PREFACE

There are various books available on antennas. The emphasis of many of these books is on theoretical aspects of antennas. However, to design an antenna for a specific application, many additional parameters have to be taken into account. Authors feel that there is a need of a book that mainly covers the concept and design. This Book entitled “Antennas – Concept and Design” covers basic fundamentals of antennas, Dipole, Monopole, Loop, Slot, Linear and Planar arrays, Microstrip Antennas (MSA), MSA Arrays, Helical, Horn, Yagi-Uda & Log-Periodic and Reflector Antennas. For all these antennas, the emphasis is on explanation of basic concepts followed by practical design aspects. The book also gives simple design equations, simulated results and measured results of fabricated antennas. This book will be very useful to the students, faculty members and engineers from telecom and wireless industries,
defence and space organizations, etc., who work in the areas of antennas, RF and microwave systems. To the best of the authors’ knowledge, for the first time, an attempt has been made to introduce the book in the form of Power Point Presentation (PPT), so that readers can grasp the ideas quickly instead of reading long paragraphs. A well known quote is: “A picture is worth a thousand words”. Practice problems are provided at the end of each chapter with answer keys at the end of the book.
All the topics covered in this book are recorded in a course entitled “Antennas” through NPTEL, IIT Bombay, where 6000+ participants enrolled in both 2017 and 2018. Readers can refer to the YouTube links provided at the start of each chapter for detailed explanation. Our prime minister’s initiative of “MAKE IN INDIA” will be more successful if it follows “DESIGN IN
INDIA” principle and this book is oriented towards this slogan.

ACKNOWLEDGEMENTS

First and foremost, Authors would like to express their sincere gratitude to Indian Institute of Technology Bombay (IIT Bombay) for providing the facilities and environment to carry out the research work.

 

Our sincere thanks to the entire NPTEL (National Programme on Technology Enhanced Learning) Team and Government of India for initiating such a nice platform for offering online courses.

 

Our sincere thanks to all the researchers around the world, undergraduate and post-graduate students associated with the Antenna Lab, Department of Electrical Engineering, IIT Bombay, whose material may
have been included in this book.

 

We are thankful to Dr. Ankit Ashok Bhurane for helping in designing the proper website for the book. We would also like to thank Ms. Priyanka Rawal for designing the cover page of this book.

 

We express our appreciation and sincere gratitude to our family members for their encouragement, motivation and continuous support throughout this work. Above all, we want to thank Almighty God for granting us the ability, health, strength and many other priceless things without which this work would not have been possible.