Relevant bibliographies by topics / Guide coplanaire

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Guide coplanaire'

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Published: 25 May 2024

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Journal articles on the topic "Guide coplanaire"

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Drissi, M’hamed, Victor Fouad Hanna, and Jacques Citerne. "Rayonnement parasite des terminaisons court-circuitées en ligne microfente et en guide d’onde coplanaire." Annales Des Télécommunications 44, no. 9-10 (September 1989): 543–48. http://dx.doi.org/10.1007/bf02995019.

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Aldeeb, Hassan, and T. S. Kalkur. "Tunable Coplanar Wave Guide Band Stop Filters." Integrated Ferroelectrics 141, no. 1 (January 2013): 105–11. http://dx.doi.org/10.1080/10584587.2013.780138.

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Oshiro, K., H. Mikami, S. Fujii, T. Tanaka, H. Fujimori, M. Matsuura, and S. Yamamoto. "Fabrication of circulator with coplanar wave guide structure." IEEE Transactions on Magnetics 41, no. 10 (October 2005): 3550–52. http://dx.doi.org/10.1109/tmag.2005.854729.

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4

Ramkiran, D. S., B. T. P. Madhav, Kankara Narasimha Reddy, Shaik Shabbeer, Priyanshi Jain, and Saggurthi Sowmya. "Coplanar Wave Guide Fed Dual Band Notched MIMO Antenna." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 4 (August 1, 2016): 1732. http://dx.doi.org/10.11591/ijece.v6i4.10571.

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A coplanar wave guide fed of semicircle monopole antenna is designed in this work to overcome polarization diversity mimo technique is implemented in this paper. The proposed antenna is designed to notch a particular band of frequencies in UWB range. The designed model is notching the first band from 2 to 5 GHz & the second band from 7 to 11 GHz. The proposed antenna has been fabricated on FR4 substrate with di electric constant 4.4 & tested for its reliability on ZNB20 vector network analyzer. The operating bands will come under WLAN, KU band, satellite communication applications. A peak realized gain of 4.3 dB with radiation efficiency 90% is attained at the operating bands of the designed antenna. At notch band significant gain reduction is observed from the current design. The antenna is showing omnidirectional radiation pattern in the pass band & disturbed radiation pattern in the notch band. Antenna is fabricated with dimensions of 40x68x1.6 mm & simulation works are carried with finite element method based HFSS tool.
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Ramkiran, D. S., B. T. P. Madhav, Kankara Narasimha Reddy, Shaik Shabbeer, Priyanshi Jain, and Saggurthi Sowmya. "Coplanar Wave Guide Fed Dual Band Notched MIMO Antenna." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 4 (August 1, 2016): 1732. http://dx.doi.org/10.11591/ijece.v6i4.pp1732-1741.

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A coplanar wave guide fed of semicircle monopole antenna is designed in this work to overcome polarization diversity mimo technique is implemented in this paper. The proposed antenna is designed to notch a particular band of frequencies in UWB range. The designed model is notching the first band from 2 to 5 GHz & the second band from 7 to 11 GHz. The proposed antenna has been fabricated on FR4 substrate with di electric constant 4.4 & tested for its reliability on ZNB20 vector network analyzer. The operating bands will come under WLAN, KU band, satellite communication applications. A peak realized gain of 4.3 dB with radiation efficiency 90% is attained at the operating bands of the designed antenna. At notch band significant gain reduction is observed from the current design. The antenna is showing omnidirectional radiation pattern in the pass band & disturbed radiation pattern in the notch band. Antenna is fabricated with dimensions of 40x68x1.6 mm & simulation works are carried with finite element method based HFSS tool.
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6

Sugadev, M., G. Naveen, B. Rajasekar, and G. Sashidhar Reddy. "Coplanar wave guide fed circular fractal antenna using wireless applications." World Review of Science, Technology and Sustainable Development 18, no. 1 (2022): 1. http://dx.doi.org/10.1504/wrstsd.2022.10042349.

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Rajasekar, B., G. Sashidhar Reddy, G. Naveen, and M. Sugadev. "Coplanar wave guide fed circular fractal antenna using wireless applications." World Review of Science, Technology and Sustainable Development 18, no. 1 (2022): 1. http://dx.doi.org/10.1504/wrstsd.2022.119297.

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Aoki, T., D. Watanabe, T. Daibou, Y. Ando, M. Oogane, and T. Miyazaki. "Fabrication of small ferromagnetic tunnel junction with coplanar wave guide." Journal of the Magnetics Society of Japan 31, no. 2 (2007): 94–97. http://dx.doi.org/10.3379/jmsjmag.31.94.

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9

Hong Wang, Jun, and Hui Zhang. "Velocity compensated coplanar wave guide bend for odd-mode suppression." Microwave and Optical Technology Letters 50, no. 5 (2008): 1201–4. http://dx.doi.org/10.1002/mop.23315.

