Integrated Active Antennas and Spatial Power Combining

Integrated Active Antennas and Spatial Power Combining

Author: Julio A. Navarro

Publisher: Wiley-Interscience

Published: 1996-08-23

Total Pages: 0

ISBN-13: 9780471049845

DOWNLOAD EBOOK

This is the only book currently available that covers this subject. The authors piece together information from diverse areas which is essential to understand integrated and integrated active antennas. Emphasis is placed on active antennas and power combining applications, consolidating the work from numerous researchers. Early chapters lay the foundation for oscillator, antenna, array and power combining theory. Chapter five discusses important testing parameters and techniques for active antenna measurements and includes definitions for equivalent isotropic radiated power, locking gain and locking bandwidth. The last chapter sheds light on beam steering, a more recent development in active antenna arrays. Contains over 200 illustrations.


EM Detection of Concealed Targets

EM Detection of Concealed Targets

Author: David J. Daniels

Publisher: John Wiley & Sons

Published: 2009-11-25

Total Pages: 308

ISBN-13: 047053981X

DOWNLOAD EBOOK

THE LATEST EM TECHNIQUES FOR DETECTING CONCEALED TARGETS, WHETHER EXPLOSIVES, WEAPONS, OR PEOPLE Extensively illustrated from basic principles to system design, the fundamental concepts of RF, microwave, millimeter wave, and terahertz detection systems and techniques to find concealed targets are explained in this publication. These concealed targets may be explosive devices or weapons, which can be buried in the ground, concealed in building structures, hidden under clothing, or inside luggage. Concealed targets may also be people who are stowaways or victims of an avalanche or earthquake. Although much information is available in conference proceedings and professional society publications, this book brings all the relevant information in a single, expertly written and organized volume. Readers gain an understanding of the physics underlying electromagnetic (EM) detection methods, as well as the factors that affect the performance of EM detection equipment, helping them choose the right type of equipment and techniques to meet the demands of particular tasks. Among the topics covered are: Ultra-wideband radar and ground-penetrating radar Millimeter, sub-millimeter, and terahertz systems Radar systems including Doppler, harmonic, impulse, FMCW, and holographic Radiometric systems Nuclear quadrupole resonance systems Author David Daniels has many years of experience designing and deploying EM systems to detect concealed targets. As a result, this publication is essential for scientists and engineers who are developing or using EM equipment and techniques for a diverse range of purposes, including homeland security, crime prevention, or the detection of persons.


Wideband, Multiband, and Smart Reconfigurable Antennas for Modern Wireless Communications

Wideband, Multiband, and Smart Reconfigurable Antennas for Modern Wireless Communications

Author: Matin, Mohammad A.

Publisher: IGI Global

Published: 2015-08-26

Total Pages: 440

ISBN-13: 1466686464

DOWNLOAD EBOOK

Modern society thrives on communication that is instant and available at all times, a constant exchange of information that encompasses everything from video streaming to GPS navigation. Experts even suggest that in the near future everything from our cars to our kitchen appliances will be connected to the internet, a feat that would not be possible without advanced wireless technology. Wideband, Multiband, and Smart Reconfigurable Antennas for Modern Wireless Communications showcases current trends and novel approaches in the design and analysis of the antennas that make wireless applications possible, while also identifying unique integration opportunities for antennas and wireless applications to work together. By featuring both theoretical and experimental approaches to integration, this book highlights specific design issues to assist a wide-range of readers including students, researchers, academics, and industry practitioners. This publication features chapters on a broad scope of topics including algorithms and antenna optimization, wireless infrastructure development, wireless applications of intelligent algorithms, antenna architecture, and antenna reconfiguration techniques.


Electromagnetic Propagation in Multi-Mode Random Media

Electromagnetic Propagation in Multi-Mode Random Media

Author: Harrison E. Rowe

Publisher: John Wiley & Sons

Published: 1999-03-05

Total Pages: 256

ISBN-13: 9780471110033

DOWNLOAD EBOOK

Analytische Methoden zur Berechnung der Übertragungsstatistik in einer Vielzahl von Systemen mit vielen Moden und Zufallsfehlern stellt dieses Buch vor. Das Thema ist für zahlreiche industrielle Anwendungsfelder, beispielsweise die Kommunikation, die Faseroptik, Radare und Sensoren von Bedeutung. (03/99)


