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REAL-TIME THREE-DIMENSIONAL IMAGING OF DIELECTRIC BODIES USING MICROWAVE/MILLIMETER WAVE HOLOGRAPHY A guide to the applications of holographic techniques for microwave and millimeter wave imaging Real-Time Three-Dimensional Imaging of Dielectric Bodies Using Microwave/Millimeter Wave Holography offers an authoritative guide to the field of microwave holography for the specific application of imaging dielectric bodies. The authors--noted experts on the topic--review the early works in the area of optical and microwave holographic imaging and explore recent advances of the microwave and millimeter wave imaging techniques. These techniques are based on the measurement of both magnitude and phase over an aperture and then implementing digital image reconstruction. The book presents developments in the microwave holographic techniques for near-field imaging applications such as biomedical imaging and non-destructive testing of materials. The authors also examine novel holographic techniques to gain super-resolution or quantitative images. The book also includes a discussion of the capabilities and limitations of holographic reconstruction techniques and provides recommendations for overcoming many of the limitations. This important book: Describes the evolution of wide-band microwave holography techniques from synthetic aperture radar principles Explores two major approaches to near-field microwave holography: Using the incident field and Green's function information and using point-spread function of the imaging system Introduces the "diffraction limit" in the resolution for techniques that are based on the Born approximation, and provides techniques to overcome this limit Written for students and research associates in microwave and millimeter wave engineering, Real-Time Three-Dimensional Imaging of Dielectric Bodies Using Microwave/Millimeter Wave Holography reviews microwave and millimeter-wave imaging techniques based on the holographic principles and provides information on the most current developments.
Now in one convenient volume you can have all the information you need on real-world applications of electromagnetic theory, including the prediction, analysis, and measurement of electromagnetic fields and their effects. Radio Frequency Principles and Applications will guide you from the basics of electromagnetic theory to a full range of new and vital applications. Albert A. Smith, Jr. provides a wealth of practical information in an accessible style, without using abstruse theory or requiring complex mathematical derivations. Key topics covered include: Static and time-varying fields and their sources Ground wave propagation Antennas Radio frequency environments Waveforms and spectral analysis Two-wire transmission line theory Extensive references Radio Frequency Principles and Applications is an invaluable reference tool for engineers working in the diverse fields of radio frequency technology such as electromagnetic noise and interference, wave propagation, electromagnetic compatibility, antennas, microwaves, and radio science.
Electrical Engineering Quasioptical Systems Gaussian Beam Quasioptical Propagation and Applications The increasing commercial use of millimeter wavelengths for remote sensing, communications, and radar systems has driven the need for new low-cost, high-performance systems, and with it, the need for quasioptical systems. Advantages of quasioptical propagation include broader bandwidth, lower insertion loss, better polarization purity, and higher power-handling capability. As this book illustrates, quasioptical system design using Gaussian beam propagation is relatively straightforward, yielding valuable insights without requiring extensive computations. Combining a general introduction to Gaussian beams and quasioptical propagation with practical applications, Quasioptical Systems provides a state-of-the-art treatment of the design of low-loss, broadband systems at microwave to submillimeter wavelengths. The approach presented involves utilizing a beam with a Gaussian distribution of field strength perpendicular to its axis, which in turn propagates in a simple, predictable fashion. Features include: A convenient summary of Gaussian beam propagation formulas Extensive coverage of present-day quasioptical components and their performance In-depth coverage of dielectric materials uses at millimeter and submillimeter wavelengths An analysis of lenses and mirrors used as beam focusing elements An integrated approach to quasioptical system design This book will be of key interest to systems designers, antenna engineers, communications and radar systems engineers, and researchers.
This work covers topics such as: microwave circuits; models, modelling, and characterization; S-parameter measurement methods; multi-port and differential mode scattering parameters; stability, stabilization, and gain; and matching networks, attenuators, and phase shifters.
