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Relevant bibliographies by topics / Field circuit coupling

Academic literature on the topic 'Field circuit coupling'

Author: Grafiati

Published: 14 March 2023

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Journal articles on the topic "Field circuit coupling"

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Xu, Zhenfa, Fanyu Kong, Kun Zhang, Yinfeng Wang, Jiaqiong Wang, and Ning Qiu. "Internal Flow Field and Loss Analysis of a Magnetic Drive Pump’s Cooling Circuit." Energies 16, no. 2 (January 11, 2023): 840. http://dx.doi.org/10.3390/en16020840.

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The cooling circuit is an important component of the magnetic drive pump because it prevents demagnetization of the permanent magnet and damage to the containment shell owing to a high temperature increase. In this paper, the flow field and losses of the cooling circuit of the magnetic pump are discussed and experimentally verified based on numerical simulation methods. Five different lengths of magnetic couplings were designed, and the flow field distribution, cooling flow rate, and loss variation laws of the cooling circuit were analyzed. The results show that the pump flow rate and magnetic coupling length have a minimal effect on the velocity distribution in the cooling circuit. When the magnet length increases from 30 mm to 55 mm, the temperature rise of the cooling circuit and the pressure drop at the gap increase by 23.1% and 25.3%, respectively. When the length of the magnetic coupling remains constant, the cooling flow rate of the cooling circuit falls with an increasing pump flow rate, and it reduces by 8.4% when the pump flow rate increases from 0.7 Q to 1.3 Q. The water friction loss and eddy current loss of the cooling circuit increase with an increase in the magnetic coupling length, while the cooling flow rate decreases. When the magnet length increases from 30 mm to 55 mm, the eddy current losses in the coupling circuit and the water friction losses in the cooling circuit increase by 45% and 35%, respectively, while the cooling flow rate decreases by 13%.

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BARAIA-ETXABURU ZUBIAURRE, IGOR, and David Garrido Diez. "BASICS OF INDUCTIVE COUPLING AND ROLE OF DECOUPLING CAPACITORS." DYNA 97, no. 6 (November 1, 2022): 579–83. http://dx.doi.org/10.6036/10456.

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Electromagnetic coupling is the mechanism by which one circuit induces noise or interference in another adjacent circuit. This coupling mechanism generates Electromagnetic Interferences that degrade or even interrupt the operation of adjacent circuits. However, it is often rare in the academic and professional fields of power electronics to have sufficient knowledge to identify and address this problem. Therefore, intuition plays an important role in anticipating and dealing with this problem. This article describes the basic principles of this coupling mechanism and proposes simple solutions to this electromagnetic interference problem. These solutions must be applied right from the design phase of any electronic equipment. The problem described and its solutions are experimentally validated in a simple test circuit. This article is mainly oriented to the academic and professional field of power electronics and aims to describe in a simple and experimental way the problems associated with inductive coupling.

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Wang, Wei Xin, and Wei Zhang. "Analyse the Field-Circuit Coupling Model of the Switching Converters." Applied Mechanics and Materials 336-338 (July 2013): 556–60. http://dx.doi.org/10.4028/www.scientific.net/amm.336-338.556.

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Based on the finite element methods of ANSYS software, field-circuit coupling methods are generally used in modeling and analsysing switch converter circuit of Simple step-up Boost circuit. Compare the Simulation results with ANSYS and MATLAB/simulink circumstances, Field-circuit coupling model is correct, through real calculation was tested and verified. Combination with authors preceding paper, there are indications that ANSYS software applies to electromagnetic field analyse electronic device and circuit. Above research works make a foundation for further studying electromagnetic field analyse problem working personnel and scientific research personnel are of application worthiness.

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Chen, Chung-Cheng, Jian Ke, and Yen-Ting Chen. "New Method of State-Space Formulation for Degenerate Circuit and Coupling Circuit." Mathematical Problems in Engineering 2019 (June 17, 2019): 1–13. http://dx.doi.org/10.1155/2019/1394725.

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The state-space formulation overcomes many limitations of traditional differential equation approach and is utilized as alternative to many traditional approaches in the modern electrical field. This paper proposes a new method of finding the state equation for degenerate circuit and coupling circuit that have not been systematically solved now. This paper also introduces some sound improvements to solve complicated dependent-source circuits. Four comparative examples are demonstrated to show the significant merits that our method owns over the traditional approaches.

