This is a university-level textbook on electromagnetic fields and waves for undergraduate programs in electronic and information engineering, focusing on the basic properties of electromagnetic fields and waves, with emphasis on time-varying fields. With the rapid development of information technology, a thorough understanding of and familiarity with the properties of electromagnetic fields and waves, along with the relevant analytical tools and practical applications are expected for profession

This is an English translation of the textbook "Electromagnetic fields and elec-tromagnetic waves", written by Rugui Yang and published by Higher Education Pressin 2003. The initial translation was conducted by Robert R. G. Yang. Further re-view and revision of the translation was performed by Thomas T. Y. Wong. Professor Yang is with Southwest Jiaotong University of China, where he was the director of the Electromagnetics Institute. Professor Wong is with the Illinois Institute of Technology(IIT) in USA, where he is the director of the Microwave Laboratory and the chair-man of the Electrical and Computer Engineering Department at liT.
To facilitate bilingual teaching and learning, much effort has been devoted to preserving the original syntax as well as the style of presentation vested in the Chinese text, while being mindful of the intrinsic differences between the two languages.
The assistance in word processing provided by Ming Yan and Feng Gao, both doctoral students in electrical engineering at IIT, has been a significant contribution to the preparation of the revised manuscript.
Questions and comments on this book will be much appreciated. Readers are en-couraged to visit the Website at http://lxy, swjtu, edu. cn/emi/books/emfw/ emfw. asp.

Recommendation
Preface(For English version)
Preface

Chapter 1 Vector Analysis
1-1 Scalars and vectors
1-2 Vector algebra
1-3 Scalar product
1-4 Vector product
1-5 Directional derivative and gradient
1-6 Flux,divergence and the divergence theorem
1-7 Circulation,curl and Stokes’theorem
1-8 Solenoidal and irrotational fields
1-9 Green’S theorems
1-10 Uniqueness theorem for vector fields
1-11 Helmholtz’S theorem
1-12 0rthogonal curvilinear coordinates
Review questions
Problems

Chapter 2 Static Electric Fields
2-1 Field intensity,flux,and field lines
2-2 Equations for electrostatic fields in free space
2-3 Electric potential and equipotential surfaces
2-4 Polarization of dielectrics
2-5 Equations for electrostatic fields in dielectric
2-6 Boundary conditions for dielectric interfaces
2-7 Boundary conditions for dielectric-conductor interface
2-8 Capacitance
2-9 Energy in electrostatic field
2-10 Electric forces
Review questions
Problems

Chapter 3 Boundary-Value Problems in Electrostatics
3-1 Differential equations for electric potential
3-2 Uniqueness of solution of differential equations for electric potential
3-3 Method of images
3-4 Method of separation of variables in rectangular coordinates
3-5 Method of separation of variables in cylindrical coordinates
3-6 Method of separation of variables in spheftcal coordinates
Review questions
Problems
Chapter 4 Steady Electric Current Fields
4-1 Electric current and current density
4-2 Electromotive force
4-3 Principle of electric current continuitv
4-4 Boundary conditions for steady electric current fields
4-5 Energy dissipation in steady electric current fields
4-6 Electrostatic simulation
Review questions
Problems

Chapter 5 Steady Magnetic Fields
5-1 Flux density,flux and field lines
5-2 Equations for steady magnetic fields in free space
5-3 Vector and scalar magnetic potentials
5-4 Magnetization of media
5-5 Equations for steady magnetic fields in a medium
5-6 Boundary conditions for steady magnetic fields
Review questions
Problems

Chapter 6 Electromagnetic Inducfion
6-1 Law of electromagnetic induction
6-2 Inductance
6-3 Energy in steady magnetic fields
6-4 Magnetic forces
Review questions
Problems

Chapter 7 Time-varying Electromagnetic Fields
7-1 Displacement electric current
7-2 MaxweU's equations
7-3 Boundary conditions for time-varying electromagnetic fields
7-4 Scalar and vector potentials
7-5 Solution of equations for potentials
7-6 Energy density and energy flow density vector
7-7 Uniqueness theorem
7-8 Time-harmonic electromagnetic fields
7-9 Complex Maxwell's equations
7-10 Complex potentials
7-11 Complex energy density and energy flow density vector
Review questions
Problems

Chapter 8 Plane Electromagnetic Waves
8-1 Wave equations
8-2 Plane waves in perfect dielectrics
8-3 Plane waves in conducting media
8-4 Polarizations of plane waves
8-5 Normal incidence on a planar surface
8-6 Normal incidence at multiple boundaries
8-7 Plane waves in arbitrary directions
8-8 Oblique incidence at boundary between perfect dielectrics
8-9 Null and total reflections
8-10 Oblique incidence at conducting boundary
8-11 Oblique incidence at perfect conducting boundary
8-12 Plane waves in plasma
8-13 Plane waves in ferrite
Review questions
Problems

Chapter 9 Guided Electromagnetic Waves
9-1 TEM wave, TE wave, and TM wave
9-2 Equations for electromagnetic waves in rectangular waveguides
9-3 Characterization of electromagnetic waves in rectangular waveguides
9-4 TE wave in rectangular waveguides
9-5 Group velocity
9-6 Circular waveguides
9-7 Transmitted power and loss in waveguides
9-8 Resonant cavity
9-9 Coaxial lines
Review questions
Problems

Chapter 10 Electromagnetic Radiation and Principles
10-1 Radiation by electric current element
10-2 Directivity of antennas
10-3 Radiation by symmetrical antennas
10-4 Radiation by antenna arrays
10-5 Radiation by electric current loop
10-6 Principle of duality
10-7 Principle of image
10-8 Principle of reciprocity
10-9 Huygens' principle
10-10 Radiations by aperture antennas
Review questions
Problems

Appendixes
1. Symbols, units and dimensions of physical quantities
2. Decimal multiples and submultiples and their prefixes
3. Vector identities
4. Orthogonal coordinates system
5. functions
6. Bessel functions
7. Legendre functions
8. Freqency bands and their utilizations
Answers
Index
References
Biographies
……