A CONCISE APPROACH TO ELECTROMAGNETIC FIELDS AND WAVES

Abstract

As the name implies, “A Concise Approach to Electromagnetic Fields and Waves” is an outgrowth of the lecture notes prepared for Electromagnetic Fields and Waves I & II. Intended primarily as a text book for students at the advanced undergraduate or beginning graduate level, it is expected that the book will be useful for research workers too. It provides a thorough treatment of the theory of electrodynamics, mainly from a classical field theoretical point of view, and includes such things as electrostatics, electromagnetic waves and their propagation in vacuum and in media. With the parameters and terms that made up the text clearly defined, this book is based on classical electromagnetism that deals with the study of static charges and their electric fields, the magnetic field developed by motional charges and the electromagnetic wave that treated the dynamism of electron in rapidly time-varying condition. The book – “A Concise Approach to Electromagnetic Fields and Waves” consists of eight chapters. Chapter one is an introduction to electromagnetic fields and waves. This chapter x-rays the basic concepts about electromagnetics, the discovery of electromagnetic field, Maxwell’s equations, electromagnetic spectrum and the fundamental characteristics of EM waves. Chapter two looks into a review of vector analysis, which includes vector algebra and vector calculus, while chapter three presents Electrostatics and its applications as well as charge distribution in a conductor, Coulomb’s law, electric field intensity, and electric potential. In chapter four, there is a review of EM laws in the integral form, which houses Gauss’s law, Ampere’s law, Faraday’s law, magnetic field in and around a current-carrying conductor, conduction and displacement current density, derivation of Maxwell’s equation from Ampere’s law, Faraday’s law and Gauss’s law. Wave equation derived from Maxwell’s equation is presented in chapter five, while chapter six looks into divergence and stoke’s theorems. This chapter comprises time harmonic waves, poynting vector (s), media of plane waves, wavelength of wave in free space, wave propagation in free space and in perfect dielectric, etc. Transmission line is presented in chapter seven and lastly, chapter eight contains miscellaneous problems and their solutions. This book tries to build a good background for the targeted students and set them to the context of electromagnetism without over assumption. To this end, a student of electromagnetism, studying for the basic principles of and building blocks for communication and power system engineering, will find this text an invaluable material and relief for hitherto dreaded but all important course in Electrical and Electronics Engineering.