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## Antenna and Wave Propagation by K.D. Prasad: A Comprehensive Guide for Engineering Students

If you are an engineering student who wants to learn about antenna and wave propagation, you might be looking for a reliable and comprehensive source of information. One such source is the book Antenna and Wave Propagation by K.D. Prasad, published by Satya Prakashan in 2003. This book covers all the essential topics related to antenna theory and design, as well as the principles and applications of wave propagation. In this article, we will give you an overview of the book, its benefits, and how you can download it for free.

## Overview of the book

The book Antenna and Wave Propagation by K.D. Prasad consists of 1282 pages, divided into eight chapters. The chapters are as follows:

• Introduction

• Antenna Fundamentals

• Wave Propagation

• Antenna Arrays

• Special Antennas

• Antenna Measurements

• Microwave Antennas

The book covers both theoretical and practical aspects of antenna and wave propagation, with numerous examples, diagrams, tables, graphs, and exercises. The book also includes appendices on vector analysis, electromagnetic theory, transmission lines, Smith chart, Bessel functions, spherical harmonics, Fourier transform, Z-transform, Laplace transform, numerical methods, MATLAB programs, antenna design software, and antenna standards.

## Benefits of the book

The book Antenna and Wave Propagation by K.D. Prasad has many benefits for engineering students who want to learn about this subject. Some of these benefits are:

• The book is written in a clear and concise manner, with simple language and explanations.

• The book covers all the relevant topics in depth, with sufficient details and derivations.

• The book provides a balance between theory and practice, with many real-world examples and applications.

• The book follows the latest syllabus and trends in antenna and wave propagation.

• The book has a lot of exercises and problems at the end of each chapter, with answers and hints.

• The book has a lot of references and resources for further reading and research.

## Antenna Fundamentals

In this chapter, the book introduces the basic concepts and parameters of antennas, such as:

• Definition and function of an antenna

• Antenna impedance, radiation resistance, and efficiency

• Antenna directivity, gain, and beamwidth

• Antenna polarization, bandwidth, and input impedance

• Antenna radiation mechanism and fields

• Antenna radiation patterns and lobes

• Antenna theorems and reciprocity

The book also explains the different types and characteristics of antennas, such as:

• Wire antennas, such as dipoles, loops, helices, and Yagi-Uda antennas

• Patch antennas, such as microstrip and printed antennas

• Slot antennas, such as rectangular and circular slot antennas

• Reflector antennas, such as parabolic and corner reflector antennas

• Lens antennas, such as dielectric and metal-plate lens antennas

• Antenna matching and feeding techniques, such as baluns, transformers, and stubs

## Wave Propagation

In this chapter, the book discusses the different modes and mechanisms of wave propagation, such as:

• Ground wave propagation, such as surface wave and space wave propagation

• Sky wave propagation, such as ionospheric wave propagation and skip distance

• Space wave propagation, such as satellite communication and link budget

• Tropospheric wave propagation, such as ducting and scattering phenomena

• Optical wave propagation, such as free space optics and fiber optics

The book also describes the effects of the earth and the atmosphere on wave propagation, such as:

• Earth curvature and refraction effects

• Atmospheric attenuation and absorption effects

• Atmospheric noise and interference effects

• Diversity techniques to combat fading effects

The book also presents the various propagation parameters and models, such as:

• Path loss and link margin parameters

• Friis transmission equation and radar range equation models

• Hata model and COST 231 model for cellular communication systems

• Okumura model and Walfisch-Ikegami model for urban environments

• Rician model and Rayleigh model for fading channels

## Antenna Arrays

In this chapter, the book explains the principles and applications of antenna arrays, such as:

• Definition and advantages of antenna arrays

• Array factor and pattern multiplication principle

• Linear arrays, such as uniform and non-uniform arrays

• Planar arrays, such as rectangular and circular arrays

• Array synthesis techniques, such as binomial and Chebyshev methods

• Array beamforming and steering techniques, such as phased array and adaptive array

• Array applications, such as smart antennas and MIMO systems

## Special Antennas

In this chapter, the book introduces some special types of antennas that have unique features and advantages, such as:

• Frequency independent antennas, such as log-periodic and spiral antennas

• Aperture antennas, such as slot and waveguide antennas

• Horn antennas, such as pyramidal and conical horn antennas

• Biconical antennas, such as dipole and bow-tie antennas

• Travelling wave antennas, such as helical and rhombic antennas

• Antenna miniaturization techniques, such as fractal and metamaterial antennas

## Antenna Measurements

In this chapter, the book describes the various measurement techniques and equipment for antennas, such as:

• Measurement objectives and parameters, such as impedance, gain, pattern, polarization, bandwidth, and efficiency

• Measurement methods and setups, such as impedance bridge, network analyzer, anechoic chamber, open field, and far field methods

• Measurement equipment and instruments, such as signal generator, power meter, spectrum analyzer, oscilloscope, and antenna positioner

• Measurement errors and sources, such as reflections, multipath, interference, noise, calibration errors, and human errors

• Measurement standards and procedures, such as IEEE standards and guidelines for antenna measurements

## Conclusion

In this article, we have given you an overview of the book Antenna and Wave Propagation by K.D. Prasad. This book is a comprehensive guide for engineering students who want to learn about antenna theory and design, as well as the principles and applications of wave propagation. The book covers all the essential topics in depth, with sufficient details and derivations. The book also provides a balance between theory and practice, with many real-world examples and applications. The book follows the latest syllabus and trends in antenna and wave propagation. The book has a lot of exercises and problems at the end of each chapter, with answers and hints. The book has a lot of references and resources for further reading and research.

If you are interested in reading this book, you might be wondering how you can download it for free. Well, there are some websites that offer free PDF downloads of this book. However, we do not recommend or endorse these websites, as they may violate the copyright laws or contain viruses or malware. Therefore, we suggest that you buy the original book from a reputable online or offline bookstore. Alternatively, you can borrow the book from a library or a friend who has it.

• Q: Who is K.D. Prasad?

• A: K.D. Prasad is a professor of electronics and communication engineering at Birla Institute of Technology (BIT), Mesra. He has more than 40 years of teaching experience in antenna and wave propagation. He has also authored several other books on related subjects.

• Q: What is the difference between antenna and wave propagation?

• A: Antenna is a device that converts electrical signals into electromagnetic waves or vice versa. Wave propagation is the study of how electromagnetic waves travel through different media or environments.

• Q: What are the applications of antenna and wave propagation?

• A: Antenna and wave propagation have many applications in various fields of engineering and technology, such as wireless communication systems (e.g., cellular phones), radio and television broadcasting, radar and navigation systems, satellite communication systems, remote sensing and imaging systems, biomedical and health care systems, and defense and security systems.

• Q: What are the prerequisites for reading this book?

• A: To read this book, you should have a basic knowledge of mathematics, physics, and electronics. You should also be familiar with the concepts of vector analysis, electromagnetic theory, and transmission lines.

• Q: How can I improve my skills in antenna and wave propagation?

• A: To improve your skills in antenna and wave propagation, you should read this book thoroughly and practice the exercises and problems given at the end of each chapter. You should also refer to other books and online resources for more information and examples. You should also try to design and test your own antennas and measure their performance using the appropriate equipment and methods.

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