Principles Of Electromagnetic Waves And Materials

Principles of Electromagnetic Waves and Materials is a condensed version of the author's previously published textbook, Electromagnetic Waves, Materials, and Computation with MATLAB. This book focuses on lower-level courses, primarily senior undergraduate and graduate students in electromagnetic waves and materials courses. It takes an integrative

"Preface The subject of electromagnetics is still a core subject of the undergraduate electrical engineering (EE) curriculum; however, at most of the universities in United States, the time allotted to teach it is cut into half (one 3-credit course instead of two). The present graduates with BS degree in EE being rushed through the same curriculum content in a shorter time often miss the concepts and depend on a lot of formulas which they use as a recipe for some calculations based on an example worked out in the book. Some of them are fortunate to take a follow-up special elective course in microwaves or RF design or antennas or fiber optics, and so on, thus partly reinforcing one application area. Readily available commercial software allows them to do routine calculations and design without having a conceptual understanding of the expected solution. The commercial software is so user-friendly that we usually get a beautiful colored visualization of the solution, even if it is a wrong simulation of the physical problem. After getting one or two mild reprimands from the boss in a new employment after graduation, the new graduate realizes the need to have a fairly good idea of what is the appropriate model to be simulated and what qualitative result is to be expected. Though the software is very useful, it is not a substitute for a conceptual understanding of the steps involved in solving the problem. Fortunately, for him, there is probably a university which offers graduate courses and there is an instructor or professor who understands that these bright students recruited by some of the top companies are not less smart than the employees recruited by the company, say a decade or two ago. On the other hand, they are very knowledgeable and comfortable"--

Principles of Electromagnetic Waves and Materials is a condensed version of the author's previously published textbook, Electromagnetic Waves, Materials, and Computation with MATLAB(R). This book focuses on lower-level courses, primarily senior undergraduate and graduate students in electromagnetic waves and materials courses. It takes an integrative approach to the subject of electromagnetics by supplementing quintessential "old-school" information and methods with the appropriate amount of material on plasmas for exposing the students to the broad area of Plasmonics and by striking a balance between theoretical and practical aspects.

Principles of Electromagnetic Waves and Materials is a condensed version of the author's previously published textbook, Electromagnetic Waves, Materials, and Computation with MATLAB. This book focuses on lower-level courses, primarily senior undergraduate and graduate students in electromagnetic waves and materials courses. It takes an integrative approach to the subject of electromagnetics by supplementing quintessential "old-school" information and methods with the appropriate amount of material on plasmas for exposing the students to the broad area of Plasmonics and by striking a balance between theoretical and practical aspects. Ancillary materials are available upon qualifying course adoption.

Transformation electromagnetics is a systematic design technique for optical and electromagnetic devices that enables novel wave-material interaction properties. The associated metamaterials technology for designing and realizing optical and electromagnetic devices can control the behavior of light and electromagnetic waves in ways that have not been conventionally possible. The technique is credited with numerous novel device designs, most notably the invisibility cloaks, perfect lenses and a host of other remarkable devices. Transformation Electromagnetics and Metamaterials: Fundamental Principles and Applications presents a comprehensive treatment of the rapidly growing area of transformation electromagnetics and related metamaterial technology with contributions on the subject provided by a collection of leading experts from around the world. On the theoretical side, the following questions will be addressed: “Where does transformation electromagnetics come from?,” “What are the general material properties for different classes of coordinate transformations?,” “What are the limitations and challenges of device realizations?,” and “What theoretical tools are available to make the coordinate transformation-based designs more amenable to fabrication using currently available techniques?” The comprehensive theoretical treatment will be complemented by device designs and/or realizations in various frequency regimes and applications including acoustic, radio frequency, terahertz, infrared, and the visible spectrum. The applications encompass invisibility cloaks, gradient-index lenses in the microwave and optical regimes, negative-index superlenses for sub-wavelength resolution focusing, flat lenses that produce highly collimated beams from an embedded antenna or optical source, beam concentrators, polarization rotators and splitters, perfect electromagnetic absorbers, and many others. This book will serve as the authoritative reference for students and researchers alike to the fast-evolving and exciting research area of transformation electromagnetics/optics, its application to the design of revolutionary new devices, and their associated metamaterial realizations.

From sound waves to gravitational waves, and from waves of light to crashing rollers on the ocean, Mike Goldsmith explores the fundamental features shared by all waves in the natural world, and considers the range of phenomena resulting from wave motion, including reflection, diffraction, and polarization in light, and beats and echoes in sound.

Principles of Electromagnetic Theory is an essential component of the physics curriculum and this comprehensive textbook introduces undergraduate students to the basic principles of electromagnetic theory. Although several excellent textbooks on electromagnetic theory are available, the author has tried to make this book lucid for better comprehension. The contents have been arranged in a systematic manner, covering all the major topics of electromagnetic theory, viz, propagation of electromagnetic waves through isotropic and anisotropic medium, their reflection and transmission at an interface, transmission lines and waveguides. Wherever necessary, a brief recapitulation of the fundamental knowledge has been provided. Each chapter has a collection of worked out numerical and objective questions. This book is a complete package in itself as it sufficiently covers the syllabus of various institutions which offer a course on electromagnetic theory. It also prepares the student for various competitive exams by providing a conceptual insight into the topics covered.