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Liang, Zhen Guang, and Ming Yuan Yang. "The Coupling of Electrostatic Discharge to Electronic Equipment." Advanced Materials Research 732-733 (August 2013): 1179–83. http://dx.doi.org/10.4028/www.scientific.net/amr.732-733.1179.

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Electrostatic Discharge (ESD) is a serious threat to electronic equipment. It can couple into equipment and disturb or even damage internal circuit. In the paper, the coupling of ESD to electronic equipment is presented. It includes the coupling of ESD to EUT and that to PCB. In the coupling of ESD to EUT, there gives five conduction interferences and shows that it’s important to obstruct ESD current and lead its route bypassing sensitive circuit. There also presents the coupling of ESD radiated field to EUT and PCB. It shows unintentional antenna structures and parasitic parameter circuits play important role in ESD interference. They need to be removed and restrained.

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Melgoza, E., R. Escarela-Perez, and M. A. Arjona. "Field-circuit coupling using existing network transients codes." IEEE Transactions on Magnetics 42, no. 4 (April 2006): 1055–58. http://dx.doi.org/10.1109/tmag.2006.871924.

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De Gersem, H., R. Mertens, U. Pahner, R. Belmans, and K. Hameyer. "A topological method used for field-circuit coupling." IEEE Transactions on Magnetics 34, no. 5 (1998): 3190–93. http://dx.doi.org/10.1109/20.717748.

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Hamed, M. "Coupling Between Separate Phases of Coaxial Double Circuit Transmission Lines." Active and Passive Electronic Components 13, no. 2 (1988): 85–111. http://dx.doi.org/10.1155/1988/24292.

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The paper studies the so-called coaxial overhead transmission lines. The concentric phases are considered. The mathematical analysis for voltage and current is presented. The telegraphic equations of the double circuit power lines with the mutual effect between circuits are introduced. The condition for single circuit transmission line is checked. The mutual effect between both circuits is studied on the basis of the ratio between the two currents of both circuits. The appeared phase shift between the two vectors of currents is inserted in the investigation. The magnetic field intensity at an external point of a line is mathematically expressed. Its value is approximated for the purpose of zero mutual inductance between phases of the same circuit. The mutual inductance between the two nearest groups of phases due to the linkage flux for the studied line is formulated. Its dependency on the distance from the phases as well as on the ratio of currents of both circuits is analysed. Then, the effect of phase shift on the mutual inductance is investigated. An idea for the control of the ratio between currents of both circuits of a line is presented.

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WESSEL-BERG, TORE. "SELF-CONSISTENT FIELD THEORY OF GENERAL PERIODIC CIRCUITS FOR TRAVELING WAVE TUBES." International Journal of High Speed Electronics and Systems 04, no. 04 (December 1993): 365–407. http://dx.doi.org/10.1142/s0129156493000170.

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A general method for exact analysis of cylindrical periodic circuits for traveling wave tubes without initial assumptions of field or current distributions is described. The procedure is based on transforming the stationary periodic circuit to Fourier space, in the same manner as one does the ordinary RF fields. By this approach the circuit is represented in Fourier space by an infinite number of harmonic circuit components. The interaction, or coupling, between the field harmonics and the stationary circuit harmonics is conceptually a convolution process. The mathematical description of this process involves the intermediary of a convoluting circuit matrix formed from the harmonics of the stationary metallic circuit. For any circuit this matrix is Hermitian and therefore guaranteed a full set of orthogonal eigenvectors and corresponding real eigenvalues. This complete set of vectors serves as a basis for expansions of the RF electric and magnetic harmonic fields. Due to the general nature of the metallic circuit, with surface areas that are partly metallic and partly open, the eigenvectors separate into two distinct sets, one set having eigenvalues equal or close to unity, and the other set eigenvalues equal or close to zero. The first set is associated directly with the metallic parts of the circuit and describes localized surface modes, including surface currents on the two circuit boundaries. The second set, which essentially is a nullset, does not "see" the metallic parts of the circuit, and describes the fields in the open areas of the circuit. Similar expansions are made in the dielectric rod support system exterior to the circuit itself. The paper provides a systematic and general analysis of the entire periodic configuration, based on a conversion of the field equations to a set of first order differential equations in the tangential components of the RF electric and magnetic field harmonics. In all regions the solutions are expressed in terms of transmission matrices which combine through simple boundary conditions to form an overall homogeneous set of equations. Its numerical solution provides all relevant data for the entire periodic configuration, comprising the finite thickness circuit itself, the dielectric support rods, and the enclosing metallic shield. The paper provides explicit formulae for numerical calculations of circuit characteristics, such as omega-beta diagram, interaction impedance, loss due to finite circuit conductivity, and detailed field and current distributions. Throughout the paper emphasis is placed on generality, so that the results are applicable to any kind of periodic cylindrical circuits. Application of the theory to a tape helix circuit is discussed briefly.