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Zerrouk, Zohra, and Larbi Setti. "Wideband meta-material-inspired reconfigurable antenna using Infinity Split Ring Resonator." ITM Web of Conferences 48 (2022): 01003. http://dx.doi.org/10.1051/itmconf/20224801003.

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In this article, a reconfigurable antenna inspired by the broadband meta-material using the Infinity slotted ring resonator (I-SRR) is designed and computer-based for wireless communication. Antenna takes an infinitely split ring resonator as a radiator powered by a coplanare wave guide (CPW). The procedure for extracting parameters of the meta-material property of the I-SRR is discussed in detail, by which the existence of negative permeability and the new resonance frequencies are verified. The proposed antenna has advantages of simple design, miniaturisation that can be used for wireless mobile communication system.
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Dissertations / Theses on the topic "Guide coplanaire"

1

Gary, René. "Etude du contrôle optique de composants hyperfréquences en technologie guide d'onde coplanaire." Phd thesis, Grenoble INPG, 2006. http://tel.archives-ouvertes.fr/tel-00536087.

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L'étude du contrôle optique de composants hyperfréquences consiste en la compréhension et la simulation des phénomènes physiques mis en jeu, à savoir, l'injection optique et la propagation d'une onde hyperfréquence au sein de la charge photo-induite. L'objectif est d'obtenir une simulation complète. Ainsi la partie optique est résolue par un calcul semi-analytique tridimensionnel de l'injection optique pour obtenir la concentration de porteurs excédentaires dans le substrat. Ce calcul semi-analytique permet de plus la réalisation d'une étude de sensibilité par rapport aux paramètres physiques et géométriques du substrat et du faisceau laser. Dans un deuxième temps, cette charge photo-induite, déduite de la concentration, est modélisée sous un logiciel électromagnétique pour obtenir le comportement fréquentiel du composant contrôlé optiquement. Toutes ces simulations sont enfin comparées aux mesures pratiques réalisées sur des composants simples en technologie coplanaire.
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2

JAISSON, DENIS. "Le guide coplanaire asymetrique et ses applications dans les circuits integres microondes." Rennes, INSA, 1995. http://www.theses.fr/1996ISAR0002.

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La 1ere partie traite de la modelisation de l'acpw. A l'aide d'une transformation conforme, on compare son comportement dans une analyse approchee a ceux du microruban et du cpw. Une analyse plus precise est faite en se servant de la methode des elements finis. Le modele quasi-statique des lignes rectilignes est generalise aux lignes courbes. Un programme d'elements finis est modifie pour resoudre des problemes a symetrie de revolution. Acpw courbes et rectilignes sont experimentes. Le comportement dispersif de l'acpw est compare a celui du microruban et du cpw, a l'aide d'une methode spectrale dynamique. Avec quelques exemples on montre dans la 2eme partie que l'acpw peut faciliter l'integration de fonctions hyperfrequences. Deux transitions entre la ligne microruban et l'acpw, et une transition entre le cpw et l'acpw sont decrites. Un melangeur coplanaire est concu et integre dans le premier etage d'un analyseur de spectre. On presente un diviseur de puissance de wilkinson coplanaire. Un coupleur microruban-acpw est modelise et implante dans un attenuateur variable adapte
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Belguessoum, Ahmed. "Conception et réalisation d'une antenne multibandes alimentée par un guide d'onde coplanaire CPW." Thesis, University of Ottawa (Canada), 2008. http://hdl.handle.net/10393/27956.

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For application in wireless communication devices such as laptops, tablet computers, personal digital assistants (PDAs), and so on, a narrow width internal antenna is very attractive since it has the potential to fit into narrow spaces within the device, such as the space between the display and housing. Recently, great advances have been made in wireless local area network (WLAN) communications, and in order to satisfy WLAN standards, many wireless communication devices are now designed to be capable to operate in dual-frequencies mode. For this reason, dual-band antennas for WLAN operation are in demand accordingly. Dual-frequency of coplanar waveguide (CPW) fed microstrip patch antennas is presented in this thesis. For excitation of the proposed antennas, the capacitively coupled CPW-fed structures are proposed. One of the most promising aspects of the new antenna consists in the capability of matching the input impedance at two frequencies with a single feed point. For dual-frequency operation, the proposed designs are obtained by loading one narrow slot in the rectangular patch. An extended tunable frequency ratio range of the two operating frequencies can be obtained by varying the widths or positions of the loaded slots. In addition, experimental results for the proposed structures are presented and discussed.
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Louazani, Hichem. "Modélisation des milieux dispersifs par la méthode TLM : application : étude du guide coplanaire à Ferrite." Grenoble INPG, 2004. http://www.theses.fr/2004INPG0055.

