Do you design and build vacuum electron devices, or work with the systems that use them? Quickly develop a solid understanding of how these devices work with this authoritative guide, written by an author with over fifty years of experience in the field. Rigorous in its approach, it focuses on the theory and design of commercially significant types of gridded, linear-beam, crossed-field and fast-wave tubes. Essential components such as waveguides, resonators, slow-wave structures, electron guns, beams, magnets and collectors are also covered, as well as the integration and reliable operation of devices in microwave and RF systems. Complex mathematical analysis is kept to a minimum, and Mathcad worksheets supporting the book online aid understanding of key concepts and connect the theory with practice. Including coverage of primary sources and current research trends, this is essential reading for researchers, practitioners and graduate students working on vacuum electron devices.

Combining cutting-edge technologies and techniques with existing approaches, this book equips you with the tools and knowledge needed to develop new energy-efficient and environmentally friendly RFID systems. As well as covering RFID basics, a wide range of new technologies is discussed, including biodegradable and recyclable material use, energy scavenging, passive and chipless architectures, RFID passive sensors, networked RFID and RFID sensors, organic electronic devices, textile electronics, and distributed and wide area electronics. Providing a clear description of how RFID technology can enable the evolution of the Internet of Things, the book guides you down the path to facing new challenges as we move towards ubiquitous sensing for smart environments and a networked society. This is an ideal guide for researchers in academia and industry, technical managers, and graduate students in RF and wireless communications.

Using a systems framework, this textbook provides a clear and comprehensive introduction to the performance, analysis and design of radio systems for students and practising engineers. Presented within a consistent framework, the first part of the book describes the fundamentals of the subject: propagation, noise, antennas and modulation. The analysis and design of radios, including RF circuit design and signal processing, is covered in the second half of the book. The former is presented with minimal involvement of Smith charts, enabling students to grasp the fundamentals more readily. Both traditional and software-defined/direct sampling technology are described, with pros and cons of each strategy explained. Numerous examples within the text involve realistic analysis and design activities, and emphasize how practical experiences may differ from theory or taught procedures. End-of-chapter problems are provided, as are a password-protected solutions manual and lecture slides to complete the teaching package for instructors.

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. BOOST YOUR HAM RADIO'S CAPABILITIES USING LOW-COST ARDUINO MICROCONTROLLER BOARDS!Do you want to increase the functionality and value of your ham radio without spending a lot of money? This book will show you how! Arduino Projects for Amateur Radio is filled with step-by-step microcontroller projects you can accomplish on your own--no programming experience necessary. After getting you set up on an Arduino board, veteran ham radio operators Jack Purdum (W8TEE) and Dennis Kidder (W6DQ) start with a simple LCD display and move up to projects that can add hundreds of dollars' worth of upgrades to existing equipment. This practical guide provides detailed instructions, helpful diagrams, lists of low-cost parts and suppliers, and hardware and software tips that make building your own equipment even more enjoyable. Downloadable code for all of the projects in the book is also available. Do-it-yourself projects include: LCD shield Station timer General purpose panel meter Dummy load and watt meter CW automatic keyer Morse code decoder PS2 keyboard CW encoder Universal relay shield Flexible sequencer Rotator controller Directional watt and SWR meter Simple frequency counter DDS VFO Portable solar power source

Towards location aware mobile ad hoc sensors
A Systems Engineering Approach to Wireless Information Networks
The Second Edition of this internationally respected textbook brings readers fully up to date with the myriad of developments in wireless communications. When first published in 1995, wireless communications was synonymous with cellular telephones. Now wireless information networks are the most important technology in all branches of telecommunications. Readers can learn about the latest applications in such areas as ad hoc sensor networks, home networking, and wireless positioning.
Wireless Information Networks takes a systems engineering approach: technical topics are presented in the context of how they fit into the ongoing development of new systems and services, as well as the recent developments in national and international spectrum allocations and standards. The authors have organized the myriad of current and emerging wireless technologies into logical categories:
* Introduction to Wireless Networks presents an up-to-the-moment discussion of the evolution of the cellular industry from analog cellular technology to 2G, 3G, and 4G, as well as the emergence of WLAN and WPAN as broadband ad hoc networks
* Characteristics of Radio Propagation includes new coverage of channel modeling for space-time, MIMO, and UWB communications and wireless geolocation networks
* Modem Design offers new descriptions of space-time coding, MIMO antenna systems, UWB communications, and multi-user detection and interference cancellation techniques used in CDMA networks
* Network Access and System Aspects incorporates new chapters on UWB systems and RF geolocations, with a thorough revision of wireless access techniques and wireless systems and standards
Exercises that focus on real-world problems are provided at the end of each chapter. The mix of assignments, which includes computer projects and questionnaires in addition to traditional problem sets, helps readers focus on key issues and develop the skills they need to solve actual engineering problems. A separate Instructor's Manual is available that includes a solution book and supporting material for preparing class presentations. Extensive references are provided for those readers who would like to explore particular topics in greater depth.
With its emphasis on knowledge-building to solve problems, this is an excellent graduate-level textbook. Like the previous edition, this latest edition will also be a standard reference for the telecommunications industry.

