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Rozprawy doktorskie na temat „Planer filter”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Basti, Ahmed. "Développement de méthodes de synthèse pour la conception de filtres hyperfréquences compacts et optimisés en pertes." Thesis, Limoges, 2014. http://www.theses.fr/2014LIMO0023/document.

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Pour les systèmes de communication par satellite, des filtres avec de très bonnes performances électriques sont indispensables afin de rejeter les signaux indésirables dans de nombreuses parties de la chaîne de communication. Les technologies fort-Q peuvent répondre à cette exigence mais elles conduisent souvent à des dispositifs encombrants. D'autre part, les technologies compactes faible-Q souffrent généralement d'une dégradation des performances électriques en termes de pertes d'insertion, de sélectivité et de platitude. Pour répondre à une demande croissante concernant la réduction de la t

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2

Liu, Zenghai. "Interferometric filter planar Doppler velocimetry." Thesis, Cranfield University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539402.

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This thesis describes the development of a Mach-Zehnder interferometric filter based planar Doppler velocimetry (MZI-PDV) flow measurement technique. The technique uses an entirely new optical system, an unbalanced MZI incorporating glass blocks for wavefront-matching, to replace the iodine cell currently used in conventional PDV. The free spectral range of the interferometric filter can be selected by adjusting the optical path difference of the MZI. This allows the velocity measurement range, sensitivity and resolution to be varied. This system offers no restricts to the choice of laser wave

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3

Monroe, Janice. "Quasi-Planar microwave filter designs." Thesis, Queensland University of Technology, 1995. https://eprints.qut.edu.au/226911/1/T%28BE%26E%29%201026_Monroe_1995.pdf.

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The designs of two types of quasi-planar microwave bandpass filters, an asymmetric parallel-coupled filter and a pseudo-coaxial line (PCL) filter, are presented. Both filters are synthesized using the approximate insertion loss method. The asymmetric parallel-coupled filter is a modification of the traditional symmetric parallel-coupled filter. A simple and novel method is presented for removal of the step-junction discontinuities which are inherent in the traditional design and are sources of possible excitations of leaky waves and higher order modes which may cause deterioration in f

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4

El, Mostrah Abbas. "Étude de filtres semi-volumiques pour les charges utiles flexibles des futurs satellites de télécommunications." Brest, 2011. http://www.theses.fr/2011BRES2062.

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Malgré les nombreux services (téléphonie, multimédia,. . . ) offerts par les satellites de télécommunication, les utilisateurs ne se contentent plus de ces services traditionnels et sont en permanence demandeurs de services de qualité répondant à leurs attentes. Il n’est donc pas étonnant qu’apparaisse le besoin de flexibilité au niveau de la charge utile pour permettre au satellite de suivre en vol l’évolution des services. Ce travail de thèse avait pour objet d’étudier l’impact des besoins de flexibilité sur les fonctions de filtrage de la charge utile du satellite. En effet, ce nouveau beso

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5

Sence, Johann. "Contribution au co-design et à la co-intégration de réseaux d’antennes actives multi-bandes pour systèmes de radionavigation par satellite." Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0087.

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Ce travail de thèse s’inscrit dans le contexte actuel d’une très forte augmentation de la densité d’intégration des systèmes électroniques pour les équipements de communications, de localisation ou de surveillance. Le déploiement de ces systèmes doit aussi répondre à une demande croissante de flexibilité en termes de fréquences, de puissance ou de couverture. La flexibilité en fréquence peut être simultanée avec des dispositifs multi-bandes ou sélective par reconfiguration de la bande de fréquence. La flexibilité en puissance permet de minimiser la consommation du système et la flexibilité de

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6

Lu, Zenghai. "Interferometric filter-based planar Doppler velocimetry." Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/7151.

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This thesis describes the development of a Mach-Zehnder interferometric filter based planar Doppler velocimetry (MZI-PDV) flow measurement technique. The technique uses an entirely new optical system, an unbalanced MZI incorporating glass blocks for wavefront-matching, to replace the iodine cell currently used in conventional PDV. The free spectral range of the interferometric filter can be selected by adjusting the optical path difference of the MZI. This allows the velocity measurement range, sensitivity and resolution to be varied. This system offers no restricts to the choice of laser wave

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7

McGee, Jonathan Adam. "Monolithic in-plane tunable optical filter." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8566.

