Principles Of Microwave Circuits

Offers a detailed explanation of the development of the impedance concept and its equivalent microwave circuits.

This book is primarily designed for courses in Microwave Engineering for undergraduate students of Electronics and Communication Engineering. Besides, it would be a useful text for students pursuing AMIE courses and M.Sc. students pursuing courses in physics and electronic sciences. The book explains the basic principles with a view to providing the students with a thorough understanding of microwave devices and circuits. It explains the analysis and design techniques used in microwave engineering. It provides a unified presentation of solid-state devices, microwave tubes (TWTs), klystrons, magnetrons and microwave circuits. Concentrating on clarity of explanation, the text provides a comprehensive presentation of the relevant theoretical aspects to allow students to easily assimilate this highly mathematical subject.

While many articles have been written on microwave devices, a great majority of them are prepared for specialists dealing in specific aspects of microwave engineering. At the same time, material at a fundamental level in tutorial form is extremely limited, especially for stu dents who need to acquire basic knowledge in the field. Individuals seeking to gain a prelim inary understanding of microwave circuits are usually relegated with little success to the end less search from one reference source to another. For non-experts, sequential derivations of basic relations are rarely available and extremely difficult to locate. The purpose of this volume is to collect in one place the essential fundamental principles for a group of microwave devices. The chosen devices are those which form the basic modules found in practical microwave systems. Thus, these devices provide the crucial build ing blocks in common microwave systems, and their inherent characteristics are also the basis of some of the fundamental concepts in more complex devices. The material is presented in a continuous, self-contained manner. With the appropriate background, readers should be able to follow and understand the contents without the need for additional references.

This comprehensive resource provides a thorough introduction to the principles of electronic circuits operating in the radio, microwave, and millimeter-wave frequency ranges. The book highlights the fundamental physical laws of classical electromagnetics using a foundation of Maxwell’s equations to give insight into the operating principles of circuit elements of all kinds, from lumped elements to transmission lines, waveguides, optical fibers, and quasi-optical structures. Standard passive system components like filters, splitters, couplers, hybrids, baluns, and antennas are explained to acclimate the reader to considering multiple technological solutions for common design problems. A basic overview of active circuit designs, such as amplifiers, mixers, and multipliers is also provided, along with discussion of the performance characteristics of electronic systems, including noise and linearity. Emphasis is placed on visualization and understanding of how and why electronic circuits of all frequencies are built and operate the way they do. Readers learn how to match an amplifier for optimum noise performance over the broadest bandwidth with the fewest number of elements and how to visualize the coupling of various modes in a mixed waveguide-type structure and avoid resonances due to trapped, higher-order modes. The book provides the tools needed to design and optimize a launcher from microstrip into waveguide, and whether the best characteristics can be achieved by incorporating matching elements in the microstrip section, the waveguide section, or both. Packed with references and examples, readers learn not only how to do the math but what the math means.

Textbook covering a wide range of microwave measurements in the time and frequency domains, including reflectometry, the Smith chart, spectrum analyzers, vector and scalar analyzers, multiports, power, noise, frequency stability, time domain reflectometry, and a comprehensive account of antenna far and near field measurements. For young engineers requiring a good background in microwave measurement principles. Annotation copyrighted by Book News, Inc., Portland, OR

Pozar's new edition of Microwave Engineering includes more material on active circuits, noise, nonlinear effects, and wireless systems. Chapters on noise and nonlinear distortion, and active devices have been added along with the coverage of noise and more material on intermodulation distortion and related nonlinear effects. On active devices, there's more updated material on bipolar junction and field effect transistors. New and updated material on wireless communications systems, including link budget, link margin, digital modulation methods, and bit error rates is also part of the new edition. Other new material includes a section on transients on transmission lines, the theory of power waves, a discussion of higher order modes and frequency effects for microstrip line, and a discussion of how to determine unloaded.

This text offers comprehensive coverage of microwave topics in one volume. It provides descriptions, analysis and up-to-date specific applications in radar and communications including the new wireless technologies. This edition includes coverage of microwave topics, a software tutorial (on an accompanying diskette) with detailed information on thermionic microwave devices (especially relevant in satellite technology), and an applications chapter on new and emerging microwave technology. All maths is kept at the algebra or simple trigonometry levels and the book assumes a familiarity with alternating current theory.