Electromagnetic Pulse Simulations Using Finite-Difference Time-Domain Method

Length: 352 pages
Edition: 1
Language: English
Publisher: Wiley
Publication Date: 2021-04-13
ISBN-10: 1119526175
ISBN-13: 9781119526179
Sales Rank: #19829084 (See Top 100 Books)

Electromagnetic Pulse Simulations Using Finite-Difference Time-Domain Method

Discover the utility of the FDTD approach to solving electromagnetic problems with this powerful new resource

Electromagnetic Pulse Simulations Using Finite-Difference Time-Domain Method delivers a comprehensive overview of the generation and propagation of ultra-wideband electromagnetic pulses. The book provides a broad cross-section of studies of electromagnetic waves and their propagation in free space, dielectric media, complex media, and within guiding structures, like waveguide lines, transmission lines, and antennae.

The distinguished author offers readers a fresh new approach for analyzing electromagnetic modes for pulsed electromagnetic systems designed to improve the reader’s understanding of the electromagnetic modes responsible for radiating far-fields. The book also provides a wide variety of computer programs, data analysis techniques, and visualization tools with state-of-the-art packages in MATLAB^® and Octave.

Following an introduction and clarification of basic electromagnetics and the frequency and time domain approach, the book delivers explanations of different numerical methods frequently used in computational electromagnetics and the necessity for the time domain treatment. In addition to a discussion of the Finite-difference Time-domain (FDTD) approach, readers will also enjoy:

A thorough introduction to electromagnetic pulses (EMPs) and basic electromagnetics, including common applications of electromagnetics and EMP coupling and its effects
An exploration of time and frequency domain analysis in electromagnetics, including Maxwell’s equations and their practical implications
A discussion of electromagnetic waves and propagation, including waves in free space, dielectric mediums, complex mediums, and guiding structures
A treatment of computational electromagnetics, including an explanation of why we need modeling and simulations

Perfect for undergraduate and graduate students taking courses in physics and electrical and electronic engineering, Electromagnetic Pulse Simulations Using Finite-Difference Time-Domain Method will also earn a place in the libraries of scientists and engineers working in electromagnetic research, RF and microwave design, and electromagnetic interference.

Cover
Table of Contents
Title Page
Copyright
Dedication
Acknowledgments
Preface
1 Electromagnetic Pulse
    1.1 Sources of EMP
    1.2 EMP Coupling and its Effects
    1.3 EMP Simulators
    1.4 Review of Earlier Work
    1.5 Overview of this Book
    1.6 Summary
2 Time and Frequency Domain Analysis
    2.1 Introduction
    2.2 Nuclear Electromagnetic Pulse
    2.3 Summary
3 Simulations Using FDTD Method
    3.1 Introduction
    3.2 Need for FDTD Analysis of an EMP Simulator
    3.3 Maxwell's Equations and the Yee Algorithm
    3.4 FDTD Implementation
    3.5 Numerical Issues
    3.6 Summary
4 Electromagnetic Pulse in Free Space and Material Media
    4.1 Introduction
    4.2 Input Waveform
    4.3 One‐dimension Approach
    4.4 Summary
    Exercises
5 Simulation of Capacitor Bank
    5.1 Introduction
    5.2 Details of Model
    5.3 Results and Discussion
    5.4 Cross‐check of FDTD Results Using Method‐of‐Moments
    5.5 Effect of Boundary Condition
    5.6 Summary
    Exercises
6 Bounded Wave Simulator for Electromagnetic Pulses
    6.1 Introduction
    6.2 Geometry and Computational Model
    6.3 Validation of TEM Structure Geometry
    6.4 FDTD Model of Closing Switch
    6.5 Choice of Distance to Domain Boundary
    6.6 Electric Field within TEM Structure
    6.7 Flow of Current through Simulator Plates
    6.8 Prepulse
    6.9 Effect of Test Object
    6.10 Validation Checks for FDTD Analysis
    6.11 Summary
    Exercises
7 Electromagnetic Modes Inside Bounded Wave Simulators
    7.1 Introduction
    7.2 Details of Model
    7.3 Modal Analysis of Simulator Without Test Object
    7.4 Modal Analysis of Simulator With Test Object
    7.5 Physical Interpretation for Electric Field Increase
    7.6 Summary
    Exercises
8 Parametric Study of Radiation Leakage from a Bounded‐Wave Simulator
    8.1 Introduction
    8.2 Details of Computational Model
    8.3 Sensitivity to Length of Parallel‐plate Extension
    8.4 Sensitivity to Angle Between Tapered Plates
    8.5 Effect of Type of Termination
    8.6 Sensitivity to Closure Time of Switch
    8.7 Effect of Test Object
    8.8 Physical Interpretation
    8.9 Summary
    Exercises
9 Modal Perspective of Radiation Leakage from a Bounded‐Wave Simulator
    9.1 Introduction
    9.2 Calculation Procedure
    9.3 Effect of Angle of Inclination Between Tapered Plates
    9.4 Effect of Pulse Compression
    9.5 Summary
    Exercises
10 Spatial Mode Filter for Reducing Radiation Leakage
    10.1 Introduction
    10.2 Suppression of Higher Order Modes
    10.3 Summary
    Exercises
11 EMP Interaction with Biological Tissues
    11.1 Introduction
    11.2 Model Description
    11.3 Results and Discussion
    11.4 Summary
    Exercises
12 FDTD Computer Program
    12.1 Introduction
    12.2 Computer Code Details
    12.3 Sample Output
    12.4 Summary
References
Index
End User License Agreement

Electromagnetism