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L'évolution des systèmes de communication fait chaque année des progrès considérables et demeure un fort secteur du développement de l'industrie microélectronique. Les futurs développements exigent et impliquent l'intégration des dispositifs hyperfréquences et plus particulièrement des composants passifs non réciproques (isolateurs, circulateurs, modulateurs à ferrite). Les structures planaires sont les plus réputées et utilisées grâce à leur configuration simple. En effet, elles permettent la connexion en surface sans " via ". L'obtention des effets non réciproques sur une ligne coplanaire, sur laquelle est déposé un matériau à ferrite, fait l'objet de notre travail. Nous développons dans ce mémoire des codes de calcul utilisant la méthode TLM (Transmission Line Matrix), qui est adaptée à ce genre de problème, pour traiter les milieux dispersifs pour arriver, à la fin, à la modélisation de l'isolateur en guide coplanaire utilisant la résonance gyromagnétique
The evolution of the communication systems makes the considerable progress every year and remains a strong sector of the development of the microelectronic industry. The future developments require and imply the integration of the devices ultra high frequencies and more especially the non reciprocal passive components (insulators, circulators, ferrite modulators). The planar structures are those wich are used thanks to their simple configuration and they permit the connection in surface without "via". Obtaining of the non reciprocal effects on a ferrite coplanar line is the subject of our work. We develop in this thesis the computer codes using the TLM method (Transmission Line matrix), wich is well adapted to this kind of problem, to treat the anisotropic and the dispersive mediums to arrive to modeling of the insulator coplanar guide using the gyromagnetic resonance
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Rivière, Jérôme. "Conception et réalisation de rectenna en technologie guide d'onde coplanaire pour de faibles niveaux de puissance." Thesis, La Réunion, 2016. http://www.theses.fr/2016LARE0023/document.

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Le sujet de thèse abordé dans ce mémoire s'inscrit dans la thématique du LE²P sur l'autonomie énergétique des réseaux de capteurs. Ce travail est axé sur la partie réception et redressement du transfert de l'énergie sans fil pour l'apport d'énergie à des capteurs nomades. Ce procédé n'est pas nouveau et prend son origine dans les années 1950. Les connaissances dans l'appréhension de ce processus sont nombreuses pour certains guides d'onde tels que le microruban. Mais la nécessité de perçages dans ces structures de guide d'onde peut être contraignante et causer des disparités dans une chaîne de construction. Ceci a motivé les travaux présentés dans ce mémoire qui utilise une technologie de guide d'onde coplanaire (CPW) peu exploitée. Ainsi, la conception d'un tel dispositif passe par la maîtrise d'un point de vue conceptuel et expérimental de cette technologie. La démarche consiste à utiliser ce guide d'onde coplanaire en minimisant les effets négatifs que peut engendrer ce dernier, pour s'abroger du besoin de perçage et faciliter la réalisation des dispositifs de redressement en limitant le nombre d'interactions humaines
The thesis subject dealt in this report lies in the LE²P framework on the energy sustainability of wireless sensor network. This work is dedicated to the reception and rectifying part of wireless power transfer to give energy sustainability to nodes in a sensor network. This process is not new and originate from the years 1950. The behavior of this process is since well-known in several waveguide such technology as microstrip. But the need of drill in those waveguide circuit may be inconvenient and lead to discrepancy from one circuit to another. This was the motivational keystone to the work address in this report which uses coplanar waveguide (CPW) over microstrip. The conception of such devices goes through a good conceptual and experimental understanding of the waveguide technology. The approach in this document consists of using coplanar waveguide while minimizing its drawbacks, in order to avoid drilling in the substrate and ease the realization of the rectifying part by limiting the human interaction
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6

Sani, Suleiman Muhammad. "Photo-commutateur à large bande en technologies guide d'onde coplanaire et microruban réalisé sur GaAs:Cr+ et sur Si." Grenoble INPG, 1992. http://www.theses.fr/1992INPG0167.

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Le controle optique de circuits microondes permet d'envisager des nouvelles applications, par exemple pour les reseaux d'antennes a dephasage, la generation de signaux microondes tres courts et a large spectre, pour l'instrumentation et le traitement du signal. L'effet photoconducteur est un des phenomenes physiques qui permet ce controle. Dans notre etude, nous avons realise et caracterise deux photo-commutateurs a large bande en technologies guide d'onde coplanaire et microruban realises sur gaas: cr#+ et sur si. A partir d'une modelisation phenomenologique du dispositif, nous avons propose un schema equivalent qui nous a permis de simuler le fonctionnement du photocommutateur. Nous avons concu et realise des montures de test permettant les caracterisations des dispositifs sans et avec eclairement permanent. Un premier photocommutateur a large bande (0,5 ghz-10 ghz) en technologie microruban realise sur si a permis d'obtenir un rapport on/off de 10 db. Nous avons aussi realise des photocommutateurs en technologies guide d'onde coplanaire et microruban sur gaas: cr+ avec une bande passante de 4 ghz et un rapport on/off de 10 db. La comparaison entre les resultats experimentaux et theoriques a permis de mettre en evidence les problemes presentes par les fils d'interconnexions et les parametres importants du fonctionnement des photocommutateurs et nous avons propose des voies d'amelioration en optimisant ces parametres
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7

Bouzidi, Farid. "Contribution à l'étude de pertes et transitions en ligne coplanaire." Toulouse, ENSAE, 1994. http://www.theses.fr/1994ESAE0014.

