# Engineering Electromagnetics

Springer Science & Business Media, Aug 1, 2007 - Technology & Engineering - 1236 pages

The applications involving electromagnetism are so pervasive that it is difficult to estimate their contribution to modern life: generation and transmission of electric energy, electric motors and actuators, radio, television, magnetic information storage, and even the mundane little magnet used to hold papers to the refrigerator all use electromagnetic fields.

This text not only provides students with a good theoretical understanding of electromagnetic field equations but it also treats a large number of application. No topic is presented unless it is directly applicable to engineering design or unless it is needed for the understanding of another topic. Included in this new edition are more than 400 examples and exercises, exercising every topic in the book, 600 end-of-chapter problems, many of them applications or simplified applications. A new chapter introducing numerical methods into the electromagnetic curriculum discusses the finite element, finite difference and moment methods.

The book is a comprehensive two-semester textbook. It is written in simple terms with all details of derivations included and all steps in solutions listed. It requires little beyond basic calculus and can be used for self study. The wealth of examples and alternative explanations makes it very approachable by students.

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this book is very important

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Excellent book for reviewing EMFT concepts

### Contents

 Vector Algebra 1 12 SCALARS AND VECTORS 2 13 PRODUCTS OF VECTORS 13 14 DEFINITION OF FIELDS 25 15 SYSTEMS OF COORDINATES 29 16 POSITION VECTORS 47 Vector Calculus 57 22 INTEGRATION OF SCALAR AND VECTOR FUNCTIONS 58
 112 MAXWELLS EQUATIONS 689 113 TIMEDEPENDENT POTENTIAL FUNCTIONS 697 114 INTERFACE CONDITIONS FOR THE ELECTROMAGNETIC FIELD 703 115 PARTICULAR FORMS OF MAXWELLS EQUATIONS 711 Electromagnetic Waves and Propagation 725 123 THE ELECTROMAGNETIC WAVE EQUATION AND ITS SOLUTION 731 124 THE ELECTROMAGNETIC SPECTRUM 748 125 THE POYNTING THEOREM AND ELECTROMAGNETIC POWER DENSITY 750