An Instructor's Manual presenting detailed solutions to all the problems in the book is available from the Wiley editorial department.

With nearly 7 billion mobile phone subscriptions worldwide, mobility and computing have become pervasive in our society and business. Moreover, new mobile multimedia communication services are challenging telecommunication operators. To support the significant increase in multimedia traffic-especially video-over wireless networks, new technological infrastructure must be created. Cognitive Radio Networks (CRNs) are widely regarded as one of the most promising technologies for future wireless communications. This book explains how to efficiently deliver video, audio, and other data over CRNs. Covering advanced algorithms, protocols, and hardware-/software-based experiments, this book describes how to encode video in a prioritized way to send to dynamic radio links. It discusses different FEC codes for video reliability and explains how different machine learning algorithms can be used for video quality control. It also explains how to use readily available software tools to build a CRN simulation model. This book explains both theoretical and experimental designs. It describes how universal software radio peripheral (USRP) boards can be used for real-time, high-resolution video transmission. It also discusses how a USRP board can sense the spectrum dynamics and how it can be controlled by GNU Radio software. A separate chapter discusses how the network simulator ns-2 can be used to build a simulated CRN platform.

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Get up and running as a ham radio operator-or just listen in on the shortwave bands! Ham and Shortwave Radio for the Electronics Hobbyist shows you, step by step, how to set up and operate your own ham radio station. It's also perfect for those interested in shortwave listening, without getting a ham radio license. This practical guide covers communications modes, assigned frequency ranges in the United States, details on fixed, mobile, and portable ham stations, antennas, and much more. Ham radio will work even when the Internet and other utilities fail. So get on the air and keep the lines of communication open in any situation! Inside, you'll find out all about: Radio waves and how they travel Shortwave and allwave listening Communications modes for ham radio operators, including using the Internet as a supplement Ham radio licenses and assigned frequency ranges (bands) used in the United States Wave-propagation characteristics and tips on the bands best suited for use at different times of the day, year, and sunspot cycle Selecting and installing equipment for fixed ham radio stations Setting up mobile and portable ham radio stations Antennas and transmission lines for various frequencies and station types How to operate your station using popular voice and digital modes Schematic symbols and Q signals for ham radio operators

"A comprehensive guide for operators, engineers, technicians, marketing staff, and systems managers, explaining the intricacies of designing, installing, and operating a cellular network. Although the volume explains both the theory and practice of cellular systems, it is structured in such a way that nontechnical readers can bypass mathematically oriented sections without losing overall comprehension."–Book News, Inc.

This Fourth Edition of Neil Boucher’s internationally bestselling handbook has been thoroughly updated and expanded to provide comprehensive coverage of the new technologies that are shaping the industry, as well as the important changes brought about by the rapid domination of the cellular markets by digital systems. Encyclopedic in scope, it covers the design, installation, and operations of a cellular network, features concise discussions of best engineering practices, and provides helpful guidelines on critical business issues involved in planning, budgeting, and administering a cellular system.

Authoritative, comprehensive, and up-to-date, The Cellular Radio Handbook, Fourth Edition is an indispensable working resource for telecom designers, operators, and marketers. In addition to covering traditional cellular networks, this book also includes PCS/PCN, WLL, and satellite mobile technology.

Switchmode RF and Microwave Power Amplifiers, Third Edition is an essential reference book on developing RF and microwave switchmode power amplifiers. The book combines theoretical discussions with practical examples, allowing readers to design high-efficiency RF and microwave power amplifiers on different types of bipolar and field-effect transistors, design any type of high-efficiency switchmode power amplifiers operating in Class D or E at lower frequencies and in Class E or F and their subclasses at microwave frequencies with specified output power, also providing techniques on how to design multiband and broadband Doherty amplifiers using different bandwidth extension techniques and implementation technologies. This book provides the necessary information to understand the theory and practical implementation of load-network design techniques based on lumped and transmission-line elements. It brings a unique focus on switchmode RF and microwave power amplifiers that are widely used in cellular/wireless, satellite and radar communication systems which offer major power consumption savings.