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Les applications de ce travail sont consacrées à la ligne coplanaire et aux phénomènes limitatifs que constituent les pertes métalliques, le plan de masse arrière lors de l'intégration monolithique et la limite de validité du concept d'impédance caractéristique appliqué à la réalisation de transitions progressives. L'analyse des structures stratifiées relève communément d'une formulation intégrale du problème aux limites, résolu dans le domaine spectral. L'étude de l'influence des épaisseurs de métallisation sur les pertes de ces lignes de transmission renvoie alors au problème de la prise en compte de conditions aux limites exprimant le couplage entre dhamps de part et d'autre d'une interface non réductible à une impédence de surface. Afin de systématiser les formulations intégrales et de résoudre ce problème en particulier, le premier chapitre développe le formalisme et les équivalences qui permettent de ramener le processus de formulation à l'analyse d'un réseau électrique opérationnel équivalent. Le deuxième chapitre présente l'application à l'étude de l'influence des épaisseurs de m"tallisation sur les pertes des lignes coplanaires. Dans le troisième chapitre, après l'analyse de la concurrence des effets des plans de masse latéraux et arrière, la levée de dégénérecence entre modes de boîtier et modes spécifiques est étudiée à partir de l'analyse des distributions de puissance dans la section droite de la ligne. Un échange de modes entre les courbes de dispersion est démontré. Le dernier chapitre porte sur la réalsiation de transitions progressives entre lignes coplanaire et microruban et préalablement, sur l'extension du concept d'impédance caractéristique - utilisé dans le contexte de la conception de circuits - et la détermination des plages de validités des différentes définitions envisageables pour celle-ci.
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Pistono, Emmanuel. "Conception et réalisation de filtres microondes planaires accordables par varactors, à base de structures périodiques." Phd thesis, Grenoble INPG, 2006. http://tel.archives-ouvertes.fr/tel-00429349.

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L'objectif de ce travail fut de concevoir des filtres accordables dans le domaine RF/microondes. Après avoir dressé un état de l'art du filtrage accordable microonde et défini des facteurs de mérite permettant de comparer ces types de dispositifs, trois topologies de filtres ont ensuite été proposées. Ces filtres sont basés sur des structures périodiques planaires constituées de lignes de propagation et de capacités chargeant ces lignes. Pour les trois études présentées, des modélisations semi-réparties de ces structures ont été effectuées, modélisations analytiques prenant en considération un modèle réparti des lignes de propagation et un modèle localisé des capacités considérées. Des règles de conception simples ont alors été déduites. Des filtres fixes et accordables ont pu être conçus à partir de ces méthodes de conception puis réalisés en technologie coplanaire hybride. L'accord de la fréquence de fonctionnement et/ou de la bande passante de ces filtres est réalisé par l'intermédiaire de varactors chargeant les lignes de propagation, les varactors que nous avons utilisés étant du type jonctions semiconductrices polarisées en inverse présentant des facteurs de qualité acceptables aux fréquences de travail considérées pour nos prototypes (entre 0,5 et 9 GHz). Les mesures des prototypes réalisés ont ensuite permis de valider les études théoriques proposées.
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Mokhtari, Cerine. "Développement d’une station de mesure hyperfréquence sous pointes nano-robotisée et automatisée." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILN053.

