Search Results for: electromagnetic field interaction with transmission lines

Electromagnetic Field Interaction With Transmission Lines

Electromagnetic Field Interaction with Transmission Lines PDF
Author: Farhad Rachidi
Publisher: WIT Press
Size: 19.88 MB
Format: PDF, ePub, Mobi
Category : Science
Languages : en
Pages : 259
View: 3880

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Electromagnetic Field Interaction With Transmission Lines Book Description

by Farhad Rachidi, Electromagnetic Field Interaction With Transmission Lines Books available in PDF, EPUB, Mobi Format. Download Electromagnetic Field Interaction With Transmission Lines books, The evaluation of electromagnetic field coupling to transmission lines is an important problem in electromagnetic compatibility. Traditionally, use is made of the TL approximation which applies to uniform transmission lines with electrically small cross-sectional dimensions, where the dominant mode of propagation is TEM. Antenna-mode currents and higher-order modes appearing at higher frequencies are neglected in TL theory. The use of the TL approximation has permitted to solve a large range of problems (e.g. lightning and EMP interaction with power lines). However, the continual increase in operating frequency of products and higher frequency sources of disturbances (such as UWB systems) makes that the TL basic assumptions are no longer acceptable for a certain number of applications. In the last decade or so, the generalization of classical TL theory to take into account high frequency effects has emerged as an important topic of study in electromagnetic compatibility. This effort resulted in the elaboration of the so-called 'generlized' or 'full-wave' TL theory, which incorporates high frequency radiation effects, while keeping the relative simplicity of TL equations. This book is organized in two main parts. Part I presents consolidated knowledge of classical transmission line theory and different field-to-transmission line coupling models. Part II presents different approaches developed to generalize TL Theory.


Locating Transient Disturbance Sources And Modelling Their Interaction With Transmission Lines

Locating Transient Disturbance Sources and Modelling Their Interaction with Transmission Lines PDF
Author: Gaspard Lugrin
Publisher:
Size: 71.42 MB
Format: PDF
Category :
Languages : en
Pages : 142
View: 157

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Locating Transient Disturbance Sources And Modelling Their Interaction With Transmission Lines Book Description

by Gaspard Lugrin, Locating Transient Disturbance Sources And Modelling Their Interaction With Transmission Lines Books available in PDF, EPUB, Mobi Format. Download Locating Transient Disturbance Sources And Modelling Their Interaction With Transmission Lines books, Mots-clés de l'auteur: electromagnetic Time Reversal (EMTR) ; enhanced transmission line model (ETL) ; high frequency electromagnetic field excitation ; lightning location systems (LLS) ; time-of-arrival (ToA) ; transmission line (TL) theory.


Interactions Of Lossy Samples In A Coaxial Transmission Line With An Electromagnetic Field

Interactions of Lossy Samples in a Coaxial Transmission Line with an Electromagnetic Field PDF
Author: Joseph Schaefer
Publisher:
Size: 71.92 MB
Format: PDF
Category : Dielectrics, Effect of radiation on
Languages : en
Pages : 252
View: 3283

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Interactions Of Lossy Samples In A Coaxial Transmission Line With An Electromagnetic Field Book Description

by Joseph Schaefer, Interactions Of Lossy Samples In A Coaxial Transmission Line With An Electromagnetic Field Books available in PDF, EPUB, Mobi Format. Download Interactions Of Lossy Samples In A Coaxial Transmission Line With An Electromagnetic Field books,


Radiating Nonuniform Transmission Line Systems And The Partial Element Equivalent Circuit Method

Radiating Nonuniform Transmission Line Systems and the Partial Element Equivalent Circuit Method PDF
Author: Prof. Dr. Juergen Nitsch
Publisher: John Wiley & Sons
Size: 68.25 MB
Format: PDF, Docs
Category : Science
Languages : en
Pages : 348
View: 7405