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Jia, Huili, Jiaqiang Yang, Rongfeng Deng, and Yan Wang. "Loss Investigation for Multiphase Induction Machine under Open-Circuit Fault Using Field–Circuit Coupling Finite Element Method." Energies 14, no. 18 (September 9, 2021): 5686. http://dx.doi.org/10.3390/en14185686.

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This paper focuses on the loss estimation for the multiphase induction machine (IM) operating under fault-tolerant conditions through the field–circuit coupling finite element method (FEM). Both one-phase and two-phase open-circuit faults of a seven-phase IM are researched, and different spatial positions of the fault phases are taken into consideration. The magnitudes and phase angles of the residual phase’s current are deduced based on the principle of equal magnitude of the residual phase currents and unchanged fundamental magnetic motive force (MMF). The magnetic fields’ coupling between the fundamental and harmonic planes is analyzed. Then, the time-stepping electromagnetic fields calculation of the seven-phase IM are carried out under the commercial software Simplorer–Maxwell environment. The transient and steady performance for both the health and fault conditions are obtained based on the rotor field-oriented control (RFOC) strategy. The Joule loss and iron loss are calculated for the torque step and slope responses. The seven-phase motor driving platform is established to verify the numerical calculation results. The proposed method is effective for predicting the loss and designing a reasonable operating range for multiphase IM operating under fault-tolerant conditions considering the thermal balance.

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Dissertations / Theses on the topic "Field circuit coupling"

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Lee, Chun-ming Angus, and 李俊明. "Reduction of electromagnetic interference due to electric field coupling on printed circuit board." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B29957709.

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Lee, Chun-ming Angus. "Reduction of electromagnetic interference due to electric field coupling on printed circuit board /." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23501674.

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Arkeholt, Simon. "Induction in Printed Circuit Boards using Magnetic Near-Field Transmissions." Thesis, Linköpings universitet, Teoretisk Fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-148788.

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In 1865 Maxwell outlined the theoretical framework for electromagnetic field propagation. Since then many important developments have been made in the field, with an emphasis on systems using high frequencies for long-range interactions. It was not until recent years that applications based on short-range inductive coupling demonstrated the advantages of using low frequency transmissions with magnetic fields to transfer power and information. This thesis investigates magnetic transmissions in the near-field and the possibility of producing induced voltages in printed circuit boards. A near-field magnetic induction system is designed to generate a magnetic flux in the very low frequency region, and used experimentally to evaluate circuit board induction in several interesting environments. The resulting voltages are measured with digital signal processing techniques, using Welch’s method to estimate the spectrum of the received voltage signal. The results show that the amount of induced voltage is proportional to the inverse cube of the transmission distance, and that the system is able to achieve a maximum induced voltage of 65 \micro V at a distance of 2.5 m and under line-of-sight conditions. It is also concluded that conductive obstructions, electromagnetic shielding and background noise all have a large impact on the obtained voltage, either cancelling the signal or causing it to fluctuate.

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Kwok, Sai Kit. "The investigation of near field couplings between circuit elements on dielectric boards /." access full-text access abstract and table of contents, 2005. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?phd-ee-b1988736xa.pdf.

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Thesis (Ph. D.)--City University of Hong Kong, 2005.
"Submitted to Department of Electronic Engineering in partial fulfillment of the requirements for the degree of Doctor of Philosophy." Includes bibliographical references (leaves 115-128).

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Saint-Laurent, Martin. "Modeling and Analysis of High-Frequency Microprocessor Clocking Networks." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7271.

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Integrated systems with billions of transistors on a single chip are a now reality. These systems include multi-core microprocessors and are built today using deca-nanometer devices organized into synchronous digital circuits. The movement of data within such systems is regulated by a set of predictable timing signals, called clocks, which must be distributed to a large number of sequential elements. Collectively, these clocks have a significant impact on the frequency of operation and, consequently, on the performance of the systems. The clocks are also responsible for a large fraction of the power consumed by these systems. The objective of this dissertation is to better understand clock distribution in order to identify opportunities and strategies for improvement by analyzing the conditions under which the optimal tradeoff between power and performance can be achieved, by modeling the constraints associated with local and global clocking, by evaluating the impact of noise, and by investigating promising new design strategies for future integrated systems.