Coplanar Waveguide Circuits, Components, and Systems

Coplanar Waveguide Circuits, Components, and Systems

Author: Rainee N. Simons

Publisher: John Wiley & Sons

Published: 2004-04-07

Total Pages: 461

ISBN-13: 0471463930

DOWNLOAD EBOOK

Up-to-date coverage of the analysis and applications of coplanar waveguides to microwave circuits and antennas The unique feature of coplanar waveguides, as opposed to more conventional waveguides, is their uniplanar construction, in which all of the conductors are aligned on the same side of the substrate. This feature simplifies manufacturing and allows faster and less expensive characterization using on-wafer techniques. Coplanar Waveguide Circuits, Components, and Systems is an engineer's complete resource, collecting all of the available data on the subject. Rainee Simons thoroughly discusses propagation parameters for conventional coplanar waveguides and includes valuable details such as the derivation of the fundamental equations, physical explanations, and numerical examples. Coverage also includes: Discontinuities and circuit elements Transitions to other transmission media Directional couplers, hybrids, and magic T Microelectromechanical systems based switches and phase shifters Tunable devices using ferroelectric materials Photonic bandgap structures Printed circuit antennas


Electromagnetic Simulation Techniques Based on the FDTD Method

Electromagnetic Simulation Techniques Based on the FDTD Method

Author: W. Yu

Publisher: John Wiley & Sons

Published: 2009-09-15

Total Pages: 221

ISBN-13: 0470502037

DOWNLOAD EBOOK

Bridges the gap between FDTD theory and the implementation of practical simulation techniques This is the first publication that guides readers step by step through the implementation of electromagnetic simulation techniques based on FDTD methods. These simulation techniques serve as an essential bridge between FDTD methods and their applications. Moreover, the book helps readers better understand the underlying logic of FDTD methods so that they can design FDTD projects using either commercial electromagnetic software packages or their own codes in order to solve practical engineering problems. The book begins with two chapters that introduce the basic concepts of the 3-D Cartesian FDTD method, followed by discussions of advanced FDTD methods such as conformal techniques, dispersive media, circuit elements, and near-to-far field transformation. Next, the book: Presents basic concepts of parallel processing techniques and systems, including parallel FDTD techniques and systems Explores simulation techniques based on FDTD methods Illustrates practical simulation techniques using engineering applications Introduces advanced simulation techniques Each chapter concludes with references to help readers investigate particular topics in greater depth. Each chapter also includes problem sets that challenge readers to put their new FDTD and simulation skills into practice. By bridging the gap between FDTD theory and practical simulation techniques, this publication is an invaluable guide for students and engineers who need to solve a wide range of design problems in RF, antenna, and microwave engineering.


Solar Cells and Their Applications

Solar Cells and Their Applications

Author: Lewis M. Fraas

Publisher: John Wiley & Sons

Published: 2010-10-29

Total Pages: 498

ISBN-13: 1118024052

DOWNLOAD EBOOK

A major update of solar cell technology and the solar marketplace Since the first publication of this important volume over a decade ago, dramatic changes have taken place with the solar market growing almost 100-fold and the U.S. moving from first to fourth place in the world market as analyzed in this Second Edition. Three bold new opportunities are identified for any countries wanting to improve market position. The first is combining pin solar cells with 3X concentration to achieve economic competitiveness near term. The second is charging battery-powered cars with solar cell generated electricity from arrays in surrounding areas including the car owners' homes while simultaneously reducing their home electricity bills by over ninety percent. The third is formation of economic "unions" of sufficient combined economic size to be major competitors. In this updated edition, feed-in tariffs are identified as the most effective approach for public policy. Reasons are provided to explain why pin solar cells outperform more traditional pn solar cells. Field test data are reported for nineteen percent pin solar cells and for ~500X concentrating systems with bare cell efficiencies approaching forty percent. Paths to bare cell efficiencies over fifty percent are described, and key missing program elements are identified. Since government support is needed for new technology prototype integration and qualification testing before manufacturing scale up, the key economic measure is identified in this volume as the electricity cost in cents per kilowatt-hour at the complete installed system level, rather than just the up-front solar cell modules' costs in dollars per watt. This Second Edition will benefit technologists in the fields of solar cells and systems; solar cell researchers; power systems designers; academics studying microelectronics, semiconductors, and solar cells; business students and investors with a technical focus; and government and political officials developing public policy.


