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This book delves deeply into the substrate integrated suspended line antenna technologies and evaluates its potential to replace conventional three-dimensional (3D) metal-based antennas. Over the years, studies on substrate integrated suspended line antennas have captivated engineers and scientists from the antennas and related engineering fields, all aiming to achieve low-cost and low-loss characteristics. The book establishes a fundamental framework for this topic, while emphasizing the importance of substrate integrated suspended line antennas in the wireless communication and radar systems. It is designed for undergraduate and graduate students who are interested in antenna technology, researchers investigating substrate integrated technology, and antenna engineers working on low-cost and low-loss antennas and arrays.
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This compact textbook introduces the most important elements of optical networks and uses them to solve practical problems by engineering solutions. The main topics are glass fibers, optical transmitters and receivers, modulation of laser light for high bit rates, elements of passive (couplers, distributors) and active (switches, optical amplifiers) networks, influence of nonlinearities in optical transmission as well as integration into the global network. Examples describe advantages and limits of optical data transfer in networks. In addition to each topic, practical exercises and questions are given. Difficult mathematical relationships and formulas are explained and simulated using a mathematical program. This textbook has been recommended and developed for university courses in Germany, Austria and Switzerland. The content Photonics, wave-guide structures, glass fibers – Parameters and properties of optical fibers: attenuation and dispersion, transmission bandwidth – Optical transmitters, modulation of transmitters – Optical amplifiers – Optical receivers – Active and passive optical couplers and switches – Nonlinear processes in glass fibers, solitons – Active and passive optical networks Target Groups Students of Bachelor and Master courses at Universities of Applied Sciences Students of Bachelor courses at Technical Universities Practitioners in the fields of telecommunications and communication technology Life-long learners About the author Prof. Dr. Volkmar Brückner is a professor emeritus at University of Telecommunication in Leipzig. He has more than 25 years of national and international expertise in the fields of laser optics, fiber communication technology and optoelectronics.
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This book presents a step-by-step discussion of the design and development of radio frequency identification (RFID) and RFID-enabled sensors on flexible low cost substrates for UHF frequency bands. Various examples of fully function building blocks (design and fabrication of antennas, integration with ICs and microcontrollers, power sources, as well as inkjet-printing techniques) demonstrate the revolutionary effect of this approach in low cost RFID and RFID-enabled sensors fields. This approach could be easily extended to other microwave and wireless applications as well. The first chapter describes the basic functionality and the physical and IT-related principles underlying RFID and sensors technology. Chapter two explains in detail inkjet-printing technology providing the characterization of the conductive ink, which consists of nano-silver-particles, while highlighting the importance of this technology as a fast and simple fabrication technique especially on flexible organic substrates such as Liquid Crystal Polymer (LCP) or paper-based substrates. Chapter three demonstrates several compact inkjet-printed UHF RFID antennas using antenna matching techniques to match IC's complex impedance as prototypes to provide the proof of concept of this technology. Chapter four discusses the benefits of using conformal magnetic material as a substrate for miniaturized high-frequency circuit applications. In addition, in Chapter five, the authors also touch up the state-of-the-art area of fully-integrated wireless sensor modules on organic substrates and show the first ever 2D sensor integration with an RFID tag module on paper, as well as the possibility of 3D multilayer paper-based RF/microwave structures. Table of Contents: Radio Frequency Identification Introduction / Flexible Organic Low Cost Substrates / Benchmarking RFID Prototypes on Organic Substrates / Conformal Magnetic Composite RFID Tags / Inkjet-Printed RFID-Enabled Sensors.
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The subject of this book is the fast-developing area of research known as metamaterials/metasurfaces and some of their engineering applications. This book comprehensively presents the state of the art of metamaterials/metasurfaces from theory to applications. The theoretical side includes electrodynamics of left-handed medium, generalized Snell's law, digital coding metamaterials/metasurfaces, group theory of metamaterials, information metamaterials and metasurfaces, etc. On the application side, a wide range of design examples are discussed, including metamaterial antennas, electromagnetic interference, frequency selective surfaces, wireless power transmission and energy harvesting, cloaking and radar cross section reduction, orbital angular momentum, wireless communication, imaging, etc. The book provides researchers, engineers, and graduate students with a variety of new discoveries, results, information, and knowledge in the field of metamaterials and metasurfaces.
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The book focuses on sparse multi-sensor array systems and design approaches. Both principles and engineering practice have been addressed, with more weight placed on algorithm development. This is achieved by providing an in-depth study on sparse sensing for several major multi-sensor array applications such as beam-pattern synthesis, adaptive beamforming, target detection, arrival angle estimation, and dual-functional radar communications. Sparsity sensed in multi-sensor arrays refers to the sparse property of the spatial spectrum sensed. The exploitation of the sparsity in the sensed can significantly enhance the performance of signal processing systems. The comprehensive and systematic treatment of theory and practice in different array applications is one of the major features of the book, which is particularly suited for readers who are interested to learn practical solutions in array signal processing. The book benefits researchers, engineers, and graduate students in the fields of signal processing, electrical engineering, telecommunications, etc.