"FRONTIERS IN ELECTROMAGNETICS is the first all–in–one resource to bring in–depth original papers on today′s major advances in long–standing electromagnetics problems. Highly regarded editors Douglas H. Werner and Raj Mittra have meticulously selected new contributed papers from preeminent researchers in the field to provide state–of–the–art discussions on emerging areas of electromagnetics. Antenna and microwave engineers and students will find key insights into current trends and techniques of electromagnetics likely to shape future directions of this increasingly important topic. Each chapter includes a comprehensive analysis and ample references on innovative subjects that range from combining electromagnetic theory with mathematical concepts to the most recent techniques in electromagnetic optimization and estimation. The contributors also present the latest developments in analytical and numerical methods for solving electromagnetics problems. With a level of expertise unmatched in the field, FRONTIERS IN ELECTROMAGNETICS provides readers with a solid foundation to understand this rapidly changing area of technology. Topics covering fast–developing applications in electromagnetics include: ∗ Fractal electrodynamics, fractal antennas and arrays, and scattering from fractally rough surfaces ∗ Knot electrodynamics ∗ The role of group theory and symmetry ∗ Fractional calculus ∗ Lommel and multiple expansions. Professors: To request an examination copy simply e–mail collegeadoption@ieee.org." Sponsored by: IEEE Microwave Theory and Techniques Society, IEEE Antennas and Propagation Society.
Presents numerical algorithms, procedures, and techniques required to solve engineering problems relating to the interactions between electromagnetic fields, fluid flow, and interdisciplinary technology for aerodynamics, electromagnetics, chemical-physics kinetics, and plasmadynamics This book addresses modeling and simulation science and technology for studying ionized gas phenomena in engineering applications. Computational Electromagnetic-Aerodynamics is organized into ten chapters. Chapter one to three introduce the fundamental concepts of plasmadynamics, chemical-physics of ionization, classical magnetohydrodynamics, and their extensions to plasma-based flow control actuators, high-speed flows of interplanetary re-entry, and ion thrusters in space exploration. Chapter four to six explain numerical algorithms and procedures for solving Maxwell's equation in the time domain for computational electromagnetics, plasma wave propagation, and the time-dependent compressible Navier-Stokes equation for aerodynamics. The concluding chapters discuss developments in computational electromagnetic-aerodynamics for multi-fluid models, including chemical kinetics by nonequilibrium thermal excitations, and chemical-physics by electron impact ionization. Integrates interlinking computational model and simulation techniques of aerodynamics and electromagnetics Combines classic plasma drift-diffusion theory and electron impact ionization modeling for electromagnetic-aerodynamic interactions Describes models of internal degrees of freedom for vibration relaxation and electron excitations This book is intended for aerospace researcher and engineers, as well as graduate students in preparation for thesis and dissertation research. Joseph Shang is a Research Professor Emeritus at Wright State University, USA, and a Scientist Emeritus at the Air Force Research Laboratory. He received his PhD in Aerospace Engineering from Ohio State University. Dr. Shang is a pioneer of Computational Fluid Dynamics (CFD) and Computational Electromagnetics (CEM), and led the development of three-dimensional, mass-averaged Navier-Stokes equations simulations for the aerodynamic performance of aerospace vehicles as well as the characteristic-based formulation for solving three-dimensional Maxwell equations in the time domain. He is a fellow of the American Institute of Aeronauts and Astronautics, and serves on the advisory board of the Aerospace Engineering Department. He has written nearly 400 articles and conference papers, as well as 14 book chapters.
Explore the latest research avenues in the field of high-power microwave sources and metamaterialsA stand-alone follow-up to the highly successful High Power Microwave Sources and Technologies, the new High Power Microwave Sources and Technologies Using Metamaterials, demonstrates how metamaterials have impacted the field of high-power microwave sources and the new directions revealed by the latest research. It's written by a distinguished team of researchers in the area who explore a new paradigm within which to consider the interaction of microwaves with material media.Providing contributions from multiple institutions that discuss theoretical concepts as well as experimental results in slow wave structure design, this edited volume also discusses how traditional periodic structures used since the 1940s and 1950s can have properties that, until recently, were attributed to double negative metamaterial structures.The book also includes:* A thorough introduction to high power microwave oscillators and amplifiers, as well as how metamaterials can be introduced as slow wave structures and other components* Comprehensive explorations of theoretical concepts in dispersion engineering for slow wave structure design, including multi-transmission line models and particle-in-cell code virtual prototyping models* Practical discussions of experimental measurements in dispersion engineering for slow wave structure design* In-depth examinations of passive and active components, as well as the temporal evolution of electromagnetic fieldsHigh Power Microwave Sources and Technologies Using Metamaterials is a perfect resource for graduate students and researchers in the areas of nuclear and plasma sciences, microwaves, and antennas.
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