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ELECTROMAGNETIC WAVES AND TRANSMISSION LINES

ELECTROMAGNETIC WAVES AND TRANSMISSION LINES
Author: R. S. RAO
Publisher: PHI Learning Pvt. Ltd.
Total Pages: 592
Release: 2012-01-17
Genre: Technology & Engineering
ISBN: 8120345150
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This systematic and well-written book provides an in-depth analysis of all the major areas of the subject such as fields, waves and lines. It is written in a simple and an easy-to-understand language. Beginning with a discussion on vector calculus, the book elaborately explains electrostatics, including the concepts of electric force and field intensity, electric displacement, Gauss law, conductors, dielectrics and capacitors. This is followed by a detailed study of magnetostatics, covering Biot–Savart law, Lorentz’s force law and Ampere’s circuital law. Then, it discusses Maxwell’s equations that describe the time-varying fields and the wave theory which is the basis of radiation and wireless communications. Finally, the book gives a fair treatment to transmission line theory, which is a foundation course in mechanical engineering. The text is well-supported by a large number of solved and unsolved problems to enhance the analytical skill of the students. The problems are framed to test the conceptual understanding of the students. It also includes plenty of objective type questions with answers. It is intended as a textbook for the undergraduate students of Electrical and Electronics Engineering and Electronics and Communication Engineering for their course on Electromagnetic Waves and Transmission Lines.

Electromagnetic Field Interaction with Transmission Lines

Electromagnetic Field Interaction with Transmission Lines
Author: Farhad Rachidi
Publisher: WIT Press
Total Pages: 289
Release: 2008
Genre: Science
ISBN: 1845640632
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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.

Electromagnetics and Transmission Lines

Electromagnetics and Transmission Lines
Author: Uday A. Bakshi
Publisher: Technical Publications
Total Pages: 448
Release: 2020-12-01
Genre: Technology & Engineering
ISBN: 9333223789
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The book covers all the aspects of Electromagnetics and Transmission Lines for undergraduate course. The book provides comprehensive coverage of vector analysis, Coulomb's law, electric field intensity, flux and Gauss's law, conductors, dielectrics, capacitance, Poisson's and Laplace's equations, magnetostatics, electrodynamic fields, Maxwell's equations, Poynting theorem, transmission lines and uniform plane waves. The knowledge of vector analysis is the base of electromagnetic engineering. Hence book starts with the discussion of vector analysis. Then it introduces the basic concepts of electrostatics such as Coulomb's law, electric field intensity due to various charge distributions, electric flux, electric flux density, Gauss's law and divergence. The book continues to explain the concept of elementary work done, conservative property, electric potential and potential difference and the energy in the electrostatic fields. The detailed discussion of current density, continuity equation, boundary conditions and various types of capacitors is also included in the book. The book provides the discussion of Poisson's and Laplace's equations and their use in variety of practical applications. The chapter on magnetostatics incorporates the explanation of Biot-Savart's law, Ampere's circuital law and its applications, concept of curl scalar and vector magnetic potentials. The book also includes the concept of force on a moving charge, force on differential current element and magnetic boundary conditions. The book covers all the details of Faraday's laws, time varying fields, Maxwell's equations and Poynting theorem. The book covers the transmission line parameters in detail along with reflection on a line, reflection loss and reflection factor. The chapter on transmission line at radio frequency includes parameters of line at high frequency, standing waves, standing wave ratio and Smith chart. Finally, the book provides the detailed study of uniform plane waves including their propagation in free space, perfect dielectrics, lossy dielectrics and good conductors. The book uses plain and lucid language to explain each topic. The book provides the logical method of explaining the various complicated topics and stepwise methods to make the understanding easy. Each chapter is well supported with necessary illustrations, self explanatory diagrams and large number of solved problems. The book explains the philosophy of the subject which makes the understanding of the concepts very clear and makes the subject more interesting.

The Propagation of Electromagnetic Waves in Multiconductor Transmission Lines

The Propagation of Electromagnetic Waves in Multiconductor Transmission Lines
Author: P. I. Kuznetsov
Publisher: Elsevier
Total Pages: 206
Release: 2013-10-22
Genre: Technology & Engineering
ISBN: 1483155528
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The Propagation of Electromagnetic Waves in Multiconductor Transmission Lines presents the study of the problems relating to the propagation of electromagnetic waves along multi-conductor transmission line. This book examines the theoretical investigations into the propagation of electromagnetic waves in transmission line systems involving two or more conductors. Organized into 12 chapters, this book begins with an overview of the rigorous method based on Maxwell's equations for solving the basic problem in the theory of the steady-state propagation of electromagnetic waves in a multi-conductor system. This text then examines the significant practical problem of determining the electromagnetic fields of symmetrical and non-symmetrical two-wire lines in free space. Other chapters consider the methods of calculating the parameters of non-uniform lines. This book discusses as well the problem of transient electromagnetic processes in a multi-conductor system. The final chapter deals with the asymptotic representation of cylindrical functions of two-imaginary variables. Electrical engineers will find this book useful.

