Electromagnetic Theory and Applications in Beam-wave Electronics
Electromagnetic Theory and Applications in Beam-wave Electronics

Author: B. N. Basu

Publisher: World Scientific

Published: 1996

Total Pages: 496

ISBN-13: 981022320X

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This book is divided into two parts. The first part deals with basic electromagnetic and the second part with beam-wave electronics related to growing-wave devices including 'slow-wave' travelling-wave tubes and 'fast-wave' gyro-travelling-wave tubes. The first part is a prerequisite for the second part, while the second part covers the applications of the topics discussed in the first part. These two parts put together make the volume a self-contained treatise. In the specific applications considered, time-independent field concepts are exemplified in the problems related to the formation of an electron beam by an electron gun, the confinement of an electron beam by a magnetic focusing structure, etc. Similarly, time-dependent field concepts are exemplified in problems related to propagation through a slow-wave structure and amplification in growing-wave electron beam devices, such as travelling-wave tubes, double-stream amplifiers, beam-plasma amplifiers and gyro-travelling-wave tubes. All throughout the text, stress is given to provide complete analytical deductions with full mathematical details and present the state-of-the-art concepts.

Electromagnetic Theory And Applications In Beam-wave Electronics
Electromagnetic Theory And Applications In Beam-wave Electronics

Author: B N Basu

Publisher: World Scientific

Published: 1996-03-22

Total Pages: 496

ISBN-13: 9814500208

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This book is divided into two parts. The first part deals with basic electromagnetics and the second part with beam-wave electronics in growing-wave devices including ‘slow-wave’ traveling-wave tubes and ‘fast-wave’ gyro-traveling-wave tubes. The first part is a prerequisite for the second part, while the second part covers the application of the topics discussed in the first part. These two parts put together make the volume a self-contained treatise.In the specific application considered, both time-independent and time-dependent field concepts are exemplified, unlike in the usual topics, such as waveguides, antennas etc. of microwave engineering, where only time-dependent field concepts are applied.Stress is given to provide complete analytical derivation. However, care has been taken to see that the theme of the subject is not buried in too many mathematical details. These details are, however, not sacrificed as they are provided in a large number of appendices organised within the main text instead of being relegated to the end of the chapters.

High Power Microwave Tubes
High Power Microwave Tubes

Author: Vishal Kesari

Publisher: Morgan & Claypool Publishers

Published: 2018-02-20

Total Pages: 111

ISBN-13: 1681747049

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Volume 2 of the book begins with chapter 6, in which we have taken up conventional MWTs (such as TWTs, klystrons, including multi-cavity and multi-beam klystrons, klystron variants including reflex klystron, IOT, EIK, EIO and twystron, and crossed-field tubes, namely, magnetron, CFA and carcinotron). In chapter 7, we have taken up fast-wave tubes (such as gyrotron, gyro-BWO, gyro-klystron, gyro-TWT, CARM, SWCA, hybrid gyro-tubes and peniotron). In chapter 8, we discuss vacuum microelectronic tubes (such as klystrino module, THz gyrotron and clinotron BWO); plasma-assisted tubes (such as PWT, plasma-filled TWT, BWO, including PASOTRON, and gyrotron); and HPM (high power microwave) tubes (such as relativistic TWT, relativistic BWO, RELTRON (variant of relativistic klystron), relativistic magnetron, high power Cerenkov tubes including SWO, RDG or orotron, MWCG and MWDG, bremsstrahlung radiation type tube, namely, vircator, and M-type tube MILO). In Chapter 9, we provide handy information about the frequency and power ranges of common MWTs, although more such information is provided at relevant places in the rest of the book as and where necessary. Chapter 10 is an epilogue that sums up the authors' attempt to bring out the various aspects of the basics of and trends in high power MWTs.