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Thesis (M.S.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Electrical and Computer Engineering . Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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8

Forslund, Ola. "Scattering and propagation of electromagnetic waves in planar and curved periodic structures - applications to plane wave filters, plane wave absorbers and impedance surfaces." Doctoral thesis, KTH, Alfvén Laboratory, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3825.

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<p>The subject of this thesis is scattering of electromagneticwaves from planar and curved periodic structures. The problemspresented are solved in the frequency domain.</p><p>Scattering from planar structures with two-dimensionalperiodic dependence of constitutive parameters is treated. Theconstitutive parameters are assumed to vary continuously orstepwise in a cross section of a periodically repeating cell.The variation along a longitudinal coordinate z is arbitrary. Ageneral skew lattice is assumed. In the numerical examples, lowloss and high loss dielectric materials are considered. Thepro

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9

Goussetis, George. "Waveguide bandpass filters with improved performance." Thesis, University of Westminster, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251653.

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10

Terry-Wood, S. "Miniature YBCO/MgO planar superconducting filter, oscillator and delayline structures." Thesis, University of Portsmouth, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574455.

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The design of practical high performance radio frequency and microwave frequency circuits employing high transition temperature superconductors is presented. High quality factor resonators and very low insertion loss bandpass filters constructed using the high temperature superconductor YBCO with a transition temperature of 87 Kelvin are described. These very high quality factor energy-trapping shielded microstrip cavity structures employed a very low loss MgO dielectric substrate with YBCO superconducting ground plane, strip plane, shield plane and normal metal end walls. This structure was a

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11

Lopez-Villarroya, Raul. "E-plane parallel coupled resonators for waveguide bandpass filter applications." Thesis, Heriot-Watt University, 2012. http://hdl.handle.net/10399/2604.

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High skirt selectivity and extended out-of-band rejection is a major challenge for the successful progress of in-line microwave filters. This thesis presents novel filter realizations with improved performance, compatible with the standard single thin all-metal insert in a split-block housing and therefore maintaining the low-cost fabrication characteristics. In addition, significant filter performance improvement is achieved. The synthesis procedure implemented for the filter concept consists of a few steps. Some preliminary steps are a rigorous characterization of a double-ridge coaxial wave

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12

Kelly, James. "Planar microwave filters with reconfigurable or enhanced characteristics." Thesis, Loughborough University, 2006. https://dspace.lboro.ac.uk/2134/12081.

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This thesis presents two frequency switchable micro strip line filters. It also presents a third filter that has the potential for frequency and bandwidth reconfiguration. All of these filters are reconfigured using an optically activated silicon switch. This method of tuning is very simple, cheap, and effective. Three new, fixed frequency, filters were also developed as a bi-product of the research presented in this thesis. These filters are smaller than their predecessors, or conventional counterparts. Two Metallodielectric Electromagnetic BandGap (MEBG) low-pass filters, number amongst the

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13

Beukman, Theunis Steyn. "Tune-all wideband planar filters for KAT-7." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17791.

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Thesis (MScEng)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: A new type of wideband lters, with tunability in both the centre frequency and bandwidth, is presented in this thesis. These lters are based on perturbed ring-resonators in cascade, while varactor diodes are used for electronic tuning. The Karoo Array Telescope (KAT-7) requires a front-end lter that has the ability for ne-tuning the response after fabrication, in order to obtain the designed ltering response. Not only are tune-all characteristics required, but also wide bandwidth, at passband, high selectivity and

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14

Akra, Mirna. "Etude de filtres RF planaires miniatures. Amélioration de la réjection hors-bande et accordabilité." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT024/document.

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Le but de ce travail était de développer des filtres passe-bande RF dans la technologie de PCB, avec trois objectifs principaux. Le premier objectif était de développer des formules de synthèse tosimplify la procédure de conception du filtre. Le deuxième était de parvenir à un rejet wideout bande sans modifier les caractéristiques de la bande de filtrage. Le troisième objectif est de contrôler la fréquence centrale du filtre en utilisant diode varicap<br>The purpose of this work was to develop RF bandpass filters in PCB technology,with three main objectives. The first objective was to develop

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15

Ramirez, Daniel Alex. "Tunable Combline Filter and Balun: Design, Simulation, and Test." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6629.

