Electromagnetism for Engineers

ISBN-13: 9781119406167 / Angielski / Twarda / 2022 / 224 str.

UK) Flewitt Andrew J. (University of Cambridge

Opis

Electromagnetism is a notoriously difficult subject to teach. Although modern life is entirely enabled by electromagnetic effects, it is less intuitive to grasp electromagnetism compared with, say, mechanics, where it is possible to see all the parts of a system working, and to literally feel effects of forces or torque. Therefore, although electromagnetism is a very beautiful branch of physics with some elegant mathematics, it is deemed to be inaccessible by many students. At University level, there is a need for electrical and electronic engineers in particular to have a good understanding of electromagnetism and how it impacts upon communications, power generation and transmission, semiconductor devices, motors, etc. The aim of this book is to develop an engineering student's understanding of electromagnetism in the context of real effects and how they apply to such applications, whilst retaining all of the power of the elegant mathematics that can be used to give insight. Section 1 covers the fundamentals of electromagnetism. This includes the basics of electric and magnetic fields and their expression through the Maxwell equations, and also how they interact with materials like semiconductors, piezoelectrics, magnets, etc. Section 2 then considers the application of electromagnetism to transmission lines, antennas, and waveguides. This is an introductory undergraduate textbook which would then lead on to specialist textbooks on given application areas (e.g. radio communications), but also a useful refresher for professional engineers.

Spis treści

Preface ixAcknowledgements xiAbout the Author xiiSymbols xiiiAbout the Companion Website xvPart I Fundamentals of Electricity and Magnetism 11 Charge and Electric Fields 32 Electric Fields in Materials 153 Currents and Magnetic Fields 374 Magnetic Fields in Materials 515 The Maxwell Equations of Elecromagnetism 71Part II Applications of Electromagnetism 836 Transmission Lines 857 Electromagnetic Waves in Dielectric Media 1158 Antennas 1319 Electromagnetic Waves at Dielectric Interfaces 14310 Electromagnetic Waves in Conducting Media 16111 Waveguides 17312 Three-Phase Electrical Power 187Epilogue 203Index 205

O autorze

Andrew J. Flewitt, PhD CEng, is Professor of Electronic Engineering at Cambridge University, Department of Engineering, and Head of the Electrical Engineering Division. He graduated in Physics from the University of Birmingham, UK, before moving to Cambridge to carry out a PhD in Engineering investigating the growth of hydrogenated amorphous silicon thin films using scanning tunnelling microscopy. He was first appointed to a Lectureship in 2002, and his current research interests encompass both large-area electronics and microelectromechanical systems. He is a Member of the Institute of Physics, a Member of the Institution of Engineering and Technology, and is a Chartered Engineer.