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Gruhler, Nico [Verfasser], and Wolfram H. P. [Akademischer Betreuer] Pernice. "Near-field coupling in hybrid integrated photonic circuits / Nico Gruhler ; Betreuer: Wolfram H. P. Pernice." Münster : Universitäts- und Landesbibliothek Münster, 2019. http://d-nb.info/1175506370/34.

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Op, 'T Land Sjoerd. "La modélisation de l’immunité des circuits intégrés au-delà de 1 GHz." Thesis, Rennes, INSA, 2014. http://www.theses.fr/2014ISAR0029/document.

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La compatibilité électromagnétique (CEM) est l'aptitude des produits électroniques à coexister au niveau électromagnétique. Dans la pratique, c'est une tâche très complexe que de concevoir des produits compatibles. L'arme permettant de concevoir des produits bon-du-premier-coup est la modélisation. Cette thèse étudie l'utilité et la faisabilité de la modélisation de l'immunité des circuits intégrés (CI) au-delà de 1 GHz. Si les pistes des circuits imprimés déterminent l'immunité rayonnée de ces circuits, il serait pertinent de pouvoir prévoir l'efficacité de couplage et de comprendre comment elle découle du routage des pistes. Les solveurs full-wave sont lents et ne contribuent pas à la compréhension. En conséquence, un modèle existant (la cellule de Taylor) est modifié de manière à ce que son temps de calcul soit divisé par 100. De plus, ce modèle modifié est capable de fournir une explication de la limite supérieure pour le couplage d'une onde plane, rasante et polarisée verticalement vers une piste de plusieurs segments, électriquement longue et avec des terminaisons arbitraires. Les résultats jusqu'à 20 GHz corrèlent avec des simulations fullwave à une erreur absolue moyenne de 2,6 dB près et avec des mesures en cellule GTEM (Gigahertz Transversale Electromagnétique) à une erreur absolue moyenne de 4,0 dB près. Si l'immunité conduite des CI est intéressante au-delà de 1 GHz, il faut une méthode de mesure, valable au-delà de 1 GHz. Actuellement, il n'y a pas de méthode normalisée, car la fréquence élevée fausse les observations faites avec la manipulation normalisée. Il est difficile de modéliser et de compenser le comportement de la manipulation normalisée. Par conséquent, une manipulation simplifiée et sa méthode d'extraction correspondante sont proposées, ainsi qu'une démonstration du principe de génération automatique de la carte d'essai utilisée dans la manipulation simplifiée. Pour illustrer la méthode simplifiée, l'immunité conduite d'un régulateur de tension LM7805 est mesurée jusqu'à 4,2 GHz. À part la tendance générale des fréquences qui montent, il y a peu de preuve concrète qui étaye la pertinence de la modélisation de l'immunité conduite des CI au-delà de 1 GHz. Une simulation full-wave suggère que jusqu'à 10 GHz, la plus grande partie de l'énergie rentre dans la puce à travers la piste. Par concaténation des modèles développés ci-dessus, l'immunité rayonnée d'une piste micro-ruban et d'un régulateur de tension LM7805 est prédite. Bien que ce modèle néglige l'immunité rayonnée du CI lui-même, la prédiction corrèle avec des mesures en cellule GTEM à une erreur absolue de 2,1 dB en moyenne. Ces expériences suggèrent que la plus grande partie du rayonnement entre dans un circuit imprimé à travers ses pistes, bien au-delà de 1 GHz. Dans ce cas, la modélisation de l'immunité conduite au-delà de 1 GHz serait utile. Par conséquent, l'extension jusqu'à 10 GHz de la méthode de mesure CEI 62132-4 devrait être considérée. De plus, la vitesse et la transparence du modèle de Taylor modifié pour le couplage champ-à-ligne permettent des innovations dans la conception assistée par l'ordinateur. La génération semiautomatique des cartes d'essais dites maigres pourrait faciliter l'extraction des modèles. Certaines questions critiques et importantes demeurent ouvertes
Electromagnetic Compatibility (EMC) is the faculty of working devices to co-exist electromagnetically. In practice, it turns out to be very complex to create electromagnetically compatible devices. The weapon to succeed the complex challenge of creating First-Time-Right (FTR) compatible devices is modelling. This thesis investigates whether it makes sense to model the conducted immunity of Integrated Circuits (ICs) beyond 1 GHz and how to do that. If the Printed Circuit Board (PCB) traces determine a PCB's radiated immunity, it is interesting to predict their coupling efficiency and to understand how that depends on the trace routing. Because full-wave solvers are slow and do not yield understanding, the existing Taylor cell model is modified to yield another 100 times speedup and an insightful upper bound, for vertically polarised, grazing-incident plane wave illumination of electrically long, multi-segment traces with arbitrary terminal loads. The results up to 20 GHz match with full-wave simulations to within 2.6 dB average absolute error and with Gigahertz Transverse Electromagnetic-cell (GTEM-cell) measurements to within 4.0 dB average absolute error. If the conducted immunity of ICs is interesting above 1 GHz, a measurement method is needed that is valid beyond 1 GHz. There is no standardised method yet, because with rising frequency, the common measurement set-up increasingly obscures the IC's immunity. An attempt to model and remove the set-up's impact on the measurement result proved difficult. Therefore, a simplified set-up and extraction method is proposed and a proof-of-concept of the automatic generation of the set-up's PCB is given. The conducted immunity of an LM7805 voltage regulator is measured up to 4.2 GHz to demonstrate the method. Except for a general trend of rising frequencies, there is only little concrete proof for the relevance of IC immunity modelling beyond 1 GHz. A full-wave simulation suggests that up to 10 GHz, most energy enters the die via the trace. Similarly, the radiated immunity of a microstrip trace and an LM7805 voltage regulator is predicted by concatenating the models developed above. Although this model neglects the radiated immunity of the IC itself, the prediction corresponds with GTEM-cell measurement to within 2.1 dB average absolute error. These experiments suggest the most radiation enters a PCB via its traces, well beyond 1 GHz, hence it is useful to model the conducted immunity of IC beyond 1 GHz. Therefore, the extension of IEC 62132-4 to 10 GHz should be seriously considered. Moreover, the speed and transparency of the modified Taylor model for field-to-trace coupling open up new possibilities for computer-aided design. The semi-automatic generation of lean extraction PCB could facilitate model extraction. There are also critical remaining questions, remaining to be answered