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Reconfigurable filters are an attractive solution for many military and commercial applications due to their ability to alter the partitioned frequency band in an RF system without requiring a bank of fixed filters. The onset of this technology has the potential to revolutionize the RF industry by allowing for agile devices which consume less size, weight, and power while providing greater performance. However, at the present state, reconfigurable filters present a reduction in performance when compared to filter banks. This has led to exciting research in the field of RF tunable filters. For

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16

Farouk, Mohamed Ismail. "Design of hydraulic structures with plane intermediate filters." Thesis, University of Manchester, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.510438.

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Hydraulic structures should be secured against uplift pressure and piping. Design engineers, therefore, may provide these structures with different features such as intermediate filters to establish safer and/or more economic structures. One or more intermediate filters can be built within the floor. In this research, the problem of seepage flow beneath hydraulic structures with two plane intermediate filters over a homogenous soil has been deduced analytically using the conformal mapping technique. The solutions include the potential heads at both key and stagnation points, the hydraulic exit

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17

Lacorte, Caniato Serrano Ariana Maria da Conceição. "Synthesis and design of tunable microwave bandpass filters using planar patch resonators." Thesis, Grenoble, 2011. http://www.theses.fr/2011GRENT029/document.

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L'objectif de la thèse était la conception et la synthèse de filtres RF passe-bande reconfigurables, basés sur des résonateurs de type “Patch”. Une méthode de conception dédiée à la synthèse des filtres reconfigurables a été développée et appliquée à deux filtres reconfigurables basés sur des « patchs » triangulaire et circulaire. La technique de synthèse repose sur l'analyse de la matrice de couplage, facilitée par une analyse électromagnétique des modes propres des résonateurs « Patch ». Les filtres reconfigurables ont été conçus et optimisés à l'aide de simulations électromagnétiques 3D en

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18

Nepaya, Leokadia Ndeapo Popyeni. "Practical realisation of multiband planar filters on multilayer substrates." Doctoral thesis, Faculty of Engineering and the Built Environment, 2019. http://hdl.handle.net/11427/30347.

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This research presents the design of planar microwave filters implemented on microstrip multi-layer technology. These should be able to attain and realize specified essential requirements such as multi-band operation, compact size, and without significant deteriorated filter performance in comparison with single-band filters. The focus is placed on new synthesis and design procedures for multiband responses. In some cases, the possibility to include re-configurable characteristics of these filters is required. The focus of the research is entirely on examining the properties and implications o

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19

Rabbi, Khondker M. F. "Miniaturised and reconfigurable planar filters for ultra-wideband applications." Thesis, University of Westminster, 2014. https://westminsterresearch.westminster.ac.uk/item/8yv57/miniaturised-and-reconfigurable-planar-filters-for-ultra-wideband-applications.

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An increasing demand for electromagnetic spectrum has resulted from the emergence of feature-rich and faster throughputs wireless applications. This necessitates the developments of dynamic reconfigurable or multifunctional systems to better exploit the existing spectrum. Future wireless devices will be expected to communicate over several bands with various other devices in order to fine tune the services they provide to the user. Each band may require a separate RF transceiver and such modern wireless multi-band multi-mode communication systems call for high performance, highly integrated co

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20

Huang, Joseph C. (Joseph Chow) 1977. "Fabrication of a planar optical add/drop channel filter in silicon oxynitride." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/87205.

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21

Hrubý, Lukáš. "Napájecí zdroj pro vesmírné aplikace." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377071.

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The following work deals with a design of switched mode power supply. In this essay, there is detailed description of non-isolated and isolated topologies of SMPS, used in industry. Next, there are calculations for design and analysis which are needed for space design. There will also be selected devices, which could be used in final device. Based on experience and ECSS requirements, there will be chosen parameters of SMPS, which could be then used as a module for future space design. Chosen topology of SMPS will be created as engineering model assembled with commercial components. One part of

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22

Chénier, Mario. "Power handling capabilities on E-plane metal-insert filters." Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5450.

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23

Gehlhaar, Robert. "Terahertz oscillation and stimulated emission from planar microcavities." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2007. http://nbn-resolving.de/urn:nbn:de:swb:14-1184931926949-93266.