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Dans le contexte général de l'industrie européenne de la nanoélectronique, il est nécessaire de développer de nouvelles techniques et de nouveaux instruments de caractérisation sous pointes pour la validation précise et fine de circuits destinés à des applications haute fréquence (HF). Pour faire progresser la miniaturisation des dispositifs à haute fréquence, de nouvelles questions métrologiques liées à la caractérisation dimensionnelle et électrique doivent être abordées. Un instrument universel de caractérisation des dispositifs à radiofréquences (RF) consiste en un analyseur de réseau vectoriel (VNA), une station de mesure équipée d'une paire de sondes micro-ondes Ground-Signal-Ground (GSG) alignées manuellement ou automatiquement au moyen d'un microscope ou d'un système de caméra sur des substrats d'étalonnage et des dispositifs sous test (DUT). Les structures de test RF conventionnelles nécessitent des tampons (structures de contact) spécifiques pour s'adapter à la géométrie de la pointe de la sonde. Le positionnement de la sonde sur la structure de test CPW génère des erreurs de mesure de désalignement qui affectent la reproductibilité de la mesure. En outre, les dispositifs présentent des impédances extrêmes par rapport à l'impédance de référence 50 Ω du VNA, ce qui se traduit par une sensibilité et une précision de mesure médiocres.Pour relever ce défi, une nouvelle station de mesure sous pointe entièrement automatisée et robotisée a été conçue et construite à partir de zéro. Les sondes de mesure ainsi que le porte échantillon accueillant le dispositif sous test sont montés sur des nano-positionneurs piézoélectriques du constructeur SmarAct®. La vision du contact sondes - au - composant sous test est assurée par une caméra microscope haute résolution. Un analyseur de réseau vectoriel Streamline Keysight® a été intégré à la station afin d'obtenir une solution compacte au plus près des sondes et réduire ainsi les erreurs non systématiques inhérentes aux variations de l'environnement. Enfin, un programme de pilotage des sondes et du porte échantillon automatique basé sur la reconnaissance d'image a été développé avec le logiciel LabVIEWTM
In the general context of the European nanoelectronics industry, it is necessary to develop new on-wafer characterisation techniques and instruments for precise and fine validation of circuits designed for high-frequency (HF) applications. To advance the miniaturisation of HF devices, new metrological issues related to dimensional and electrical characterization must be addressed. A universal instrument for the characterization of RF devices consists of a vector network analyzer (VNA), a measurement station equipped with a pair of ground-signal-ground (GSG) microwave probes aligned manually or automatically using a microscope or a camera system on calibration substrates and devices under test (DUT). Conventional RF test structures require to adapt to the probe tip geometry. The positioning of the probe on the CPW test structure generates misalignment measurement errors that affect the reproducibility of the measurement. In addition, nanodevices have extreme impedances compared to the VNA's reference impedance of 50 Ω, resulting in poor measurement sensitivity and accuracy.To meet this challenge, a new fully automated and robotic on-wafer probing station was designed and built from scratch. The measurement probes as well as the chuck hosting the device under test are mounted on SmarAct® piezoelectric nanopositioners. The vision of the probe-to-DUT contact is provided by a high-resolution microscope camera. A Keysight® Streamline vector network analyzer was integrated into the station to obtain a compact solution close to the probes and thus reduce the non-systematic errors inherent in environmental variations. Finally, a program for driving the probes and chuck based on image recognition was developed with the LabVIEWTM software
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Franc, Anne-Laure. "Lignes de propagation intégrées à fort facteur de qualité en technologie CMOS. Application à la synthèse de circuits passifs millimétriques." Thesis, Grenoble, 2011. http://www.theses.fr/2011GRENT039/document.

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L’objectif de ces travaux est le développement en technologie intégrée standard d’une topologiede ligne de propagation optimisée en termes de pertes, d’encombrement et de facteur de qualitéaux fréquences millimétriques. Cette topologie nommée S-CPW (Shielded CoPlanarWaveguide) utilise le phénomène d’ondes lentes afin de miniaturiser longitudinalement la ligned’un facteur compris entre 1,3 et 3,2 par rapport à des topologies classiques. Disposantégalement de faibles pertes, les lignes développées présentent un facteur de qualité élevé parfoissupérieur à 40, à 60 GHz. A partir de l’étude du champ électromagnétique dans la structure, unmodèle électrique a été développé. C’est le premier modèle dans la littérature prenant en compteles pertes dans ce type de guide d’onde. Plusieurs dispositifs passifs intégrés réalisés avec deslignes S-CPW dans différentes technologies CMOS ont été caractérisés jusqu’à 110GHz. Lacompacité et les faibles pertes d’insertion obtenues pour la mesure de filtres à stubs et dediviseurs de puissance permettent de réussir l’intégration de circuits passifs compacts entechnologie microélectronique CMOS standard aux fréquences millimétriques
This work focuses on high-performance S-CPW (Shielded CoPlanar Waveguide) transmissionlines in classical CMOS integrated technologies for the millimeter-wave frequency band.Thanks to an important slow-wave phenomenon, the physical length of S-CPW decreases by afactor from 1.3 to 3.2 compared with classical transmission lines. Presenting also lowattenuation loss, the developed transmission lines show very high quality factor (higher than 40at 60 GHz). The precise study of the electromagnetism field leads to an electrical model forS-CPWs. This is the first model that takes the losses in this topology into account. Then, somebasic passive circuits designed with S-CPWs and characterized up to 110 GHz are presented invarious CMOS technologies. The low insertion losses and relative low surfaces of a powerdivider and a passband filter show the great interest of S-CPW to integrate compact passivecircuits in classical CMOS technologies at millimeter-wave frequencies
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Books on the topic "Guide coplanaire"

1

Simons, Rainee. Modeling of some coplanar waveguide discontinuities. [Washington, DC]: National Aeronautics and Space Administration, 1988.

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Coplanar waveguide circuits, components, and systems. New York: Wiley-Interscience, 2001.

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N, Simons R., and Lewis Research Center, eds. Channelized coplanar waveguide pin-diode switches. Cleveland, Ohio: Lewis Research Center, 1989.

