This is the third edition of Antenna Theory: Analysis and Design which is designed to meet the needs
of electrical engineering and physics students at thesenior undergraduate and beginning graduate levels,
and those of practicing engineers as well. The text presumes that the students have a knowledge of basic
undergraduate electromagnetic theory, including Maxwell's equations and the wave equation, introductory
physics, and differential and integral calculus. Mathematical techniques required for understanding
some advanced topics in the later chapters are incorporated in the individual chapters or are included as
appendices.
The third edition has maintained all of the attractive features of the first two editions, including the
three-dimensional graphs to display the radiations characteristics of antennas, especially the amplitude
patterns. This feature was hailed as an innovative and first of its kind addition in a textbook on antennas.
Additional graphs have been added to illustrate features of the radiation characteristics of some antennas.
However there have been many new features added to this edition. In particular,
· A new chapter on Smart Antennas (Chapter 16)
· A section on Fractal Antennas (Section 11.6)
· Summary tables of important equations in the respective chapters (Chapters 2, 4, 5, 6, 12, 13 and 14)
· New figures, photos and tables
· Additional end-of-the-chapter problems
· CD with the following Multimedia Material:
· Power Point view graphs of lecture notes for each chapter, in multicolor
· End-of-the-chapter Interactive Questionnaires for review (40-65 for each chapter) based on Java.
· Animations based on Java
· Applets based on Java
· MATLAB programs translated from the FORTRAN programs of the 2nd edition
· A number of new MATLAB programs
· FORTRAN programs from the second edition.
The CD is attached to the book, and it will open automatically once inserted in the computer. It is highly
recommended that the reader uses the Internet Explorer (IE) to open the Multimedia Material;
other browsers may not perform well. For additional instructions how to open and use the material in the CD,
there is a HELP file in the CD.
The book’s main objective is to introduce, in a unified manner, the fundamental principles of antenna theory
and to apply them to the analysis, design, and measurements of antennas. Because there are so many methods
of analysis and design and a plethora of antenna structures, applications are made to some of the most basic
and practical configurations, such as linear dipoles; loops; arrays; broadband, and frequency independent
antennas; aperture antennas; horn antennas; microstrip antennas; and reflector antennas. A tutorial chapter on
Smart Antennas has been included to introduce the student in a technology that will advance antenna theory and
design, and revolutionize wireless communications. It is based on antenna theory, digital signal processing,
networks and communications. MATLAB simulation software has also been included, as well as a plethora
of references for additional reading. Introductory material on analytical methods, such as the Moment Method
and Fourier transform (spectral) technique, is also included. These techniques, together with the fundamental
principles of antenna theory, can be used to analyze and design almost any antenna configuration.
A chapter on antenna measurements introduces state-of-the-art methods used in the measurements of the most basic
antenna characteristics (pattern, gain, directivity, radiation efficiency, impedance, current and polarization)
and updates progress made in antenna instrumentation, antenna range design, and scale modeling. Techniques
and systems used in near- to far-field measurements and transformations are also discussed.
A sufficient number of topics have been covered, some for the first time in an undergraduate text, so that
the book will serve not only as a text, but also as a reference for the practicing and design engineer and
even the amateur radio buff. These include design procedures, and associated computer programs, for
Yagi-Uda and log-periodic arrays, horns, and microstrip patches; synthesis techniques using the
Schelkunoff, Fourier transform, Woodward-Lawson, Tschebyscheff, and Taylor methods; radiation
characteristics of corrugated, aperture-matched, and multimode horns; analysis and design of rectangular
and circular microstrip patches; and matching techniques such as the binomial, Tschebyscheff, T-, gamma,
and omega matches. The text contains sufficient mathematical detail to enable the average undergraduate
electrical engineering and physics students to follow, without too much difficulty, the flow of analysis and
design. A certain amount of analytical detail, rigor, and thoroughness allows many of the topics to be traced
to their origin. My experiences as a student, engineer, and teacher have shown that a text for this course
must not be a book of unrelated formulas, and it must not resemble a “cookbook.” This book begins with
the most elementary material, develops underlying concepts needed for sequential topics, and progresses
to more advanced methods and systems configurations. Each chapter is subdivided into sections or
subsections whose individual headings clearly identify the antenna characteristic(s) discussed, examined,
or illustrated.
A distinguished feature of this book is its three-dimensional graphical illustrations from the
first edition which have been expanded and supplemented in the second and third editions. In the past,
antenna texts have displayed the three-dimensional energy radiated by an antenna by a number of separate
two-dimensional patterns. With the advent and revolutionary advances in digital computations and graphical
displays, an additional dimension has been introduced for the first time in an undergraduate antenna text by
displaying the radiated energy of a given radiator by a single, three-dimensional graphical illustration.