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In the past decades, the miniaturization in optics led to new devices with structural sizes in the range of the light wavelength, where the photonic modes are con- fined and the number of states is limited. In the smallest microcavities, i.e. micrometer sized optical resonators, the propagation of only one mode is permitted that is simultaneously amplified internally. This particularly strong enhancement of the electric field is directly related to the quality factor of the cavity. By introducing an optical dipole into a high-Q microcavity, the spontaneous emission is amplified at the cavity m

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24

Tang, Wenxing. "Planar microwave filters with electronically tunability and other novel configurations." Thesis, Heriot-Watt University, 2011. http://hdl.handle.net/10399/2445.

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In order to meet the increasing demands of advance wireless communications and radar systems, several novel types of bandpass filters and bandstop filters have been developed in this thesis. A new type of varactor-tuned dual-mode bandpass filters have been presented to achieve a nearly constant absolute bandwidth over a wide tuning range by using a single DC bias circuit. Since the two operating modes (i.e., the odd and even modes) in a dualmode microstrip open-loop resonator do not couple to each other, tuning the passband frequency is accomplished by merely changing the two modal frequencies

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25

Eleuterio, Filho Sebastião. "Magnetron Sputtering planar construção e aplicação." [s.n.], 1991. http://repositorio.unicamp.br/jspui/handle/REPOSIP/277105.

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Orientador: Sergio Artur Bianchini Bilac<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb Wataghin<br>Made available in DSpace on 2018-07-14T00:34:53Z (GMT). No. of bitstreams: 1 EleuterioFilho_Sebastiao_M.pdf: 3937274 bytes, checksum: 3a5a8e1cc4df74ca5071ce507ea876fa (MD5) Previous issue date: 1991<br>Resumo: A técnica de deposição de filmes magnetron sputtering apresenta muitas vantagens em relação à outros métodos, como por exemplo, a simplicidade do equipamento, o baixo custo de manutenção, fácil manuseio e, a possibilidade de obtenção de altas taxa

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Kotani, Daisuke. "Stability and Robustness of Control Planes in OpenFlow Networks." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215674.

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Chapter 4 of this thesis is a minor revision of the work published in "Daisuke Kotani and Yasuo Okabe, Fast Failure Detection of OpenFlow Channels, The 11th Asian Internet Engineering Conference (AINTEC 2015), pp.32-39, November 2015. http://dx.doi.org/10.1145/2837030.2837035" © ACM 2015.<br>Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(情報学)<br>甲第19847号<br>情博第598号<br>新制||情||104(附属図書館)<br>32883<br>京都大学大学院情報学研究科知能情報学専攻<br>(主査)教授岡部寿男, 教授美濃導彦, 教授喜多一<br>学位規則第4条第1項該当

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27

Zayniyev, Damir. "Development of planar filters and diplexers for wireless transceiver front ends." Thesis, University of Westminster, 2010. https://westminsterresearch.westminster.ac.uk/item/908q7/development-of-planar-filters-and-diplexers-for-wireless-transceiver-front-ends.

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The central theme of this work is the design of compact microstrip bandpass filters and diplexers and the investigation of applications of these circuits in integrated transceiver RF front-end. The core of this thesis therefore presents the following stages of the work: - Analysis of coupled pseudo-interdigital resonators and lines; formulation of approximate transmission zero conditions and the investigation of coupling between these two resonators and related structures. - Development of compact, low loss and high selectivity microstrip pseudointerdigital bandpass filters. The design procedu

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28

Tan, Wenhua. "Modélisation et Conception des Composants Passifs Planar pour Filtres CEM." Phd thesis, Ecole Centrale de Lille, 2012. http://tel.archives-ouvertes.fr/tel-00776515.

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Les composants magnétiques en technologie planar répondent aux exigences actuelles de l'Electronique de Puissance (EP), à savoir la montée en fréquence de commutation des structures d'EP et la réduction du volume des convertisseurs. La première tendance impose des contraintes fortes en termes de compatibilité électromagnétique (CEM) des équipements. Ces dernières doivent être prises en compte par les ingénieurs dès la phase conception des convertisseurs en se basant sur des modèles fiables, peu développés pour les composants planar dans la littérature scientifique. Ce travail de thèse porte ai

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29

Kufa, Martin. "Planární fraktální filtr na substrátu s porušenou zemí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219832.