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Cholachue, Ngounou Christel. "Caractérisation des blindages électromagnétiques des câbles et faisceaux aéronautiques." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMR025.

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Ces dernières années, la multiplication des loisirs à bord des nouveaux avions a connu une croissance exponentielle. Dans un appareil comme l’A380, chaque siège intègre plusieurs fonctions (jeux vidéo, musique, etc. ..) et chaque fonction est connectée à l’aide d’au moins un câble électrique. Ce qui nécessite un nombre important de kilomètres de câbles pour établir toutes les connexions électriques à bord d’un tel appareil. En plus l’électrification progressive pour des raisons de sécurité des fonctions auparavant mécaniques, hydrauliques ou pneumatiques, a augmenté les exigences de câblage notamment en compatibilité électro- magnétique (CEM). La cohabitation de tous ces kilomètres de câbles dans un espace aussi réduit a accru les exigences en termes de blindage électromagnétique (EM). Les nombreuses méthodes d’analyse du blindage des câbles et faisceaux sont limitées en termes de rapidité, d’analyse des systèmes multiports. Les outils de simulations eux sont très onéreux (prévoir environ18Ke pour une licence), et nécessitent des compétences avancées et beaucoup de temps pour la caractérisation du blindage des câbles et faisceaux de câbles. Avec un outil de simulation EM 2D/3D comme HFSSR d’ANSYSR, il faut prévoir environ trois heures pour créer le modèle d’une gaine de blindage tressé, et également prévoir un temps de simulation moyen de 20 minutes en utilisant un PC équipé d’un processeur mono-cœur Intel RXeon RCPUE5-1620v4@ 3,50 GHz et 32 Go de RAM physique avec 64 bits Windows 10. En plus, les méthodes et techniques de caractérisation du blindage des câbles et faisceaux de câbles aéronautiques ont montré leurs limites à l’instar du banc triaxial avec lequel il est difficile d’effectuer des mesures d’impédance de transfert au-delà de 100 MHz. Les travaux effectués dans cette thèse ont pour but de dépasser ces limites. Nous avons développé une nouvelle méthode d’extraction rapide des paramètres S des systèmes multiports. La connaissance analytique des paramètres S permet de remonter à des caractéristiques intrinsèques des structures de blindage tubulaire. Par exemple, nos calculs des paramètres S d’une structure de câble coaxial sont prometteurs pour déterminer l’impédance de transfert par rapport à la géométrie et d’autres paramètres physiques des gaines. L’originalité de ce travail de recherche consiste à se familiariser à une méthode analytique et semi-hybride de modélisation des structures de blindage tubulaire en exploitant le formalisme de l’Analyse Tensorielle des Réseaux (ATR) à base de la méthode de Kron. Ce formalisme offre un avantage notable pour l’analyse rapide avec une précision relativement importante des systèmes électriques et électroniques complexes comme le cas des éléments de blindage. La rapidité de la méthode a été évaluée avec différentes structures sur une bande de fréquence allant de 0 Hz à quelques gigahertz en menant à des expressions dont les applications numériques se font sur un temps de calcul ne dépassant pas les millisecondes. D’autre part, nous avons aussi développé nos savoir-faire sur l’analyse des blindages électromagnétiques des câbles et faisceaux de câbles. Une approche a été élaborée pour déterminer l’efficacité de blindage (EB) d’une gaine via une configuration de couplage entre un câble coaxial blindé et une sonde boucle. Une méthode de modélisation innovante a été développée à l’aide de la théorie des circuits pour déterminer l’efficacité de blindage en étudiant le couplage entre un câble nu (conducteur interne) et un câble tressé en parallèle par la méthode de Kron. Nous avons également développé un banc de caractérisation des structures tubulaire de blindage électromagnétique dans le but de fonctionner jusqu’à 300 MHz. Les résultats dans ces études ont été confirmés par des simulations 3D et des mesures