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Ponchak, George E. EEsoF MICAD and ACADEMY macro files for coplanar waveguide and finite ground plane coplanar waveguide. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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Ponchak, George E. EEsoF MICAD and ACADEMY macro files for coplanar waveguide and finite ground plane coplanar waveguide. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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Ponchak, George E. A new rectangular waveguide to coplanar waveguide transition. [Washington, D.C.]: NASA, 1990.

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Simons, Rainee N. Coplanar Waveguide Circuits Components & Systems. Wiley-IEEE Press, 2001.

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Simons, Rainee N. Coplanar Waveguide Circuits, Components, and Systems. Wiley & Sons, Incorporated, John, 2008.

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Simons, Rainee N. Coplanar Waveguide Circuits, Components, and Systems. Wiley & Sons, Incorporated, John, 2004.

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Simons, Rainee N. Coplanar Waveguide Circuits, Components, and Systems. Wiley & Sons, Incorporated, John, 2002.

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Book chapters on the topic "Guide coplanaire"

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Reddy, Mekala Harinath, D. Sheela, J. Premalatha, and Abhay Sharma. "Coplanar Wave Guide Fed Dual Band Antenna Loaded with Metamaterial Split Ring Resonator." In Lecture Notes in Electrical Engineering, 53–63. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4866-0_8.

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Kavitha, K. R., S. Vijayalakshmi, B. Murali Babu, E. Glenda Lorelle Ritu, and M. Naveen Balaji. "Design and Analysis of Single and Multi-Band Rectangular Microstrip Patch Antenna Using Coplanar Wave Guide." In Modeling, Simulation and Optimization, 511–21. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-6866-4_39.

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El Hamdouni, Akram, Abdelali Tajmouati, Hamid Bennis, and Mohamed Latrach. "A Comparison Between the Microstrip and the Co-Planar Wave-Guide Antennas in Ultra-Wide-Band Applications by Using Fractal Geometry." In Advances in Computer and Electrical Engineering, 258–89. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7539-9.ch008.

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This chapter describes a comparison study between the techniques of coplanar waveguide (CPW) and microstrip line applied to antenna in the ultra-wide band by analyzing the different parameters achieved into simulation and fabrication. Fractal geometry has been chosen to design the radiating patch of both types of antennas by including two electromagnetic solvers based on two different numerical methods: CST of microwave studio and ADS. The parameters S11, current density, gain, and the radiation pattern have been achieved into simulation and measurement in the frequency range 3.1 – 10.6GHz released by the Federal Communications Commission (FCC) as a commercial UWB. The photolithographic technique, the network analyzer, and the anechoic chamber have been involved to perform the fabrication and the measurement of the validated microstrip and CPW antennas.
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Debnath, Pampa, and Arpan Deyasi. "Transmission Line and Its Implementation." In Contemporary Developments in High-Frequency Photonic Devices, 39–55. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8531-2.ch003.

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In unbounded media, wave propagation is supposed to be unguided. The existence of uniform plane wave is considered to be all through the space. Electromagnetic energy related with the wave stretched over a broad area. In TV and radio broadcasting, unbounded medium propagation of the wave is required. Here transmission of information is destined for one and all who may be interested. Another way of transmitting information is by guided media. Guided media acts to direct the transmission of energy from transmitter to receiver. Transmission lines are usually used in low frequency power distribution and in high frequency communications as well as in the ethernet and internet in computer networks. Two or more parallel conductors may be used to construct a transmission line, which connects source to a load. Typical transmission lines consist of coaxial line, waveguide, microstrip line, coplanar waveguide, etc. In this chapter, problems related with transmission lines are solved with the help of EM field theory and electric circuit theory.
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Solymar, L., and E. Shamonina. "Phenomena in waveguides." In Waves in Metamaterials, 199–212. Oxford University PressOxford, 2009. http://dx.doi.org/10.1093/oso/9780199215331.003.0006.

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Abstract The term waveguide is often used in a general sense meaning a structure that guides a wave from point A to point B. Some waveguides are open; the fields may extend to a considerable distance away or they may be closed, confining the fields to the interior of the waveguide. Both varieties will be discussed in the present chapter. For experiments on metamaterials it is an advantage to confine the waves. This was the reason, for example, why in the first experiments showing negative refraction (Shelby et al., 2001a), the waves propagated between metal plates (see Fig. 2.34). The waveguides discussed fall into two categories: they have either some special features or have device applications. In Section 6.2 the special feature is that under certain well-defined circumstances waves may propagate in a hollow waveguide (see Section 1.5) below their cutoff frequency. In Section 6.3 we shall present filters using metamaterial elements in coplanar and strip waveguides. Section 6.4 is concerned with phase shifters, Section 6.5 with couplers. In Section 6.6 we look in some more detail at the 2D experiments of Grbic and Eleftheriades (2004) where microstrip waveguides loaded by lumped elements are used for demonstrating subwavelength imaging.
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Conference papers on the topic "Guide coplanaire"

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Auracher, Franz, and B. Noll. "Design trade-offs for high-performance phase modulators in LiNbO3." In Integrated and Guided Wave Optics. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/igwo.1986.thcc13.

