Scanner Modification and Antennas

Scanner Modification and Antennas PDF

Author: Jerry Pickard

Publisher: Index Publishing Group

Published: 1998-02

Total Pages: 164

ISBN-13: 9781568661209

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Easy ways to unlock the hidden riches in every scanner. Most scanner mod books require considerable electronic knowledge and technical skills, leaving many of America's 12 million scanner owners unable to unlock the wide array of riches hidden away inside their units. Here's the first book to show easily-performed multiple modifications to the most popular scanners, new and old.

Scanner Modifications And Antennas

Scanner Modifications And Antennas PDF

Author: Jerry Pickard

Publisher: Paladin Press

Published: 1999-09-01

Total Pages: 0

ISBN-13: 9781581600414

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Whether you're scanning for valuable emergency information or just our of curisity, you want to get the most out of your equipment. This book will teach you how to get your straight-out-of-the-box scaner working to its fullest potential. Instructions are written as simply as possible so that just about anyone who can determine the hot end of a soldering iron can modify his or her scanner.

Compact Slot Array Antennas for Wireless Communications

Compact Slot Array Antennas for Wireless Communications PDF

Author: Alan J. Sangster

Publisher: Springer

Published: 2018-11-11

Total Pages: 350

ISBN-13: 3030017532

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This book describes and provides design guidelines for antennas that achieve compactness by using the slot radiator as the fundamental building block within a periodic array, rather than a phased array. It provides the basic electromagnetic tools required to design and analyse these novel antennas, with sample calculations where relevant. The book presents a focused introduction and valuable insights into the relevant antenna technology, together with an overview of the main directions in the evolving technology of compact planar arrays. While the book discusses the historical evolution of compact array antennas, its main focus is on summarising the extensive body of literature on compact antennas. With regard to the now ubiquitous slot radiator, it seeks to demonstrate how, despite significant antenna size reductions that at times even seem to defy the laws of physics, desirable radiation pattern properties can be preserved. This is supported by an examination of recent advances in frequency selective surfaces and in metamaterials, which can, if handled correctly, be used to facilitate physics-defying designs. The book offers a valuable source of information for communication systems and antenna design engineers, especially thanks to its overview of trends in compact planar arrays, yet will also be of interest to students and researchers, as it provides a focused introduction and insights into this highly relevant antenna technology.

Antenna Theory

Antenna Theory PDF

Author: Constantine A. Balanis

Publisher: John Wiley & Sons

Published: 2016-02-01

Total Pages: 1109

ISBN-13: 1118642066

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Updated with color and gray scale illustrations, a companion website housing supplementary material, and new sections covering recent developments in antenna analysis and design This book introduces the fundamental principles of antenna theory and explains how to apply them to the analysis, design, and measurements of antennas. Due to the variety of methods of analysis and design, and the different antenna structures available, the applications covered in this book are made to some of the most basic and practical antenna configurations. Among these antenna configurations are linear dipoles; loops; arrays; broadband antennas; aperture antennas; horns; microstrip antennas; and reflector antennas. The text contains sufficient mathematical detail to enable undergraduate and beginning graduate students in electrical engineering and physics to follow the flow of analysis and design. Readers should have a basic knowledge of undergraduate electromagnetic theory, including Maxwell’s equations and the wave equation, introductory physics, and differential and integral calculus. Presents new sections on flexible and conformal bowtie, Vivaldi antenna, antenna miniaturization, antennas for mobile communications, dielectric resonator antennas, and scale modeling Provides color and gray scale figures and illustrations to better depict antenna radiation characteristics Includes access to a companion website housing MATLAB programs, Java-based applets and animations, Power Point notes, Java-based interactive questionnaires and a solutions manual for instructors Introduces over 100 additional end-of-chapter problems Antenna Theory: Analysis and Design, Fourth Edition is designed to meet the needs of senior undergraduate and beginning graduate level students in electrical engineering and physics, as well as practicing engineers and antenna designers. Constantine A. Balanis received his BSEE degree from the Virginia Tech in 1964, his MEE degree from the University of Virginia in 1966, his PhD in Electrical Engineering from The Ohio State University in 1969, and an Honorary Doctorate from the Aristotle University of Thessaloniki in 2004. From 1964 to 1970, he was with the NASA Langley Research Center in Hampton, VA, and from 1970 to 1983, he was with the Department of Electrical Engineering of West Virginia University. In 1983 he joined Arizona State University and is now Regents' Professor of Electrical Engineering. Dr. Balanis is also a life fellow of the IEEE.