During the last decade, the proliferation of on-board leisure activities in the new aircrafts have been growing exponentially. In the airplane like A380, each seat integrates several functions (video games, music, etc. ..) Additionally, each function must be connected using at least one electric cable. This system requires a significant number of kilometers of cables to establish all the on-board electrical connections. Furthermore, for reasons of safety and security related to mechanical, hydraulic or pneumatic functions, the wiring EMC requirements associated to the massive progressive electrification becomes considerably stricter. The coexistence of kilometer lengths of cables system in such a small space has increased the requirements in terms of electromagnetic (EM) shielding. Most of existing numerous methods for analyzing the shielding of cables and harnesses are limited in terms of computation speed, design process and in accuracies for the multiport systems analysis. Moreover, most of popular simulation and commercial tools are very expensive (for example with license cost can be more than 18K€). The use of commercial tools requires advanced skills and a lot of time to characterize the shielding of cables and harnesses. For example, with a simulation tool like HFSSR from ANSYSR , the computation time may cost approximately 3 hours to create a design model of a braided shields heath. Then, the computed results can be generated during an average simulation time of 20 minutes using a PC equipped with an Intel single-core processor RXeon RCPU E5-1620 v4 @ 3.50 GHz and 32 GB of physical RAM with 64-bit Windows 10. Most of available methods and techniques for characterizing the shielding of aeronautical cables and cable harnesses have shown their limits. For example, most of existing triaxial benches are particularly difficult to deploy for the transfer impedance measurements and they cannot operate beyond 100 MHz. The present PhD thesis aims to overcome these technical limits. Doing this, an original analytical method is developed for extracting S-parameters from multiport systems under fast computation speed and design process. An innovative methodology of EMC modelling was proposed. The knowledge of S-parameters is helpful to determine the broadband EM intrinsic parameters of the cabling as coaxial system. The developed analytical and semi-hybrid model is based on the unfamiliar formalism using tensorial analysis of networks (TAN) based on the Kron’s method. The model offers an outstanding possibility to analyze complex systems with deep knowledge of physical phenomenal behind the EM shielding. Thanks to the TAN formalism, an innovative method of circuit theory has been developed to determine the shielding efficiency (SE) of shielded cable. The feasibility of this multiport S-parameter approach was verified with the consideration of EM coupling between a nude cable constituting an internal conductor and a braided cable placed in parallel. More importantly, an advanced study of shielding efficiency (SE) with respect to the EM coupling configuration between a shielded coaxial cable and a loop probe is performed. Substantially, it was noteworthy that the TAN formalism provides an illuminating know-how on the theoretical, numerical and experimental analyses of cables and bundles EM shielding, and transfer impedances of the shielding sheath. Moreover, the TAN modelling effectiveness was confirmed with different applications with computation time which does not exceed milliseconds. Finally, the TAN model was also used to develop a SE characterization bench for tubular EM shielding structures up to 300 MHz. Emphatically, broadband SE and transfer impedance results in good correlation between 3D simulations and measurements were obtained

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Books on the topic "Field circuit coupling"

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Lightning-Induced Effects in Electrical and Telecommunication Systems. Institution of Engineering & Technology, 2020.