Nonlinear Optics

Nonlinear Optics

Author: E. G. Sauter

Publisher: John Wiley & Sons

Published: 1996-09-03

Total Pages: 232

ISBN-13: 9780471148609

DOWNLOAD EBOOK

The first complete guide to nonlinear theory and practice for engineers Nonlinear Optics is a highly accessible, applications-oriented introduction to a new and rapidly growing field. An indispensable resource for both electrical engineering students and professionals working in the telecommunications and optoelectronics industry, it: * Treats the subject of nonlinear optics in purely classical terms for electrical engineers * Offers numerous real-world examples clearly demonstrating the connection between theory and practical application * Features helpful chapter-end problems and numerous examples * Explores current and future applications of nonlinear optics in telecommunications, computers, and other fields Due to its many applications in fiber-optic communications and optoelectronics the propagation of light through nonlinear media is an increasingly important topic among electrical engineers. Unfortunately, books geared to the specific concerns of electrical engineering students and professionals in the telecommunications and optoelectronics industry continue to be in short supply. This book is designed to fill that gap. Nonlinear Optics is a complete, self-contained, applications-oriented introduction to the field. In an effort to make this book as accessible as possible to its intended audience, E. G. Sauter has foregone quantum mechanical descriptions, choosing instead to treat the subject of nonlinear optics in purely classical terms. He has also included numerous real-world examples that clearly demonstrate the connection between theory and practical application. The book begins with the theoretical foundations for the practical discussions that follow. Dr. Sauter treats the basic relations between polarization and electric field strength, the different nonlinear effects of polarizations of order two and three, wave propagation of complex phasors in nonlinear media and anisotropic media, and the conservation of energy and momentum in nonlinear processes. Over the six chapters that follow, these theories are applied to specific cases, including the linear electrooptic effects; second harmonic generation; parametric effects; four-wave mixing, including the Raman and Brillouin effects; and the optical Kerr effect. The remaining chapters present in-depth discussions of pulse propagation, solitons, and nonlinear effects in glass fibers. Helpful problems appear at the end of each chapter, and numerous worked and unworked examples are scattered throughout the text to elucidate principles and clarify complex material. A highly accessible, applications-oriented introduction to a new and rapidly growing field, Nonlinear Optics is an indispensable resource for both electrical engineering students and working professionals.


Microstrip Filters for RF / Microwave Applications

Microstrip Filters for RF / Microwave Applications

Author: Jia-Sheng Hong

Publisher: John Wiley & Sons

Published: 2011-01-06

Total Pages: 608

ISBN-13: 1118002121

DOWNLOAD EBOOK

The first edition of “Microstrip Filters for RF/Microwave Applications” was published in 2001. Over the years the book has been well received and is used extensively in both academia and industry by microwave researchers and engineers. From its inception as a manuscript the book is almost 8 years old. While the fundamentals of filter circuits have not changed, further innovations in filter realizations and other applications have occurred with changes in the technology and use of new fabrication processes, such as the recent advances in RF MEMS and ferroelectric films for tunable filters; the use of liquid crystal polymer (LCP) substrates for multilayer circuits, as well as the new filters for dual-band, multi-band and ultra wideband (UWB) applications. Although the microstrip filter remains as the main transmission line medium for these new developments, there has been a new trend of using combined planar transmission line structures such as co-planar waveguide (CPW) and slotted ground structures for novel physical implementations beyond the single layer in order to achieve filter miniaturization and better performance. Also, over the years, practitioners have suggested topics that should be added for completeness, or deleted in some cases, as they were not very useful in practice. In view of the above, the authors are proposing a revised version of the “Microstrip Filters for RF/Microwave Applications” text and a slightly changed book title of “Planar Filters for RF/Microwave Applications” to reflect the aforementioned trends in the revised book.


Fundamentals of Wavelets

Fundamentals of Wavelets

Author: Jaideva C. Goswami

Publisher: John Wiley & Sons

Published: 2011-03-08

Total Pages: 310

ISBN-13: 0470934646

DOWNLOAD EBOOK

Most existing books on wavelets are either too mathematical or they focus on too narrow a specialty. This book provides a thorough treatment of the subject from an engineering point of view. It is a one-stop source of theory, algorithms, applications, and computer codes related to wavelets. This second edition has been updated by the addition of: a section on "Other Wavelets" that describes curvelets, ridgelets, lifting wavelets, etc a section on lifting algorithms Sections on Edge Detection and Geophysical Applications Section on Multiresolution Time Domain Method (MRTD) and on Inverse problems