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Full Description
Transient electromagnetic phenomena can be treated in two ways, either using direct time domain modeling or frequency domain analysis applying the inverse Fourier transform. Both approaches are important since each has distinct advantages depending on the situation or the application. Offering a unique opportunity for academic researchers and engineers from industry to follow both the indirect and direct approach in parallel, this book starts by reviewing fundamental aspects of transient electromagnetics followed by the governing differential and integral equations. A special feature is the detailed treatment given to both the frequency and time domain integral equation techniques originally developed by the authors. The time independent Method of Moments and the time domain Finite Element Integral Equation Method are both fully presented. Various applications of practical interest such as modeling of wire antenna arrays, analysis of aboveground and underground cables, lightning effects analysis, analysis of transients on printed circuit boards (PCBs), and the study of the effects on the human body of exposure to transient electromagnetic radiation are also covered.
Contents
Introduction: Introduction; Time domain and frequency domain methods; Survey of electromagnetics analysis methods; Finite Element Integral Equation Method (FEIEM); The Method of Moments. The frequency domain - Method of Moments: Introduction; The Method of Moments for EM field; Frequency-time domain transformation; Application examples; Frequency sampling; Frequency sampling using adaptive integration; Application example; Frequency data from time domain waveform; Chapter summary. Time domain Finite Element Integral Equation Method: Time domain Hall n integral equation; Finite Element Integral Equation Method. Transient analysis of wire antennas: Introduction; Time domain approach; Wire transient numerical examples. Transient analysis of transmission lines: Time domain analysis; Frequency domain analysis. Transient analysis of lightning electromagnetics: Time domain model of the lightning channel; Lightning induced overvoltage along the line; Numerical results; Closure. Transients on printed circuit boards (PCBs): Introduction; Problems in PCB modelling; Summary. Interaction of the human body with electromagnetic fields: Introduction; Equivalent antenna model of the human body; Frequency domain modelling of the human body; The boundary element solution of the Pocklington equation; Time domain modelling of the human body; Solution of the time domain Hall n integral equation; Frequency domain examples; Time domain examples.
