Table Of ContentLIST OF APPLICATIONS AND NATURAL PHENOMENA
Plasma 37 Measurement of wavelength 146
Radio waves from the sun 45 Slotted coaxial lines 147
Solar energy 47 Impedance matching by shunt
Extraterrestrial sources 47 . admittance, 181
Remote sensing 47 Microwave inductors and
'adio
interferences from capacitors 182
thunderstorms 48 Digital-to-analog converter 190
Human exposure to RF electromagnetic Electromagnetic radiation from cellular
radiation 53 telephones 222
Reception ofradio and television Josephson junctions 245
signals 60 Phased array 245
Eye detection of polarized light 61 Very long baseline arrays 251
Glareless headlight system for Scattering oflight 264
automobiles 61 Why the sky is blue 265
Stereoscopic pictures with polarized Holography 268
light 62 Red shift 278
Communication system using orthogonal Doppler frequency shift of a wave
polarizations 62 reflected from a moving target 279
Radio communication between Doppler radar 281
submarines 69 Frequency-modulated continuous-wave
Microwave ovens 72 Doppler radar 282
The tails of comets 76 How to produce a circularly polarized
Brewster window 97 light 284
Reflection from the ionosphere 101 Dichroism and polarized
Reflection ofelectromagnetic waves from sunglasses 286
skin 102 Liquid crystals 286
Fabry-Perot resonators 106 Lightning rod 318
Standing wave in front of a dielectric The Van de Graaff generator 323
medium 107 Triboelectricity 325
Microwave reflectors 109 Electrostatic separation 336
Reflection by grating ofparallel Electric corona 339
wires 111 Electrostatic filter 341
Microstrips or striplines 124 Electrostatic paint spraying 342
Ionosphere-earth waveguide 125 Xerography 343
Project Seafarer 127 Laser printer 344
X-band waveguide 131 Cathode ray tube 348
Frequency meter 137 Ion thruster 350
Optical fibers 142 Ink-jet printer 353
Dielectric breakdown 364 Magnetic-disk memory 505
Electrostatic adhesive surface 372 The sea floor as a magnetic
Electrophoresis 373 memory 507
Electric fields due to power lines 404 Thermomagnetic copying 508
Well logging 437 Condenser microphones 530
Magnetic fields due to power Rail guns 549
lines 459 Induction heating 552
Isotope separation 465 Nondestructive evaluation of
Cyclotron 466 pipes 555
Hall effect 468 Betatron s 562
Effect ofearth's magnetic field on CRT Homopolar generators 564
display 471 AC generators 566
DC motor 475 Induction motors 570
Permanent magnet 496 Synchronous motors 574
Earth's magnetic field 499 The magneplane 576
Magnetic-core memory 501
1
f
APPLIED ELECTROMA
Third Edition
Liang Chi Shen
University ofHouston
)in Au Kong
Massachusetts Institute ofTechnology
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Applied electromagnetism/Liang Chi Shen, Jin Au Kong.—3rd ed.
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Includes bibliographical references (p. )and index.
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To our parents:
How could a blade ofgrass
Repay the warmth from the spring sun
—
Meng Chio (751-814)
COURSE OPTIONSIAPPLIED ELECTROMAGNETISM*
Complex Vectors, Chapter 1
Maxwell's Equations, Chapter 2
Uniform Plane Waves, Chapter 3
Reflection and Transmission of
Waves, Chapter 4
Waveguides and Resonators, Transmission Lines,
Chapter 5 Antennas, Chapter 7 Chapter 6
Topics in Waves, Chapter 8 Electrostatic Fields, Chapter 9
Electric Force and Energy,
Chapter 10
Solution Techniques, Direct Currents,
Chapter 11 Chapter 12
Magnetostatic Fields,
Chapter 13
Electroquasistatic Fields, Magnetic Materials and Magnetic Magnetoquasistatic Fields,
Chapter 15 Circuits, Chapter 14 Chapter 16
s The nine chapters in the central column may be covered in a one-semester course.
IY
CONTENTS
Notations, Symbols, and Units xiii
COMPLEX VECTORS
I
I
1.1 Complex Algebra
I
1.2 Complex Representation of Time-Harmonic Scalars 4
1.3 Real Vectors 7
1.4 Complex Vectors 4
I
1.5 Time Averages 7
I
Problems 9
I
2 MAXWELL'S EQUATIONS
23
2.1 Maxwell's Equations 23
2.2 Constitutive Relations 34
2.3 Maxwell's Equations for Time-Harmonic Fields 36
2.4 Lorentz Force Law 37
2.5 Poynting's Theorem 39
Problems 42
I
3 UNIFORM PLANE WAVES
45
3.1 Electromagnetic Sources 45
3.2 Uniform Plane Waves in Free Space 48
3.3 Polarization 56
3.4 Plane Waves in Dissipative Media 62
Y
1
VI Contents
3.5 Radiation Power and Radiation Pressure 72
Problems 80
4 REFLECTION AND TRANSMISSION OF WAVES 84
4.1 Boundary Conditions 84
4.2 Reflection and Transmission at a Dielectric Interface 88
4.3 Standing Waves 103
Problems 112
5 WAVEG UIDES AND RESONATORS
119
5.1 Parallel-Plate Waveguides 119
5.2 Rectangular Waveguides and Resonators 128
5.3 Dielectric Slab Waveguides 138
5.4 Coaxial Lines 143
Problems 149
I
6 TRANSMISSION LINES
155
6.1 Concept ofVoltage, Current, and Impedance 155
6.2 Transmission-Line Equations 161
6.3 Impedances 165
6.4 Generalized Reflection Coeflicient and Smith Chart 168
6.5 Transients on Transmission Lines 187
Problems 206
7 ANTENNAS
210
7.1 Vector and Scalar Potential Functions 210
7.2 Fields of an Infinitesimal Antenna 212
7.3 Linear Antennas 224
7.4 Array Antennas 231
Problems 254
Ij
Contents
VII
8 TOPICS IN WAVES 259
8.1 Rayleigh Scattering 259
8.2 Fourier Optics and Holography 265
8.3 Gaussian Beam 272
8.4 Doppler Effect 276
8.5 Plane Waves in Anisotropic Media 283
Problems 288
9 ELECTROSTATIC FIELDS
291
9.1 Electrostatic Potential 291
9.2 Electrostatic Fields 297
9.3 Gauss'aw and Its Applications —304
9.4 Calculation of Potential from E Field Line Integral 315
Problems 327
IQ ELECTRIC FORCE AND ENERGY 331
10.1 Electric Force 331
10.2 Work and Energy 345
10.3 Capacitance 359
Problems 375
SOLUTION TECHNIQUES
I I 380
11.1 Poisson and Laplace Equations 380
11.2 Image Method 389
11.3 Method of Separation ofVariables 407
Problems 418
I2 DIRECT CURRENTS
424
12.1 Ohm's Law 424
12.2 Analogy Between Direct Current and Electrostatic Field 429
Problems 440
I