Microwave Active Devices : Vacuum And Solid State
Microwave Active Devices : Vacuum And Solid State

Author: M. L. Sisodia

Publisher: New Age International

Published: 2006

Total Pages: 588

ISBN-13: 9788122414479

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This Book Exhaustively Explains The Fundamental Physical And Theoretical Principles Underlying Microwave And Millimeter Wave Active Devices. Both Vacuum And Solid State Devices Are Suitably Discussed.The Book Begins By Highlighting The Applications Of Microwaves And Various Types Of Devices. It Then Explains Vacuum Devices Including Gyrodevices And Other High Power Sources.Various Two And Three Terminal Solid State Devices Are Then Discussed.These Include Hbts, Hfets And Rtds.The Text Is Amply Illustrated Through A Large Number Of Suitable Diagrams And Worked Out Examples. Practice Problems, Review Questions And Extensive References Are Also Given At The End Of Each Chapter.The Book Would Serve As An Exhaustive Text For Both Undergraduate And Postgraduate Students Of Physics And Electronics.

Introduction to the Physics of Gyrotrons
Introduction to the Physics of Gyrotrons

Author: Gregory S. Nusinovich

Publisher: JHU Press

Published: 2020-03-03

Total Pages: 352

ISBN-13: 1421429411

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As unique sources of coherent high-power, microwave, and millimeter-wave radiation, gyrotrons are an essential part of the hunt for controlled fusion. Presently, gyrotrons are actively used for electron cyclotron resonance plasma heating and current drive in various controlled fusion reactors. These sources have been under development in many countries for more than forty years. In spite of their widespread use, however, there is as yet no single book to introduce non-specialists to this vital field. Now Gregory S. Nusinovich, an early pioneer of the gyrotron and widely regarded today as the world's leading authority on the subject, explains the fundamental physical principles upon which gyrotrons and related devices operate. Nusinovich first sets forth some "rules of thumb" that allow readers to understand gyrotron operation in simple terms. He then explores the fundamentals of the general theory of gyrotrons and offers an overview of the various types of gyro-devices, including gyromonotrons, gyroklystrons, gyro-traveling-wave tubes, and gyrotwystrons. He explains not only the theory, linear and nonlinear, but also the practical challenges that users of such devices face. This book will be of interest to undergraduate and graduate students as well as to those who develop gyrotrons or who use them in various applications. It should also appeal to plasma physicists interested in charged-particle dynamics, as well as to applied physicists needing to know more about micro- and millimeter-wave technologies.

Electromagnetic Vortices
Electromagnetic Vortices

Author: Zhi Hao Jiang

Publisher: John Wiley & Sons

Published: 2021-12-29

Total Pages: 498

ISBN-13: 1119662826

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Discover the most recent advances in electromagnetic vortices In Electromagnetic Vortices: Wave Phenomena and Engineering Applications, a team of distinguished researchers delivers a cutting-edge treatment of electromagnetic vortex waves, including their theoretical foundation, related wave properties, and several potentially transformative applications. The book is divided into three parts. The editors first include resources that describe the generation, sorting, and manipulation of vortex waves, as well as descriptions of interesting wave behavior in the infrared and optical regimes with custom-designed nanostructures. They then discuss the generation, multiplexing, and propagation of vortex waves at the microwave and millimeter-wave frequencies. Finally, the selected contributions discuss several representative practical applications of vortex waves from a system perspective. With coverage that incorporates demonstration examples from a wide range of related sub-areas, this essential edited volume also offers: Thorough introductions to the generation of optical vortex beams and transformation optical vortex wave synthesizers Comprehensive explorations of millimeter-wave metasurfaces for high-capacity and broadband generation of vector vortex beams, as well as orbital angular momentum (OAM) detection and its observation in second harmonic generations Practical discussions of microwave SPP circuits and coding metasurfaces for vortex beam generation and OAM-based structured radio beams and their applications In-depth examinations and explorations of OAM multiplexing for wireless communications, wireless power transmission, as well as quantum communications and simulations Perfect for students of wireless communications, antenna/RF design, optical communications, and nanophotonics, Electromagnetic Vortices: Wave Phenomena and Engineering Applications is also an indispensable resource for researchers in academia, at large defense contractors, and in government labs.