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The diploma thesis is focused on the design of planar filters combining fractal layouts and defected ground substrates. The diploma thesis can be divided into three main parts. First, basic knowledge about fractals is presented (creation of Minkowski Island and Koch loop, e.g.). Then, the principle of defected ground structure is described, and a combination of fractal motives with a defected ground structure is briefly introduced. Properties of investigated structures are verified by CST Microwave Studio and Ansoft HFSS. Second, different defected ground structures under the 50 transmission

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30

Conceicao, lacorte c. serrano Ariana maria. "Synthesis and design of tunable microwave bandpass filters using planar patch resonators." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00648414.

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L'objectif de la thèse était la conception et la synthèse de filtres RF passe-bande reconfigurables, basés sur des résonateurs de type "Patch". Une méthode de conception dédiée à la synthèse des filtres reconfigurables a été développée et appliquée à deux filtres reconfigurables basés sur des " patchs " triangulaire et circulaire. La technique de synthèse repose sur l'analyse de la matrice de couplage, facilitée par une analyse électromagnétique des modes propres des résonateurs " Patch ". Les filtres reconfigurables ont été conçus et optimisés à l'aide de simulations électromagnétiques 3D en

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31

Sedlák, Milan. "Anténní předzesilovač pro měření EMI." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376954.

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The master thesis deals with the design of a low noise preamplifier operating in the frequency range from 30 MHz to 1 GHz, usable for measuring and testing of electromagnetic interference in the electromagnetic compatibility test rooms. The introductory, theoretical, part is focused on the analysis and description of the necessary properties of the low noise preamplifier required for the subsequent design. The practical part deals with the selection of suitable components, simulation, design and subsequent realization of low noise preamplifier. At the end of the thesis the design and the final

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32

Mathema, Najma. "Predicting Plans and Actions in Two-Player Repeated Games." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8683.

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Artificial intelligence (AI) agents will need to interact with both other AI agents and humans. One way to enable effective interaction is to create models of associates to help to predict the modeled agents' actions, plans, and intentions. If AI agents are able to predict what other agents in their environment will be doing in the future and can understand the intentions of these other agents, the AI agents can use these predictions in their planning, decision-making and assessing their own potential. Prior work [13, 14] introduced the S# algorithm, which is designed as a robust algorithm for

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33

Dharmalingam, Arun Prakash [Verfasser], and Robert [Gutachter] Weigel. "Planar Inductors for Microwave Acoustic Filter Integration in LTCC Technology / Arun Prakash Dharmalingam ; Gutachter: Robert Weigel." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2016. http://d-nb.info/1124233997/34.

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Ruffio, Jean-Baptiste, Bruce Macintosh, Jason J. Wang, et al. "Improving and Assessing Planet Sensitivity of the GPI Exoplanet Survey with a Forward Model Matched Filter." IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/624437.

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We present a new matched-filter algorithm for direct detection of point sources in the immediate vicinity of bright stars. The stellar point-spread function (PSF) is first subtracted using a Karhunen-Love image processing (KLIP) algorithm with angular and spectral differential imaging (ADI and SDI). The KLIP-induced distortion of the astrophysical signal is included in the matched-filter template by computing a forward model of the PSF at every position in the image. To optimize the performance of the algorithm, we conduct extensive planet injection and recovery tests and tune the exoplanet sp

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35

Daveau, Guillaume. "Filtres passifs hybrides dédiés aux applications de puissance." Montpellier 2, 2008. http://www.theses.fr/2008MON20062.

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La majeure partie de ce travail de recherche porte sur la définition, l'analyse, la modélisation, le dimensionnement, l'optimisation et la réalisation de structures de filtres passifs originales dédiées à l'électronique de puissance. Le premier chapitre présente les composant passifs hybrides et des enjeux liés à l'intégration des composants passifs dans le domaine de l'électronique de puissance. Dans le second chapitre, différentes structures de filtrage sont étudiées : des structures de filtres mode commun et mode différentiel intégrés, des structures à base de lignes de transmission homogèn

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36

Watson, Alexander M. "Fabrication of Micropolarizer and Narrow Band-Pass Pixel Filters for Focal Plane Array." University of Dayton / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1324658152.

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Kanduri, Srinivasa Rangarajan Mukhesh, and Vinay Kumar Reddy Medapati. "Evaluation of TDOA based Football Player’s Position Tracking Algorithm using Kalman Filter." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-16433.