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This textbook clarifies synchronization issues in telecommunications in an easy-to-follow way, focusing less on theory and more on practical aspects. The book is intended for a wide range of readers interested in the basic synchronization concepts in their wide application for development, maintenance, and conformity assessment of telecommunications equipment and networks. The authors show how, though synchronization in telecommunications has experienced rapid development, the foundational theory and the basic definitions, mathematical tools, and well-developed “classical” technologies have remained. The authors have studied the ITU-T, ETSI, IEEE standards, and extracted practical topics of synchronization. The collection of numerous training problems, practical examples, and case studies help the readers not only to find the answers to their current questions but also to get a common view of synchronization’s role in the modern telecommunications. The book is geared towards students of telecommunications but can also be useful for telecom engineers and for training/workshops for telecom engineers concerning synchronization topics. Presents synchronization issues in telecommunications, focusing less on theory and more on practical aspects; Includes a variety of examples and case studies to demonstrate the continuity of synchronization techniques; Features of suite of classroom materials including exercises, summary tests & questions, correct answers and solutions (selectively) by chapters.
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This book provides the basic concepts of electronic digital communication, applied to professional practice in communications engineering. The book begins with basic concepts of information theory and explains the need for digital communications, continuing with the basic schemes of digital communication prior to multiplexing, which applies to current digital communication networks, such as LTE, 5G and 6G. The book is intended for researchers, professionals, and second-year students of electrical engineering, electronics or telecommunications. It can also be useful to students in computer science, engineering physics or other disciplines who develop projects involving electronic communication systems. Presents the basic concepts of electronic digital communication, applied to practice in communications engineering; Provides a bridge between students and professionals in telecommunications engineering; Includes basic concepts of information theory and explains the need for digital communications.
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The book focuses on optical wireless communication systems. It summarises the author's work on optical wireless communication during the implementation of relevant scientific research plans. The main contents include the research status and progress of optical wireless communication, including the author's own work in this field and the research progress of domestic and foreign scholars in related fields. The key technologies, key components, modulation and coding methods, influencing factors of coherent optical communication, underwater optical communication, visible light communication, and orbital angular momentum involved in wireless optical communication are analysed, and their research progress and development trends are presented. It is particularly suitable for readers interested in the field of wireless optical communications. This book can benefit researchers, engineers and graduate students in the field of telecommunications. Suitable for engineering and technical personnel involved in optical communications, university teachers, postgraduate students and advanced undergraduates.
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This book provides readers with a good overview of some of most recent advances in the field of CdTe and CdZnTe detector technology for medical imaging, industrial testing and security scanning, especially as it pertains to new applications. There will be a good mixture of general chapters in both technology and applications inthe X-ray testing. The book will have an in-depth review of the research topics from leading world specialists in the field. The conversion of the X-ray and gamma-ray signal into analogue/digital value will be covered in some chapters. Some would also provide a review of CMOS chips for CdTe and CdZnTe image sensors. This book serves as an excellent reference for people already working in the field as well as for people wishing to enter it. Enables readers to develop deeper understanding of CdTe and CdZnTe detector technology for medical imaging; Introduces novel CdTe and CdZnTe technologies and analyzes electronics for CdTe and CdZnTe; Covers a broad range of topics, including analysis of how to optimize these CdTe and CdZnTe and their crystal growth.
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This book provides in-depth exposure to emerging technologies and recent advancements in RF, Microwave, and Millimetre Wave Technologies. The book covers the basic concepts along with the recent advancements in designing and developing antennas and circuits for the latest technologies. The concepts of mode compression, Full Duplex communication, massive MIMO, frequency selective surfaces, reflectarrays, and metasurfaces have been discussed in detail. Various types of antennas, such as electrically small antennas, textile antennas, dielectric resonator antennas, etc., to be used for the latest wireless devices, RFID applications are also thoroughly explored. The concept of machine learning to develop data-driven models for antenna design is also discussed briefly to provide readers with an introduction to the ML algorithms. The readers will be able to understand the theoretical concepts and practical design aspects of various antennas, high-frequency circuits, and device modeling. The target audience includes but is not limited to undergraduates, post-graduates, research scholars, academicians, scientists, and professionals who are interested in getting the latest knowledge in the field of RF, Microwave, and Millimetre Wave Technologies. Presents recent advancements in RF, microwave, and millimetre wave technologies; Covers special topics on mode compression, full-duplex communication, reflectarrays, and metasurfaces; Geared towards those interested in latest knowledge in RF, microwave, and millimetre wave technologies.
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