Electromagnetic Field Theory and Transmission Lines

Electromagnetic Field Theory and Transmission Lines
Author: Raju, G. S. N.
Publisher: Pearson Education India
Total Pages: 606
Release: 2006
Genre: Electromagnetic fields
ISBN: 813179993X
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Electromagnetic Field Theory and Transmission Lines is ideal for a single semester, first course on Electromagnetic Field Theory (EMFT) at the undergraduate level. This book uses diagrammatic representations and real life examples to explain the fu

Wideband RF Technologies and Antennas in Microwave Frequencies

Wideband RF Technologies and Antennas in Microwave Frequencies
Author: Dr. Albert Sabban
Publisher: John Wiley & Sons
Total Pages: 464
Release: 2016-06-10
Genre: Technology & Engineering
ISBN: 1119048664
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Presents wideband RF technologies and antennas in the microwave band and millimeter-wave band This book provides an up-to-date introduction to the technologies, design, and test procedures of RF components and systems at microwave frequencies. The book begins with a review of the elementary electromagnetics and antenna topics needed for students and engineers with no basic background in electromagnetic and antenna theory. These introductory chapters will allow readers to study and understand the basic design principles and features of RF and communication systems for communications and medical applications. After this introduction, the author examines MIC, MMIC, MEMS, and LTCC technologies. The text will also present information on meta-materials, design of microwave and mm wave systems, along with a look at microwave and mm wave receivers, transmitters and antennas. Discusses printed antennas for wireless communication systems and wearable antennas for communications and medical applications Presents design considerations with both computed and measured results of RF communication modules and CAD tools Includes end-of-chapter problems and exercises Wideband RF Technologies and Antennas in Microwave Frequencies is designed to help electrical engineers and undergraduate students to understand basic communication and RF systems definition, electromagnetic and antennas theory and fundamentals with minimum integral and differential equations. Albert Sabban, PhD, is a Senior Researcher and Lecturer at Ort Braude College Karmiel Israel. Dr. Sabban was RF and antenna specialist at communication and Biomedical Hi-tech Companies. He designed wearable compact antennas to medical systems. From 1976 to 2007, Dr. Albert Sabban worked as a senior R&D scientist and project leader in RAFAEL.

Electromagnetic Field Theory and Transmission Lines

Electromagnetic Field Theory and Transmission Lines
Author: G. S. N. Raju
Publisher: Pearson Education India
Total Pages: 610
Release: 2006
Genre: Electromagnetic fields
ISBN: 9788131701713
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Electromagnetic Field Theory and Transmission Lines is an ideal textbook for a single semester, first course on Electromagnetic Field Theory (EMFT) at the undergraduate level. This book uses plain and simple English, diagrammatic representations and real life examples to explain the fundamental concepts, notations, representation and principles that govern the field of EMFT. The chapters cover every aspect of EMFT from electrostatics to advanced topics dealing with Electromagnetic Interference (EMI)/Electromagnetic Compatibility (EMC), EMC standards and design methods for EMC. Careful and deta.