 23 DIFFERENTIATION OF SCALAR AND VECTOR FUNCTIONS 73 24 CONSERVATIVE AND NONCONSERVATIVE FIELDS 107 25 NULL VECTOR IDENTITIES AND CLASSIFICATION OF VECTOR FIELDS 108 Coulombs Law and the Electric Field 121 32 CHARGE AND CHARGE DENSITY 122 33 COULOMBS LAW 126 34 THE ELECTRIC FIELD INTENSITY 132 35 THE ELECTRIC FLUX DENSITY 155 36 APPLICATIONS 157 37 EXPERIMENTS 163 Gausss Law and the Electric Potential 173 43 GAUSSS LAW 178 44 THE ELECTRIC POTENTIAL 190 45 MATERIALS IN THE ELECTRIC FIELD 206 46 INTERFACE CONDITIONS 223 POINT AND DISTRIBUTED CHARGES 244 49 APPLICATIONS 259 410 EXPERIMENTS 264 Boundary Value Problems Analytic Methods of Solution 281 52 POISSONS EQUATION FOR THE ELECTROSTATIC FIELD 282 53 LAPLACES EQUATION FOR THE ELECTROSTATIC FIELD 283 54 SOLUTION METHODS 284 THE METHOD OF IMAGES 338 The Steady Electric Current 415 72 CONSERVATION OF CHARGE 416 73 CONDUCTORS DIELECTRICS AND LOSSY DIELECTRICS 417 74 OHMS LAW 426 75 POWER DISSIPATION AND JOULES LAW 431 76 THE CONTINUITY EQUATION AND KIRCHHOFFS CURRENT LAW 435 77 CURRENT DENSITY AS A FIELD 441 78 INTERFACE CONDITIONS FOR CURRENT DENSITY 447 79 APPLICATIONS 452 710 EXPERIMENTS 457 The Static Magnetic Field 469 82 THE MAGNETIC FIELD MAGNETIC FIELD INTENSITY AND MAGNETIC FLUX DENSITY 470 83 THE BIOTSAVART LAW 474 84 AMPERES LAW 484 85 MAGNETIC FLUX DENSITY AND MAGNETIC FLUX 491 86 POSTULATES OF THE STATIC MAGNETIC FIELD 494 87 POTENTIAL FUNCTIONS 497 88 APPLICATIONS 509 89 EXPERIMENTS 510 Magnetic Materials and Properties 523 92 MAGNETIC PROPERTIES OF MATERIALS 526 93 MAGNETIC INTERFACE CONDITIONS 551 94 INDUCTANCE AND INDUCTORS 557 95 ENERGY STORED IN THE MAGNETIC FIELD 572 96 MAGNETIC CIRCUITS 584 97 FORCES IN THE MAGNETIC FIELD 591 98 TORQUE 604 99 APPLICATIONS 607 910 EXPERIMENTS 611 Faradays Law and Induction 629 102 FARADAYS LAW 631 103 LENZS LAW 633 THE DC GENERATOR 634 105 INDUCED EMF DUE TO TRANSFORMER ACTION 641 106 COMBINED MOTIONAL AND TRANSFORMER ACTION ELECTROMOTIVE FORCE 643 107 THE TRANSFORMER 652 108 EDDY CURRENTS 661 109 APPLICATIONS 666 1010 EXPERIMENTS 673 Maxwells Equations 687
 126 THE COMPLEX POYNTING VECTOR 760 127 PROPAGATION OF PLANE WAVES IN MATERIALS 764 128 POLARIZATION OF PLANE WAVES 786 129 APPLICATIONS 793 1210 EXPERIMENTS 795 Reflection and Transmission of Plane Waves 807 NORMAL INCIDENCE 809 OBLIQUE INCIDENCE ON A CONDUCTOR 831 134 OBLIQUE INCIDENCE ON DIELECTRIC INTERFACES 839 135 REFLECTION AND TRANSMISSION FOR LAYERED MATERIALS AT NORMAL INCIDENCE 855 136 APPLICATIONS 861 137 EXPERIMENTS 865 Theory of Transmission Lines 877 142 THE TRANSMISSION LINE 881 143 TRANSMISSION LINE PARAMETERS 882 144 THE TRANSMISSION LINE EQUATIONS 890 145 TYPES OF TRANSMISSION LINES 896 146 THE FIELD APPROACH TO TRANSMISSION LINES 905 147 FINITE TRANSMISSION LINES 910 148 POWER RELATIONS ON A GENERAL TRANSMISSION LINE 929 149 RESONANT TRANSMISSION LINE CIRCUITS 932 1410 APPLICATIONS 937 1411 EXPERIMENT 940 The Smith Chart Impedance Matching and Transmission Line Circuits 955 152 THE SMITH CHART 956 153 THE SMITH CHART AS AN ADMITTANCE CHART 966 154 IMPEDANCE MATCHING AND THE SMITH CHART 969 155 QUARTERWAVELENGTH TRANSFORMER MATCHING 986 156 EXPERIMENTS 990 Transients on Transmission Lines 999 162 PROPAGATION OF NARROW PULSES ON FINITE LOSSLESS TRANSMISSION LINES 1000 163 PROPAGATION OF NARROW PULSES ON FINITE DISTORTIONLESS TRANSMISSION LINES 1004 LONG PULSES 1009 FINITELENGTH PULSES 1017 166 REFLECTIONS FROM DISCONTINUITIES 1020 167 TRANSIENTS ON LINES WITH REACTIVE LOADING 1025 168 INITIAL CONDITIONS ON TRANSMISSION LINES 1031 169 EXPERIMENTS 1035 Waveguides and Resonators 1043 172 THE CONCEPT OF A WAVEGUIDE 1044 173 TRANSVERSE ELECTROMAGNETIC TRANSVERSE ELECTRIC AND TRANSVERSE MAGNETIC WAVES 1045 174 TE PROPAGATION IN PARALLEL PLATE WAVEGUIDES 1057 175 TM PROPAGATION IN PARALLEL PLATE WAVEGUIDES 1068 176 TEM WAVES IN PARALLEL PLATE WAVEGUIDES 1074 177 RECTANGULAR WAVEGUIDES 1075 178 OTHER WAVEGUIDES 1099 1710 ENERGY RELATIONS IN A CAVITY RESONATOR 1107 1711 QUALITY FACTOR OF A CAVITY RESONATOR 1108 Antennas and Electromagnetic Radiation 1121 182 ELECTROMAGNETIC RADIATION AND RADIATION SAFETY 1122 183 ANTENNAS 1123 184 THE ELECTRIC DIPOLE 1124 185 PROPERTIES OF ANTENNAS 1135 187 PRACTICAL ANTENNAS 1152 188 ANTENNA ARRAYS 1167 189 RECIPROCITY AND RECEIVING ANTENNAS 1182 1810 EFFECTIVE APERTURE 1184 1811 THE RADAR 1190 1812 OTHER ANTENNAS 1195 Answers 1205 Index 1217 Copyright

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Nathan Ida is the Distinguished Professor of Electrical and Computer Engineering at the University of Akron. He is the author of five previous books in the area of Electromagnetics and over 250 journal and conference papers. A Fellow of the IEEE and the American Society for non-destructive testing, he is active in numerous conferences and symposia that emphasize interdisciplinary research and practical applications.