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Due to recent success in optical heterodyne transmission experiments there is increasing interest in high-performance phase modulators. We have, therefore, performed calculations on the optimum design of Ti-diffused LiNbO3-waveguide modulators. We have considered traveling wave modulators in c- and y-cut crystals with symmetric and asymmetric coplanar electrodes (Fig. 1). As the calculations show that the asymmetric electrodes on c-cut crystals with TM-like excitation yield the best performance the results are given for this case.
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Fan, Z., and S. R. Pennock. "Characteristics of Coplanar Waveguide Loaded Inset Dielectric Guide." In 24th European Microwave Conference, 1994. IEEE, 1994. http://dx.doi.org/10.1109/euma.1994.337413.

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Oshiro, K., H. Mikami, S. Fujii, T. Tanaka, H. Fujimori, M. Matsuura, and S. Yamamoto. "Fabrication of circulator with coplanar wave guide structure." In INTERMAG Asia 2005: Digest of the IEEE International Magnetics Conference. IEEE, 2005. http://dx.doi.org/10.1109/intmag.2005.1463709.

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Young, D., and C. S. Tsai. "GHz Bandwidth Magnetooptic Interaction in YIG-GGG Waveguide Using Magnetostatic Forward Volume Waves." In Integrated and Guided Wave Optics. Washington, D.C.: Optica Publishing Group, 1988. http://dx.doi.org/10.1364/igwo.1988.mf8.

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From the dispersion relations of the magnetostatic waves (MSW) in Yttrium Iron Garnet - Gadolinium Gallium Garnet (YIG-GGG) thin film[1], it is found that while the theoretical bandwidth of the magnetostatic surface waves (MSSW) decreases considerably as the carrier frequency is increased, the theoretical bandwidth of the magnetostatic forward volume waves (MSFVW) increases substantially with the carrier frequency. We have noted previously the decrease of magnetooptic (MO) bandwidth from 487 MHz to 250 MHz in noncollinear coplanar guided-wave interaction involving the MSSW[2] as the carrier frequency was increased from 3.0 GHz to 7.0 GHz. However, in view of the dispersion characteristics of the MSFVW as mentioned above, the MO bandwidth associated with noncollinear coplanar interaction involving the MSFVW can potentially be significantly larger than that involving the MSSW as the carrier frequency goes beyond 2.0 GHz. Since it is of great interest to accomplish wideband MO interaction at high carrier frequency, the MSFVW was also used in our earlier work. For example, a MO bandwidth of 550 MHz (defined at the two -3dB points) and a TM0 to TE0 mode-conversion efficiency of 0.5% were obtained in our earlier experiment with the MSFVW centered at 3.0 GHz using a homogeneous (uniform) DC magnetic, field of 2250 Oe[3]. Recently, a technique for enhancement of MO bandwidth that employs inhomogeneous DC magnetic field[4] was reported[5]. In that particular work, an increase of MO bandwidth from 30 to 350 MHz (defined between the null points or approximately 125 MHz based on the conventional definition of -3dB points) centered at the carrier frequency of 1.45 GHz was obtained at the optical wavelength of 1.15µm by switching from a homogeneous to an inhomogeneous DC magnetic field. Specifically, an inhomogeneous field that varied from 2150 to 2350 Oe across an 8.0 mm aperture of the MSFVW transducer was used. Due to the concomitant "channelization effect" with the resulting MSFVW the measured TM0 to TE0 mode-conversion efficiency was found to decrease from 1.0 to 0.03% by switching from the homogeneous to the inhomogeneous field.
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Chen, W., D. Young, and C. S. Tsai. "Theory and experiment on guided-optical wave mode-conversion through noncollinear interaction with magnetostatic surface waves." In Integrated and Guided Wave Optics. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/igwo.1986.thcc1.

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We reported at the 1984 Topical Meeting on Integrated and Guided-Wave Optics experimental observations on diffraction and mode-conversion of guided-optical waves at 1.152-μm wavelength in a YIG-GGG waveguide by the magnetostatic surface waves (MSSW) in a noncollinear coplanar configuration in which the propagation directions of the incident and diffracted light waves were nearly orthogonal to that of the MSSW (Fig. 1).1 Specifically, by tuning both the dc magnetic field and the carrier frequency of the MSSW a bandwidth as large as 4 GHz, namely, from 3.0 to 7.0 GHz, was measured. We present a detailed theory that has been developed most recently to verify the experimental observation referred to above. The theoretical predictions have also been found to agree with the additional results obtained with the most recent experiments at 1.302-μm wavelength. Both the theoretical treatment and results of these most recent experiments will be reported.
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Chung, Haeyang, William S. C. Chang, and Eric L. Adler. "Computer Modeling of Interferometric Microwave Traveling Wave Modulators and Switches in LiNbO3." In Numerical Simulation and Analysis in Guided-Wave Optics and Opto-Electronics. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/gwoe.1989.sf3.