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Rakov, Vladimir A., and Yoshihiro Baba. Lightning-Induced Effects in Electrical and Telecommunication Systems. Institution of Engineering & Technology, 2020.

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Book chapters on the topic "Field circuit coupling"

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Kurz, Stefan, and Volker Rischmüller. "Field-Circuit Coupling by Means of the Woodbury Formula." In Scientific Computing in Electrical Engineering, 281–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-55872-6_30.

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Semba, Kouichi. "Emerging Ultrastrong Coupling Between Light and Matter Observed in Circuit Quantum Electrodynamics." In International Symposium on Mathematics, Quantum Theory, and Cryptography, 7–8. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5191-8_3.

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Abstract The strength of the coupling between an atom and a single electromagnetic field mode is defined as the ratio of the vacuum Rabi frequency to the Larmor frequency, and is determined by a small dimensionless physical constant, the fine structure constant $$\alpha =Z_{vac} / 2R_{K}$$. On the other hand, the quantum circuit including Josephson junctions behaving as artificial atoms and it can be coupled to the electromagnetic field with arbitrary strength (Devoret et al. 2007). Therefore, the circuit quantum electrodynamics (circuit QED) is extremely suitable for studying much stronger light-matter interaction.

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Kosmanis, Theodoros I. "Field – Circuit Coupling with the Time Domain Finite Difference Method for low Frequency Problems." In Studies in Computational Intelligence, 209–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-78490-6_25.

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Lombard, P. "On the Use and Interpretation of Electrical Values when Coupling Electric Circuit and Electromagnetic Field Equations." In Electric and Magnetic Fields, 119–22. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1961-4_25.

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Savov, V. N., E. S. Bogdanov, and Zh D. Georgiev. "Analysis of Induction Motors by Coupling of Transient Electromagnetic Field Equations, Circuit Equations and Motion Equations Using Finite Elements Method." In Electric and Magnetic Fields, 147–50. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1961-4_32.

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Frisk Kockum, Anton. "Quantum Optics with Giant Atoms—the First Five Years." In International Symposium on Mathematics, Quantum Theory, and Cryptography, 125–46. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5191-8_12.

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Abstract In quantum optics, it is common to assume that atoms can be approximated as point-like compared to the wavelength of the light they interact with. However, recent advances in experiments with artificial atoms built from superconducting circuits have shown that this assumption can be violated. Instead, these artificial atoms can couple to an electromagnetic field at multiple points, which are spaced wavelength distances apart. In this chapter, we present a survey of such systems, which we call giant atoms. The main novelty of giant atoms is that the multiple coupling points give rise to interference effects that are not present in quantum optics with ordinary, small atoms. We discuss both theoretical and experimental results for single and multiple giant atoms, and show how the interference effects can be used for interesting applications. We also give an outlook for this emerging field of quantum optics.

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"Coupling Field and Electrical Circuit Equations." In Electromagnetic Modeling by Finite Element Methods. CRC Press, 2003. http://dx.doi.org/10.1201/9780203911174.ch5.

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"Coupling of Field and Electrical Circuit Equations." In Electromagnetic Modeling by Finite Element Methods, 261–312. CRC Press, 2003. http://dx.doi.org/10.1201/9780203911174-11.

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Labiedh, Walid, Bessem Zitouna, Mohamed Tlig, and Jaleleddine Ben Hadj Slama. "Development of Generic Radiating Model for Rectangular Capacitors: Magnetic Near Fields Analysis and Modeling." In Recent Topics in Electromagnetic Compatibility. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.98894.

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This chapter deals with modeling the radiation from rectangular film capacitors as a power electronics component. The rectangular film capacitors are sources of electromagnetic radiation, where its characterization is crucial for electronic circuits EMC. Our study presents the analyses and modeling of the magnetic near field radiated by the plastic and the polyester capacitors. An electromagnetic inverse method is combined with an optimization method based on genetic algorithms to create a radiating equivalent model. A very good agreement is observed between the magnetic near field cartography measured above the studied structure and calculated using the developed model parameters. Finally, a generic radiating model is proposed for various types of rectangular film capacitors. The generic model is validated using the measurements on a rectangular capacitor. The obtained equivalent model can calculate the magnetic field at any near field zone and far field around the capacitors. Circuit designers can use the field distribution to optimize the placement of the capacitors on the printed circuit board to reduce their coupling and potential interaction with other equipment in the vicinity of the system.