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Radiating Nonuniform Transmission Line Systems And The Partial Element Equivalent Circuit Method Book Description

by Prof. Dr. Juergen Nitsch, Radiating Nonuniform Transmission Line Systems And The Partial Element Equivalent Circuit Method Books available in PDF, EPUB, Mobi Format. Download Radiating Nonuniform Transmission Line Systems And The Partial Element Equivalent Circuit Method books, High frequencies of densely packed modern electronic equipment turn even the smallest piece of wire into a transmission line with signal retardation, dispersion, attenuation, and distortion. In electromagnetic environments with high-power microwave or ultra-wideband sources, transmission lines pick up noise currents generated by external electromagnetic fields. These are superimposed on essential signals, the lines acting not only as receiving antennas but radiating parts of the signal energy into the environment. This book is outstanding in its originality. While many textbooks rephrase that which has been written before, this book features: an accessible introduction to the fundamentals of electromagnetics; an explanation of the newest developments in transmission line theory, featuring the transmission line super theory developed by the authors; a unique exposition of the increasingly popular PEEC (partial element equivalent circuit) method, including recent research results. Both the Transmission Line Theory and the PEEC method are well suited to combine linear structures with circuit networks. For engineers, researchers, and graduate students, this text broadens insight into the basics of electrical engineering. It provides a deeper understanding of Maxwellian-circuit-like representations of multi-conductor transmission lines, justifies future research in this field.


Computational Methods In Electromagnetic Compatibility

Computational Methods in Electromagnetic Compatibility PDF
Author: Dragan Poljak
Publisher: John Wiley & Sons
Size: 67.69 MB
Format: PDF, ePub, Docs
Category : Science
Languages : en
Pages : 432
View: 4930

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Computational Methods In Electromagnetic Compatibility Book Description

by Dragan Poljak, Computational Methods In Electromagnetic Compatibility Books available in PDF, EPUB, Mobi Format. Download Computational Methods In Electromagnetic Compatibility books, Offers a comprehensive overview of the recent advances in the area of computational electromagnetics Computational Method in Electromagnetic Compatibility offers a review of the most recent advances in computational electromagnetics. The authors—noted experts in the field—examine similar problems by taking different approaches related to antenna theory models and transmission line methods. They discuss various solution methods related to boundary integral equation techniques and finite difference techniques. The topics covered are related to realistic antenna systems including antennas for air traffic control or ground penetrating radar antennas; grounding systems (such as grounding systems for wind turbines); biomedical applications of electromagnetic fields (such as transcranial magnetic stimulation); and much more. The text features a number of illustrative computational examples and a reference list at the end of each chapter. The book is grounded in a rigorous theoretical approach and offers mathematical details of the formulations and solution methods. This important text: Provides a trade-off between a highly efficient transmission line approach and antenna theory models providing analysis of high frequency and transient phenomena Contains the newest information on EMC analysis and design principles Discusses electromagnetic field coupling to thin wire configurations and modeling in bioelectromagnetics Written for engineering students, senior researchers and practicing electrical engineers, Computational Method in Electromagnetic Compatibility provides a valuable resource in the design of equipment working in a common electromagnetic environment.


Biological Effects And Dosimetry Of Static And Elf Electromagnetic Fields

Biological Effects and Dosimetry of Static and ELF Electromagnetic Fields PDF
Author: Martino Gandolfo
Publisher: Springer Science & Business Media
Size: 57.15 MB
Format: PDF, ePub
Category : Science
Languages : en
Pages : 697
View: 4742

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Biological Effects And Dosimetry Of Static And Elf Electromagnetic Fields Book Description

by Martino Gandolfo, Biological Effects And Dosimetry Of Static And Elf Electromagnetic Fields Books available in PDF, EPUB, Mobi Format. Download Biological Effects And Dosimetry Of Static And Elf Electromagnetic Fields books, The editors are pleased to present these Proceedings of the V Course of the "International School of Radiation Damage and Pro tection" of the "E. Majorana Centre", held in Erice (Italy) in No vember 1983. The lectures and discussions among leading scientists in various disciplines of physics, engineering, biophysics, cellular biology, physiology and medicine from 11 countries are included in this compilation. In this volume we have attempted to explore all aspects of the interaction of static and Extremely Low Frequency (ELF: 0-300 Hz) electric and magnetic fields with biological tissue, systems and whole organisms; we considered dosimetry and what is known or pre sumed concerning basic interactions, responses from the cellular and molecular level to the whole organism. Discussions of medical appli cations as well as epidemiologic investigations related to high volt age transmission were held with critiques of methodologies used and recommendations for future approaches. Consideration was also given to the necessity and principles of setting protection standards for man and the environment. We believe this is the first attempt to put all this informa tion together into one volume to provide perspective for understand ing the influence of static and ELF electric and magnetic fields on biological systems. We hope our attempts were successful. Martino Grandolfo Sol M. Michaelson Alessandro Rindi v ACKNOWLEDGEMENTS This is the Fifth Course of the International School of Radia tion Damage and Protection of the "Ettore Majorana" Centre for Sci entific Culture directed by Professor A. Zichichi.