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A number of single-mode electrooptical LiNbO3 channel waveguide modulators and switches are all operating on the principle of mode interference. These devices include the Mach-Zehnder, the crossing channel and the widened X (or zero gap directional coupler) devices. For operation at high microwave frequencies, they are traveling wave devices [1,2]. The electrodes of these devices are in the form of coplanar waveguide (CPW), symmetric coplanar strip (SCPS) and asymmetric coplanar strip (ACPS) microwave transmission lines. Although the basic principles of operation of these devices are well known, their design optimization is complex because many parameters are involved [3]. We shall describe here a numerical modeling procedure that could be used systematically to optimize the drive power requirement for a given bandwidth. Specifically, we shall show: (1) The bandwidth of interferometric traveling wave devices depends only on the electrode length L, the microwave velocity (represented by the microwave effective index n eff m ) and the frequency dependence of microwave attenuation. (2) Numerical calculation of the microwave attenuation and n eff m as a function of the electrode width W, gap of separation G and thickness T has been obtained. Thus the bandwidth requirement can be satisfied by appropriate choice of L, G, W and T. (3) In the first order, the optical waveguide that can be fabricated with the tightest optical mode confinement has the lowest drive power requirement. (4) The microwave drive power (not including the effect of impedance mismatch to the generator) can then be minimized by using the waveguide parameters for tight mode confinement and by varying W, T and G within the allowed range of values that satisfy the bandwidth requirement.
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Ridgway, Richard W. "Integrated-optic sampler for transient rf and microwave signals." In Integrated and Guided Wave Optics. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/igwo.1986.thcc14.

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High-speed sampling of electrical signals using integrated-optic devices has become a subject of great interest.1,2 Their small size, the ease of interfacing them with fast laser sources, and the high potential bandwidth of the electrooptic effect make integrated-optic devices ideal for high-speed and possibly low-cost sampling devices. The work reported here is devoted to development of the novel high-speed integrated-optic sampler shown in Fig. 1. The device consists of a series of electrooptic couplers fabricated along a coplanar rf stripline so that the electric field across each coupler is determined by the local voltage along the stripline and associated ground strip. A short optical pulse, which propagates in a direction opposite to the traveling wave electrical signal, passes sequentially through the electrooptic couplers causing a small amount of light to couple into the output waveguides and propagate to the optical detectors. The amount of coupled light is dependent on the local electric field. Each detector integrates the energy of the coupled optical pulses in the respective output waveguides to determine the associated instantaneous values of the electrical signal.
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Rahmatian, F., A. Kulpa, N. A. F. Jaeger, R. James, M. Bégin, H. R. Khazaei, E. Berolo, and F. Gannouchi. "Low-Loss Slow-Wave Coplanar Strips and Coplanar Waveguides for Electro-Optic Modulators." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/cleo_europe.1996.cthi9.

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Slow-wave (SW) coplanar electrodes can be used in compound semiconductor based electrooptic modulators to provide microwave/lightwave velocity matching and, therefore, make it possible to obtain modulators with wide bandwidths [1]-[3]. The microwave index for conventional, thin, coplanar electrodes on GaAs is ~2.6 whereas the effective index for the lightwave guided by typical AlGaAs/GaAs optical waveguides is in the range 3.2 - 3.4. Higher microwave indices (larger than 2.6) can be achieved by incorporating capacitive fins, and/or capacitive fins with pads on their ends, in the gaps between the coplanar electrodes [1],[3]. Here, we compare SW coplanar strips (SW-CPS) with SW coplanar waveguides (SW-CPW). Measurements on several SW-CPS and SW-CPW show that microwave indices close to, and even larger than, 3.4 can be achieved; i.e., both SW-CPS and SW-CPW are capable of achieving the necessary velocity-match condition. Other factors of interest are the characteristic impedance and the loss. SW-CPS and SW-CPW both can be designed to be 50Ω lines and their losses depend very much on their geometries.
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De Angelis, G., A. Lucibello, E. Proietti, S. Catoni, and R. Marcelli. "Low Design of Micromachined Coplanar Grounded Wave-Guides." In 2007 International Semiconductor Conference (CAS 2007). IEEE, 2007. http://dx.doi.org/10.1109/smicnd.2007.4519699.

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dai, yifan, hao hu, guipeng tie, and shuai chen. "Design and optimization of surface profilometer based on coplanar guide rail." In Optoelectronics and Micro/nano-optics, edited by Min Qiu, Min Gu, Xiaocong Yuan, and Zhiping Zhou. SPIE, 2017. http://dx.doi.org/10.1117/12.2282666.

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