This book is intended to serve as a textbook for a first course in Microwave Engineering which, today, is included in the engineering undergraduate curricula of almost all universities and institutions of higher learning. This book is an outgrowth of the classroom lectures that the author has been giving at the Indian Institute of Science, Bangalore, for over three decades. It attempts to discuss the basic microwave techniques, starting with transmission lines. Throughout the book, emphasis has been laid on physical principles. This book would be equally useful to postgraduates, research students and practising R & D engineers, for self-study and also for reference to acquire a better understanding of the fundamentals of microwave engineering. Complete numerical/analytical solutions of some typical problems, and sets of exercises with answers, have been given at the end of each chapter. A distinctive feature of this book is that all the drawings and graphs/curves are computer-generated using data of some typical practical lines. Low frequency telephone and telegraph lines have also been discussed to a fairly good depth. About The Author: Prof. A. KUMAR is currently an Emeritus Scientist (CSIR) at the Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore. He obtained the BSc (Hons) (Physics) and MSc(Physics) degrees from Delhi University, Dl ISc (ECE), ME(Microwaves) and Ph.D. Degrees from IISc. He is recipient of the Nutfield Foundation Fellowship under which he worked for 15 months at the University College, London. He joined the ECE Dept, IISc, Bangalore, as Lecturer in 1965, served the Department as a Professor since 1984 and as its Chairman from 1988 to1992. He retired from the Institute in 1995. His research i