Human Interaction With Electromagnetic Fields

Human Interaction with Electromagnetic Fields PDF
Author: Dragan Poljak
Publisher: Academic Press
Size: 35.58 MB
Format: PDF, ePub, Docs
Category : Science
Languages : en
Pages : 280
View: 7181

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Human Interaction With Electromagnetic Fields Book Description

by Dragan Poljak, Human Interaction With Electromagnetic Fields Books available in PDF, EPUB, Mobi Format. Download Human Interaction With Electromagnetic Fields books, Human Interaction with Electromagnetic Fields: Computational Models in Dosimetry presents some highly rigorous and sophisticated integral equation techniques from computational electromagnetics (CEM), along with practical techniques for the calculation and measurement of internal dosimetry. Theory is accompanied by numerical modeling algorithms and illustrative computational examples that range from academic to full real-world scenarios. Covers both deterministic and stochastic modeling Presents implementations of integral equation approaches, overcoming the limitations of the FDTD approach Presents various biomedical applications


Hybrid Wireless Power Line Communications For Indoor Iot Networks

Hybrid Wireless Power Line Communications for Indoor IoT Networks PDF
Author: Xu Zhu
Publisher: Artech House
Size: 65.84 MB
Format: PDF, ePub, Docs
Category : Technology & Engineering
Languages : en
Pages : 240
View: 145

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Hybrid Wireless Power Line Communications For Indoor Iot Networks Book Description

by Xu Zhu, Hybrid Wireless Power Line Communications For Indoor Iot Networks Books available in PDF, EPUB, Mobi Format. Download Hybrid Wireless Power Line Communications For Indoor Iot Networks books, This exciting resource covers the fundamentals of wireless and PLC technologies. Different types of wireless and PLC technologies used for indoor IoT applications are described. The channel models for both wireless and power line communications are introduced, highlighting the main challenges for these types of communications inside the indoor environment. The book explores the hybrid technologies with television white space (TVWS), very high frequency (VHF) wireless technology, and broadband PLC (BPLC) for indoor high speed IoT networks. A TVWS standardized BPLC system is proposed, which integrates the requirement of primary user sensing and the permissible transmission power spectral density (PSD) for TVWS users into BPLC standard, regarding VHF band access. The hybrid ultra-high frequency (UHF) wireless-powerline sensor networks with a focus on enlarging the network lifetime via cross-layer optimization is presented. Hybrid video sensor networks (HVSNs) with high data rate requirement are explored. Through the joint design of video encoding rate, aggregate power consumption, channel access control, along with link rate allocation, a distributed algorithm is developed, which divides the computational burden among all nodes with much lower communication overhead. The effectiveness of the cross-layer designs are evaluated through extensive simulation results.


Electromagnetic Fields In Biological Systems

Electromagnetic Fields in Biological Systems PDF
Author: James C. Lin
Publisher: CRC Press
Size: 72.36 MB
Format: PDF, ePub
Category : Medical
Languages : en
Pages : 458
View: 6746

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Electromagnetic Fields In Biological Systems Book Description

by James C. Lin, Electromagnetic Fields In Biological Systems Books available in PDF, EPUB, Mobi Format. Download Electromagnetic Fields In Biological Systems books, Spanning static fields to terahertz waves, this volume explores the range of consequences electromagnetic fields have on the human body. Topics discussed include essential interactions and field coupling phenomena; electric field interactions in cells, focusing on ultrashort, pulsed high-intensity fields; dosimetry or coupling of ELF fields into biological systems; and the historical developments and recent trends in numerical dosimetry. It also discusses mobile communication devices and the dosimetry of RF radiation into the human body, exposure and dosimetry associated with MRI and spectroscopy, and available data on the interaction of terahertz radiation with biological tissues, cells, organelles, and molecules.