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Time Difference Of Arrival (TDOA) based position tracking technique is one of the pinnacles of sports tracking technology. Using radio frequency com-munication, advanced filtering techniques and various computation methods, the position of a moving player in a virtually created sports arena can be iden-tified using MATLAB. It can also be related to player’s movement in real-time. For football in particular, this acts as a powerful tool for coaches to enhanceteam performance. Football clubs can use the player tracking data to boosttheir own team strengths and gain insight into their competing t

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Hunter, Robert Peter. "Development of Transparent Soil Testing using Planar Laser Induced Fluorescence in the Study of Internal Erosion of Filters in Embankment Dams." Thesis, University of Canterbury. Geological Sciences, 2012. http://hdl.handle.net/10092/7323.

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A new ‘transparent soil permeameter’ has been developed to study the mechanisms occurring during internal erosion in filter materials for embankment dams. Internal erosion or suffusion is the process where fine particles are removed from a matrix of coarse grains by seepage of water, and which ultimately leads to instabilities within the soil. The laboratory-based experiments in this thesis utilises a novel approach where up-scaled glass particles are used in place of soil particles, and optically matched oil is used in place of water. Rhodamine dye in the oil allows the fluid to fluoresce bri

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Zhao, Lingyin. "Generalized Frequency Plane Model of Integrated Electromagnetic Power Passives." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/27692.

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The challenge to put power electronics on the same cost reduction spiral as integrated signal electronics has yet to be met. In the ongoing work for achieving complete power electronic converter integration, it has proven to be essential to develop a technology for integration of electromagnetic power passives. This integration will enable the incorporation of resonant circuits, transformers, EMI filters and the like into the integrated power electronics modules. These integrated electromagnetic power passives have been realized in terms of distributed structures, utilizing magnetic layers, co

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Birrien, Florent. "Assimilation de données et inversion bathymétrique pour la modélisation de l'évolution des plages sableuses." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-00870775.

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Cette thèse présente une plateforme d'assimilation de données issues de l'imagerie vidéo et intégrée au modèle numérique d'évolution de profil de plage 1DBEACH. Le manque de jeux de données bathymétriques haute-fréquence est un des problèmes récurrents pour la modélisation morphodynamique littorale. Pourtant, des relevés topographiques réguliers sont nécessaires non seulement pour la validation de nos modèles hydro-sédimentaires mais aussi dans une perspective de prévision d'évolution morphologique de nos plages sableuses et d'évolution de la dynamique des courants de baïnes en temps réel. Les

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Kondapalli, Soumya. "Digital Systolic Architectures for UWB Beamforming using 2-D IIR Spatio-temporal Frequency-planar Beam Filters." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1376925582.

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Shin, Yih-shiuan, and 辛易軒. "Study on the Method of Planer Band-Pass Filter." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/66847642200193113393.

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碩士<br>華梵大學<br>電子工程學系碩士班<br>98<br>Laws'adoption are mainly engaged in research and development of an efficient design of the filter method, the already comprehensive filter equivalent circuit design coupling coefficient matrix, nearly equivalent circuit of South to detect a frequency response of the actual filter. In this method, the adjustment of the first to use the step by step disconnexion adjustment method in half-wave analysis software (AWR(10G)) in the various dimensions of adjustment of the filter, adjustment and simulation results indicate that this method can easily and efficiently tr

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Chen, Jen-ruei, and 陳禎瑞. "The optical layer thickness effect of planer waveguide filter with Bragg grating." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/6tyrwf.

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碩士<br>國立虎尾科技大學<br>機械與機電工程研究所<br>97<br>This thesis is to study the effect of the thickness of the guiding layer on the planar waveguide. In this thesis, a procedure for fabricating a high aspect ratio periodic structure on a UV polymer at submicron order using holographic interferometry and molding processes is described. First, holographic interferometry using a laser was used to create the master of the periode line structure on an i-line sub-micron positive photoresist film. Final line pattern on a UV polymer was formed from casting against the master mold. Finally, a different thickness o

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Tsai, Pei-Hsuan, and 蔡沛軒. "Planar Quasi-interdigital Cross-coupled Filter." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/17749565822209439031.