Electromagnetic Analysis Using Transmission Line Variables

Electromagnetic Analysis Using Transmission Line Variables
Author: Maurice Weiner
Publisher: World Scientific
Total Pages: 536
Release: 2001
Genre: Science
ISBN: 9789812810472
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V. Boundary conditions and dispersion. 5.1. Dielectric-dielectric interface. Node coupling: nearest node and multi-coupled node approximations. 5.2. Nearest nodes for ID interface. 5.3. Nearest nodes at 2D interface. 5.4. Truncated cell and oblique interface. 5.5. Single index cell notation. 5.6. Simplified iteration neglecting the nearest node approximation. 5.7. Non-uniform dielectric. Use of cluster cells. Other boundary conditions. 5.8. Dielectric- open circuit interface. 5.9. Dielectric - conductor interface. 5.10. Input/output conditions. 5.11. Composite transmission line. 5.12. Determination of initial static field by TLM method. 5.13. Time varying source voltage and antenna simulation. Dispersion. 5.14. Dispersion sources. 5.15. Dispersion example. 5.16. Propagation velocity in terms of wave number. 5.17. Dispersive properties of node resistance. 5.18. Node resistance in terms of wave number. 5.19. Anomalous dispersion. Incorporation of dispersion into TLM formulation. 5.20. Dispersion approximations. 5.21. Outline of dispersion calculation using the TLM method. 5.22. One dimensional dispersion iteration. 5.23. Initial conditions with dispersion present. 5.24. Stability of initial profiles with dispersion present. 5.25. Replacement of non-uniform field in cell with effective uniform field -- VI. Cell discharge properties and integration of transport phenomena into the TLM matrix. 6.1. Charge transfer between cells. 6.2. Relationship between field and cell charge. 6.3. Dependence of conductivity on carrier properties. Integration of carrier transport using TLM notation. Changes in cell occupancy and its effect on TLM iteration. 6.4. General continuity equations. 6.5. Carrier generation due to light activation. 6.6. Carrier generation due to avalanching: identical hole and electron drift velocities. 6.7. Avalanching with differing hole and electron drift velocities. 6.8. Two step generation process. 6.9. Recombination. 6.10. Limitations of simple exponential recovery model. 6.11. Carrier drift. 6.12. Cell charge iteraction.equivalence of drift and inter-cell currents. 6.13. Carrier diffusion. 6.14. Frequency of transport iteration. 6.15. Total contribution to changes in carrier cell occupancy -- VII. Description of TLM iteration. 7.1. Specification of geometry. 7.2. Description of inputs and TLM iteration outline. 7.3. Output format. Output simulation data. 7.4. Conditions during simulation. 7.5. Behavior during charge-up.establishment of static field profile. 7.6. Node resistance R(n,m) during activation. 7.7. Output pulse when semiconductor is activated. 7.8. Node recovery and its effect on output pulse. 7.9. Steady state and transient field profiles. 7.10. Partial activation of nodes and effect on profiles and output. 7.11. Cell charge following recovery. 7.12. Role ofTLM waves at charged boundary. 7.13. Comparison of possible boundary conditions at the semiconductor/dielectric interface. 7.14. Simulation results for boundary with non-integral nearest nodes. 7.15. Comparison of output with and without matched input /output lines. 7.16. Simulation of plane wave effects. Effect of alternating input -- VIII. Spice solutions. 8.1. Photoconductive switch. 8.2. Traveling wave Marx generator. 8.3. Traveling Marx wave in a layered dielectric. 8.4. Simulation of a traveling Marx wave in a layered dielectric. Pulse transformation and generation using non-uniform transmission lines. 8.5. Use of cell chain to simulate pulse transformer. 8.6. Pulse transformer simulation results. 8.7. Pulse sources using non-uniform TLM lines (switch at output). 8.8. Radial pulse source (switch at output). 8.9. Pulse sources with gain (PFXL sources). Darlington pulser. 8.10. TLM formulation of Darlington pulser. 8.11. SPICE simulation of Lossy Darlington Pulser.

Electromagnetics, Volume 1 (BETA)

Electromagnetics, Volume 1 (BETA)
Author: Steven W. Ellingson
Publisher: VT Publishing
Total Pages: 208
Release: 2018-01-03
Genre: Electrical engineering
ISBN: 9780997920123
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Electromagnetics (CC BY-SA 4.0) is an open textbook intended to serve as a primary textbook for a one-semester first course in undergraduate engineering electromagnetics, and includes:electric and magnetic fields; electromagnetic properties of materials; electromagnetic waves; and devices that operate according to associated electromagnetic principles including resistors,capacitors, inductors, transformers, generators, and transmission lines. This book employs the "transmission lines first" approach, in which transmission lines are introduced using a lumped-element equivalent circuit model fora differential length of transmission line, leading to one-dimensional wave equations for voltage and current. This book is intended for electrical engineering students in the third year of a bachelor of science degree program. A free electronic version of this book is available at: https://doi.org/10.7294/W4WQ01ZM

Electromagnetic Waveguides and Transmission Lines

Electromagnetic Waveguides and Transmission Lines
Author: F. Olyslager
Publisher: OUP Oxford
Total Pages: 242
Release: 1999-05-27
Genre: Technology & Engineering
ISBN: 0191591270
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This monograph deals with the theoretical aspects of the circuit modelling of high-frequency electromagnetic structures using the Lorentz reciprocity theorem. This is the first book to cover the generalization from closed structures to open-boundary waveguides and circuit structures. The author has developed a new way to represent a general waveguide by transmission lines: and was awarded the Microwave Prize of the IEEE for this work. The first part of the book discusses the construction of transmission line models for waveguide structures. Then the incidence of external electromagnetic waves on high-frequency structures is studied, and finally the concepts derived in the earlier parts of the book are generalized to reciprocal and non-reciprocal anisotropic, bi-isotropic, and bianisotropic materials.