Millimeter-Wave Antennas: Configurations and Applications

Millimeter-Wave Antennas: Configurations and Applications PDF

Author: Jaco du Preez

Publisher: Springer

Published: 2016-06-20

Total Pages: 155

ISBN-13: 3319350684

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This book comprehensively reviews the state of the art in millimeter-wave antennas, traces important recent developments and provides information on a wide range of antenna configurations and applications. While fundamental theoretical aspects are discussed whenever necessary, the book primarily focuses on design principles and concepts, manufacture, measurement techniques, and practical results. Each of the various antenna types scalable to millimeter-wave dimensions is considered individually, with coverage of leaky-wave and surface-wave antennas, printed antennas, integrated antennas, and reflector and lens systems. The final two chapters address the subject from a systems perspective, providing an overview of supporting circuitry and examining in detail diverse millimeter-wave applications, including high-speed wireless communications, radio astronomy, and radar. The vast amount of information now available on millimeter-wave systems can be daunting for researchers and designers entering the field. This book offers readers essential guidance, helping them to gain a thorough understanding based on the most recent research findings and serving as a sound basis for informed decision-making.

Printed Antennas for 5G Networks

Printed Antennas for 5G Networks PDF

Author: Ladislau Matekovits

Publisher: Springer Nature

Published: 2022-04-02

Total Pages: 372

ISBN-13: 3030876055

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The book provides a comprehensive overview of antennas for 5G technology, such as MIMO, multiband antennas, Magneto-Electric Dipole Antenna and PIFA Antenna for 5G networks, phased array antennas for 5G access, beam-forming and beam-steering issues, 5G antennas for specific applications (smartphone, cognitive radio) and advance antenna concept and materials for 5G. The book also covers ooptimizations methods for passive and active devices in mm-Wave 5G networks. It explores topics which influence the design and characterization of antennas such as data rates, high isolation, pattern and spatial diversity, making 5G antennas more suitable for a multipath environment. The book represents a learning tool for researchers in the field, and enables engineers, designers and manufacturers to identify key design challenges of antennas for 5G networks, and characterize novel antennas for 5G networks.

Nonthermal Plasma Surface Modification of Materials

Nonthermal Plasma Surface Modification of Materials PDF

Author: Masaaki Okubo

Publisher: Springer Nature

Published: 2023-12-02

Total Pages: 219

ISBN-13: 9819945062

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This book describes the fundamentals and applicability of the atmospheric-pressure non-thermal plasma surface modification of materials. Non-thermal plasma modification is an effective procedure for chemical activation. In this book, the principles of non-thermal plasma surface modification and its application to various machine parts are described. By reading this book, technologists from a variety of fields can learn about plasma generation and surface treatment technology, which will assist them in performing advanced procedures. This book also explains the basics of atmospheric-pressure plasma and the principle of plasma treatment in an easy-to-understand manner and also provides examples of the application of atmospheric-pressure plasma surface modification technologies to plastics, glass, polymers, and metals. After reading this book, readers can get the knowledge that researchers need to apply the methodology to meet their own research goals. The book is self-contained in the sense that it spans the divide between the fundamentals and more advanced content regarding applications. Many engineers and graduate students working in this field get many helps.

Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications

Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications PDF

Author: Yingjie Jay Guo

Publisher: John Wiley & Sons

Published: 2021-10-26

Total Pages: 338

ISBN-13: 1119712904

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Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications Reviews advances in the design and deployment of antenna arrays for future generations of wireless communication systems, offering new solutions for the telecommunications industry Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications addresses the challenges in designing and deploying antennas and antenna arrays which deliver 6G and beyond performance with high energy efficiency and possess the capability of being immune to interference caused by different systems mounted on the same platforms. This timely and authoritative volume presents innovative solutions for developing integrated communications networks of high-gain, individually-scannable, multi-beam antennas that are reconfigurable and conformable to all platforms, thus enabling the evolving integrated land, air and space communications networks. The text begins with an up-to-date discussion of the engineering issues facing future wireless communications systems, followed by a detailed discussion of different beamforming networks for multi-beam antennas. Subsequent chapters address problems of 4G/5G antenna collocation, discuss differentially-fed antenna arrays, explore conformal transmit arrays for airborne platforms, and present latest results on fixed frequency beam scanning leaky wave antennas as well as various analogue beam synthesizing strategies. Based primarily on the authors’ extensive work in the field, including original research never before published, this important new volume: Reviews multi-beam feed networks, array decoupling and de-scattering methods Provides a systematic study on differentially fed antenna arrays that are resistant to interference caused by future multifunctional/multi-generation systems Features previously unpublished material on conformal transmit arrays based on Huygen’s metasufaces and reconfigurable leaky wave antennas Includes novel algorithms for synthesizing and optimizing thinned massive arrays, conformal arrays, frequency invariant arrays, and other future arrays Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications is an invaluable resource for antenna engineers and researchers, as well as graduate and senior undergraduate students in the field.

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