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Al-Rizzo, Hussain, Ayman A. Isaac, Sulaiman Z. Tariq, and Samer Yahya. "Decoupled and Descattered Monopole MIMO Antenna Array with Orthogonal Radiation Patterns." In Modern Printed-Circuit Antennas. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.89630.

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This chapter introduces a novel design concept to reduce mutual coupling among closely-spaced antenna elements of a MIMO array. This design concept significantly reduces the complexity of traditional/existing design approaches such as metamaterials, defected ground plane structures, soft electromagnetic surfaces, parasitic elements, matching and decoupling networks using a simple, yet a novel design alternative. The approach is based on a planar single decoupling element, consisting of a rectangular metallic ring resonator printed on one face of an ungrounded substrate. The decoupling structure surrounds a two-element vertical monopole antenna array fed by a coplanar waveguide structure. The design is shown both by simulations and measurements to reduce the mutual coupling by at least 20 dB, maintain the impedance bandwidth over which S11, is less than −10 dB, and reduce the envelope correlation coefficient to below 0.001. The boresight of the far-field radiation patterns of the two vertical monopole wire antennas operating at 2.4 GHz and separated by 8 mm (λo/16), where λo is the free-space wavelength at 2.45 GHz, is shown to be orthogonal and inclined by 45° with respect to the horizontal (azimuthal) plane while maintaining the shape of the isolated single antenna element.

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Conference papers on the topic "Field circuit coupling"

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Wang, Yumei, Donglin Su, and Yunfeng Jia. "Field-circuit cooperated simulation of field-transmission line coupling." In 2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE). IEEE, 2009. http://dx.doi.org/10.1109/mape.2009.5355764.

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Coppoli, E. H. R., R. C. Mesquita, and R. S. Silva. "Field-circuit coupling with Element-Free Galerkin Method." In 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation (CEFC 2010). IEEE, 2010. http://dx.doi.org/10.1109/cefc.2010.5481411.

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Rundong Han, Tianzheng Wang, Qi Wang, and Xiaojing Li. "Research on circuit model of shunts based on field-circuit coupling method." In 2016 IEEE International Conference on Computational Electromagnetics (ICCEM). IEEE, 2016. http://dx.doi.org/10.1109/compem.2016.7588636.

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Fu, Wanran, Tiancheng Zhang, Lin Wang, Huaguang Bao, Yijun Sheng, and Dazhi Ding. "Field-circuit coupling simulation technology of microwave active circuit based on DGTD." In Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, edited by Shining Zhu, Qifeng Yu, Junhong Su, Lianghui Chen, and Junhao Chu. SPIE, 2022. http://dx.doi.org/10.1117/12.2624153.

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Longfeng Wang, Donglin Su, and Yi Wang. "Coupling of external electromagnetic field to Printed Circuit Board." In 2008 8th International Symposium on Antennas, Propagation and EM Theory. IEEE, 2008. http://dx.doi.org/10.1109/isape.2008.4735431.

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Fu, W. N., and Yiduan Chen. "A convenient algorithm for circuit parameters of eddy-current field based on circuit-field coupling formulation." In 2013 5th International Conference on Power Electronics Systems and Applications (PESA) New Energy Conversion for the 21st Century. IEEE, 2013. http://dx.doi.org/10.1109/pesa.2013.6828258.

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Yan, Chenguang, Peng Zhang, Ya Xu, and Jin Shu. "Modeling and Simulation of Transformer Inter-Turn Short-Circuit Faults Based on Field-Circuit Coupling." In 2022 IEEE 20th Biennial Conference on Electromagnetic Field Computation (CEFC). IEEE, 2022. http://dx.doi.org/10.1109/cefc55061.2022.9940726.

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Oganczova, I., R. Kado, Z. Kutchadze, G. Gabriadze, and R. Jobava. "Circuit Field Coupling Model of ESD Setup for Automotive Testing." In 2018 IEEE Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI). IEEE, 2018. http://dx.doi.org/10.1109/emcsi.2018.8495219.

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Huan Huan Zhang, Li Jun Jiang, He Ming Yao, Xun Wang Zhao, and Yu Zhang. "Hybrid field-circuit simulation by coupling DGTD with behavioral macromodel." In 2016 Progress in Electromagnetic Research Symposium (PIERS). IEEE, 2016. http://dx.doi.org/10.1109/piers.2016.7735057.

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Herold, Thomas, Enno Lange, and Kay Hameyer. "System simulation of a PMSM servo drive using the field-circuit coupling." In 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation (CEFC 2010). IEEE, 2010. http://dx.doi.org/10.1109/cefc.2010.5481697.

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