Such an image, formed by the graphical capabilities of the computer and available at most computational
facilities, gives a clear view of the energy radiated in all space surrounding the antenna. It is hoped
that this will lead to a better understanding of the underlying principles of radiation, and it will provide
a clearer visualization of the pattern formation in all space. In addition, there is an abundance of
general graphical illustrations, design data, references, and an expanded list of end-of-the chapter
problems. Many of the principles are illustrated with examples, graphical illustrations, and physical
arguments. Although students are often convinced that they understand the principles, difficulties arise
when they attempt to use them. An example, especially a graphical illustration, can often better illuminate
those principles. As they say, “a picture is worth a thousand words.” Numerical techniques and
computer solutions are illustrated and encouraged.
A number of MATLAB computer programs are included in the CD attached to the book. Each program
is interactive and prompts the user to enter the data in a sequential manner. Some of these programs are
translations of the FORTRAN ones that were included in the first and second editions. However, many
new ones have been developed. Every chapter, other than Chapters 1 and 17, have at least one MATLAB
computer program; some have as many as three. The outputs of the MATLAB programs include graphical
illustrations and tabulated results. For completeness, the FORTRAN computer programs are also included,
although there is no much interest in them. The computer programs can be used for analysis and design.
Some of them are more of the design type while some of the others are of the analysis type. Associated
with each program there is a READ ME file which summarizes the respective program.
The purpose of the Lecture Notes is to provide the instructors a copy of the text figures and some of the
most important equations of each chapter. They can be used by the instructors in their lectures but need
to be supplemented with additional narratives. The students can use them to listen to the instructors’
lectures, without having to take detailed notes, but can supplement them in the margins with annotations from
the lectures. Each instructor will use the notes in a different way. The Interactive Questionnaires are
intended as reviews of the material in each chapter. The student can use them to review for tests,
exams, etc. For each question, there are three possible answers, but only one is correct. If the reader
chooses one of them and it the correct answer, it will so indicate. However if the chosen answer is the
wrong one, the program will automatically indicate the correct answer. An explanation button is
provided which gives a short narrative on the correct answer or indicates where in the book the correct
answer can be found. The Animations can be used to illustrate some of the radiation characteristics,
such as amplitude patterns, of some antenna types, like line sources, dipoles, loops, arrays and horns.
The Applets cover more chapters and can be used to examine some of the radiation characteristics
(such as amplitude patterns, impedance, bandwidth, etc.) of some of the antennas. This can be
accomplished very rapidly without having to resort to the MATLAB programs which are more detailed.
For course use, the text is intended primarily for a two-semester (or two- or three-quarter) sequency in
antenna theory. The first course should be given at thesenior undergraduate level, and should cover most
of the material in Chapter 1 through 7, and Chapters 16 and 17. The material in Chapters 8 through 15
should be covered in a beginning graduate-level course. Selected chapters and sections from the book
can be covered in a single semester, without loss of continuity. However, it is almost essenstial that
most of the material in Chapters 2 through 6 be covered in the first course and before proceeding to any
more advanced topics. To cover all the material of the text in the proposed time frame would be, in some
cases, a very ambitious task. Sufficient topics have been included, however, to make the text complete
and give the teacher the flexibility to emphasize, de-emphasize, or omit sections or chapters. Some of the
chapters and sections can be omitted without loss of continuity.
A sufficient number of topics have been covered, some for the first time in an undergraduate text,
so that the book will serve not only as a text, but also as a reference for the practicing and design
engineer and even the amateur radio buff.
Outline
Chapter 1: Antennas
Chapter 2: Fundamental Parameter of Antennas
Chapter 3: Radiation Integrals and Auxiliary Potential Functions
Chapter 4: Linear Wire Antennas
Chapter 5: Loop Antennas
Chapter 6: Arrays: linear, Planar, and Circular
Chapter 7: Antenna Synthesis and Continuous Sources
Chapter 8: Integral Equations, Moment Method, and Self and Mutual Impedances
Chapter 9: Broadband Dipoles and Matching Techniques
Chapter 10: Traveling Wave and Broadband Antennas
Chapter 11: Frequency Independent Antennas and Antenna Miniaturization
Chapter 12: Aperture Antennas
Chapter 13: Horn Antennas
Chapter 14: Microstrip Antennas
Chapter 15: Reflector Antennas
Chapter 16: Smart Antennas
Chapter 17: Antenna Measurements
Nine Appendices
|
