive microwave filters represent a vey important feature in many modern telecommunications systems. Size and loss reductions are the main goals to achieve and researchers around the world are looking for new structures to match these needs. The research work done and summarized in this thesis is to be insert in this context. Here we propose some new passive resonating and filtering structures showing reduced size and energy loss compared to the classic ones
Houndonougbo, Fiffamen Alphonsine. "Conception, réalisation, test et optimisation de filtres reconfigurables en fréquence intégrant de nouveaux matériaux ferroélectriques." Limoges, 2010. https://aurore.unilim.fr/theses/nxfile/default/e13e9767-8e0b-4889-8231-2d704147e6c2/blobholder:0/2010LIMO4068.pdf.
Full textThis thesis work discusses the design, manufacture, testing and optimization of a two-pole tunable band-pass filter, integrating new ferroelectric materials developed for a project of the National Agency for Research, ACOR2. In the first step, MIM (Metal-Insulator-Metal) capacitors, interdigitated capacitors and resonators were studied to assess the performance of materials and guide manufacturers to optimize the properties of the intended application. Then, the ferroelectric discrete capacitors were associated with microstrip resonators etched on alumina substrate to create two-pole tunable Bandpass Chebyshev filters of 6. 6 % fractional bandwidths. The filters tune from 380 MHz to 420 MHz (10 %) under a 1. 5 kV/mm electrical field. The insertion loss is -2. 9 dB at zero bias and the return loss was better than 11 dB at 420 MHz
Caenepeel, Matthias. "Techniques de modélisation pour une conception efficace de filtres passe-bande micro-ondes." Thesis, Université Côte d'Azur (ComUE), 2016. http://www.theses.fr/2016AZUR4052.
Full textThe design of microwave bandpass filter generally requires optimization or fine-tuning of the physical design parameters in order to meet the electrical specifications given by a frequency template. In this thesis we develop models to assist the designer in the time-efficient physical design of the distributed element microwave filters. The aim is to incorporate these models in different CAD methods. By a time-efficient design, we mean a design that requires a low number of EM simulations. The EM-simulations typically represent the most time-consuming step during the optimization process. We propose different modeling approaches for the frequency response behavior of the filter. The first approach models the coupling matrix as a function of the physical design parameters and the second approach models the scattering parameters, again as a function of the physical parameters. In the first part we focus on the extraction of the coupling matrix. We introduce a novel CAT technique based on an efficient estimation of the Jacobian of the function relating the design parameters to the coupling parameters. The estimation of the Jacobian uses adjoint sensitivity analysis, which drastically reduces the number of required EM-simulations. In the second part of the thesis we propose an alternative modeling approach which is based on the concept of a metamodel. The idea is that the metamodel is numerically much cheaper to evaluate than the original simulation model while keeping an acceptable accuracy. We apply these methods to several state of-the-art microstrip bandpass filters
Books on the topic "Filtres pour microondes – Conception"
Theory and Design of Microwave Filters (IEE Electromagnetic Waves Series). Institution of Electrical Engineers, 2001.
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