Electromagnetic Wave Propagation, Radiation, and Scattering
Electromagnetic Wave Propagation, Radiation, and Scattering

Author: Akira Ishimaru

Publisher: John Wiley & Sons

Published: 2017-08-09

Total Pages: 1045

ISBN-13: 1119079535

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One of the most methodical treatments of electromagnetic wave propagation, radiation, and scattering—including new applications and ideas Presented in two parts, this book takes an analytical approach on the subject and emphasizes new ideas and applications used today. Part one covers fundamentals of electromagnetic wave propagation, radiation, and scattering. It provides ample end-of-chapter problems and offers a 90-page solution manual to help readers check and comprehend their work. The second part of the book explores up-to-date applications of electromagnetic waves—including radiometry, geophysical remote sensing and imaging, and biomedical and signal processing applications. Written by a world renowned authority in the field of electromagnetic research, this new edition of Electromagnetic Wave Propagation, Radiation, and Scattering: From Fundamentals to Applications presents detailed applications with useful appendices, including mathematical formulas, Airy function, Abel’s equation, Hilbert transform, and Riemann surfaces. The book also features newly revised material that focuses on the following topics: Statistical wave theories—which have been extensively applied to topics such as geophysical remote sensing, bio-electromagnetics, bio-optics, and bio-ultrasound imaging Integration of several distinct yet related disciplines, such as statistical wave theories, communications, signal processing, and time reversal imaging New phenomena of multiple scattering, such as coherent scattering and memory effects Multiphysics applications that combine theories for different physical phenomena, such as seismic coda waves, stochastic wave theory, heat diffusion, and temperature rise in biological and other media Metamaterials and solitons in optical fibers, nonlinear phenomena, and porous media Primarily a textbook for graduate courses in electrical engineering, Electromagnetic Wave Propagation, Radiation, and Scattering is also ideal for graduate students in bioengineering, geophysics, ocean engineering, and geophysical remote sensing. The book is also a useful reference for engineers and scientists working in fields such as geophysical remote sensing, bio–medical engineering in optics and ultrasound, and new materials and integration with signal processing.

Fields and Waves in Communication Electronics
Fields and Waves in Communication Electronics

Author: Simon Ramo

Publisher: Wiley

Published: 1994-02-09

Total Pages: 864

ISBN-13: 9780471585510

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This comprehensive revision begins with a review of static electric and magnetic fields, providing a wealth of results useful for static and time-dependent fields problems in which the size of the device is small compared with a wavelength. Some of the static results such as inductance of transmission lines calculations can be used for microwave frequencies. Familiarity with vector operations, including divergence and curl, are developed in context in the chapters on statics. Packed with useful derivations and applications.

Applications of Electromagnetic Waves
Applications of Electromagnetic Waves

Author: Reza K. Amineh

Publisher: MDPI

Published: 2021-01-20

Total Pages: 242

ISBN-13: 303936300X

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Electromagnetic (EM) waves carry energy through propagation in space. This radiation associates with entangled electric and magnetic fields which must exist simultaneously. Although all EM waves travel at the speed of light in vacuum, they cover a wide range of frequencies called the EM spectrum. The various portions of the EM spectrum are referred to by various names based on their different attributes in the emission, transmission, and absorption of the corresponding waves and also based on their different practical applications. There are no certain boundaries separating these various portions, and the ranges tend to overlap. Overall, the EM spectrum, from the lowest to the highest frequency (longest to shortest wavelength) contains the following waves: radio frequency (RF), microwaves, millimeter waves, terahertz, infrared, visible light, ultraviolet, X-rays, and gamma rays. This Special Issue consists of sixteen papers covering a broad range of topics related to the applications of EM waves, from the design of filters and antennas for wireless communications to biomedical imaging and sensing and beyond.