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碩士<br>國立交通大學<br>電信工程系<br>88<br>In this report, miniature bandpass filters with planar structure and low dielectric constant subtrate are constructed by using a simple and time-saving method. This kind of filters are suitable for the usage in Hyper LAN 5.3GHz and WLAN 5.7GHz. A trisection and a coupled quadruplet bandpass filters, exhibiting electric or magnetic cross coupling, with generalized Chebyshev function response are introduced. Furthermore, design procedures and equations of both types of filters are developed. Two filter designs of this type are described to verify the

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Yan, Yu-Meng, and 嚴育盟. "Planar Band-Pass Filters." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/09739513611896700460.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>90<br>Filter is an essential component in communication system. It is always implemented by distributed elements at micro- and millimeter- wave frequencies, and distributed elements are usually made by microstrip-line and coplanar-waveguide because of their planar characteristics which make them easy to connect with other circuit components. In this study, various microstrip and coplanar-waveguide filters will be implemented, together with the designs in accordance with their features. The conventional quarter-wavelength edge-coupled filter will be modif

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Zhang, Rui. "Novel Planar Microstrip and Dielectric Resonator Filters." Thesis, 2007. http://hdl.handle.net/10012/2753.

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Microwave filters possessing various forms are essential components in radar, satellite, and mobile communication systems. Increased demands for low-loss, miniature filters that can be mass produced at low cost have provided a significant challenge reinforcing the need for improving or even replacing the conventional microwave filters. In recent years, the concept of Photonic/Electromagnetic Bandgap (PBG/EBG) structures has attracted the attention of the microwave engineering community. The main feature of PBG/EBG structures is the existence of a bandgap in the frequency spectrum of a propag

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WANG, SHAW-CHYAU, and 王紹樵. "Studies of planar dual-mode bandpass filter." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/11782273425654230396.

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碩士<br>國立高雄師範大學<br>物理學系<br>94<br>Changing the position and size etched in the planar dual-mode band- pass filter can influent characteristics of filter included the resonant frequency﹑the insertion loss、the return loss and the 3dB bandwidth. The primary design process about this topic is demonstrated. The proposed bandpass filter are simulated on FR4 ( =4.4 ) substrate for microwave frequency by the IE3D microwave simulation software. Each pattern is connected with two 50Ω microstrip line, one for input and the other for output. Two 50Ω microstrip line are connected t

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Packiaraj, D. "Analysis of Multi-Conductor Coupled Microstrip Lines with an Aperture in the Ground Plane for Compact Broadband Microwave Components." Thesis, 2013. http://etd.iisc.ac.in/handle/2005/3374.

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In recent years, the wireless industry has witnessed tremendous development for the defense and commercial segments. The explosive growth in the modern radio frequency and microwave systems leads to an increased interest in the research of miniaturized microwave circuits with superior performance. Broadband components, in particular band pass filters (BPFs) and couplers are some of the widely used components in the modern communication systems, software defined radios, cognitive radios, imaging systems and positioning radars. In order to meet these requirements, the use of innovative geometrie

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Packiaraj, D. "Analysis of Multi-Conductor Coupled Microstrip Lines with an Aperture in the Ground Plane for Compact Broadband Microwave Components." Thesis, 2013. http://etd.iisc.ernet.in/2005/3374.

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In recent years, the wireless industry has witnessed tremendous development for the defense and commercial segments. The explosive growth in the modern radio frequency and microwave systems leads to an increased interest in the research of miniaturized microwave circuits with superior performance. Broadband components, in particular band pass filters (BPFs) and couplers are some of the widely used components in the modern communication systems, software defined radios, cognitive radios, imaging systems and positioning radars. In order to meet these requirements, the use of innovative geometrie

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Tsai, Tze-Hsun, and 蔡子珣. "The Study of Ultra-Wideband Planar Microwave Filter." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/32919129820425387425.

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碩士<br>中原大學<br>電子工程研究所<br>99<br>In this thesis, we design a planar UWB filter then fabricate it on a Roger4003 substrate which is 20mm × 13.03mm. The filter consists of interdigital-coupled line and step-impedance resonators. The interdigital-coupled line provides the passband of UWB filter and the step-impedance resonators perform a pair of transmission zeros on two sides of passband so that the edge may be sharper than used to be. Besides, we have an additional device on the step-impedance resonators to suppress the spurious mode. The measurement result show that the passband is between 3.07

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