The upcoming 5G specifications from 3GPP, to be available in 2018, will include LTE-Advanced Pro as well as a new 5G radio-access technology. This practical and very successful book, written by engineers working closely with 3GPP, gives insight into the newest technologies and standards adopted by 3GPP, with detailed explanations of the specific solutions chosen and their implementation in LTE, LTE-Advanced, and LTE-Advanced Pro, as well as providing a detailed description of the path to 5G and the associated underlying technologies. This edition has been thoroughly revised and updated to reflect the large extensions to LTE as introduced in 3GPP Releases 12 and 13 and the role of LTE in the upcoming 5G era. New to this edition includes updated content on: 4G and 5G Radio Access Spectrum for 4G and 5G Machine-Type Communication Device-to-Device Communication License-assisted Access Full-dimension MIMO Small-cell enhancements, eIMTA, FDD+TDD aggregation, dual connectivity Requirements on and general structure of 5G wireless access, addressing the existing and new usage scenarios for 5G Technical solutions for the new 5G radio-access technology The authors of this book all work at Ericsson Research and have been deeply involved in 3G and 4G development and standardization. They are leading experts in the field and are today actively contributing to the standardization of 4G and 5G within 3GPP.

This book presents the technical characteristics of the two radio network interfaces of mobile 4G, LTE and LTE Advanced, based on Release 8, 9 and 10 of the 3GPP specifications. Points covered include a detailed description of various components of the radio interface. RRC signaling messages used to establish the connection, enabling the security, the paging, the establishment and the release of dedicated and default support and the handover. The PDCP ensures the security of the transmission and allows the recovery during handover and the compression of the headers. The RLC protocol defines the transmission modes with or without acknowledgment. The MAC protocol determines the random access, the data transfer, the timing advance, the scheduling and the discontinuous reception. The physical layer includes a description of the methods of multiplexing (time, frequency and space) and the various signals and physical channels.

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. THE MOST COMPLETE, CURRENT GUIDE TO SIGNALING SYSTEM #7 (SS7)Thoroughly updated to cover the latest advances in the telecommunications industry, Signaling System # 7, Sixth Edition, addresses the impact of emerging technologies and applications, such as Long Term Evolution (LTE) and 4G networks, on SS7. An all-new chapter onDiameter discusses how to successfully implement SS7-to-Diameter interfaces to bridge 3G and 4G networks. Real-world examples, protocol message details, call flows, and effective migration strategies are included in this practical guide. Comprehensive coverage includes: The SS7 network--international and national planes The OSI model SS7 protocols and the protocol stack Signal units Message Transfer Part (MTP), including level 3 Signaling Transport (SIGTRAN) ISDN User Part (ISUP) Signaling Connection Control Part (SCCP) Transaction Capabilities Application Part (TCAP) The evolution to Diameter

The recent history of Africa is characterised by the 'revolution' in information and communication technologies (ICT), specifically in the sector of mobile telephony, which reconsiders the challenges pertaining to identity in African societies. In this book, we follow the manifestation of such dynamic forces in the Hadjeray society in Guera, Tchad, a society that has suffered a history of political violence, mobility and failures. The study shows the role of the Chadian government in the implementation of ICT and explains how government logics have amplified. Through the analysis of the changes in the economic and social spheres, occurring due to mobile telephony, we discover the identity issues that are also informed by the feeling of fear, which is part of the Chadian history of violence. However, the ways in which the Hadjeray adopt this new technology also leave them with a means to escape the logic of violence and disruption. It is mostly a dynamic force that occurs amongst the youth who, by making use of mobile networks, discover another mode of identification, between the ethnic group and the more global identity, and find through it a political voice.

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. A DIY guide to designing and building transistor radios Create sophisticated transistor radios that are inexpensive yet highly efficient. Build Your Own Transistor Radios: A Hobbyist's Guide to High-Performance and Low-Powered Radio Circuits offers complete projects with detailed schematics and insights on how the radios were designed. Learn how to choose components, construct the different types of radios, and troubleshoot your work. Digging deeper, this practical resource shows you how to engineer innovative devices by experimenting with and radically improving existing designs. Build Your Own Transistor Radios covers: Calibration tools and test generators TRF, regenerative, and reflex radios Basic and advanced superheterodyne radios Coil-less and software-defined radios Transistor and differential-pair oscillators Filter and amplifier design techniques Sampling theory and sampling mixers In-phase, quadrature, and AM broadcast signals Resonant, detector, and AVC circuits Image rejection and noise analysis methods "This is the perfect guide for electronics hobbyists and students who want to delve deeper into the topic of radio. Overall, this extremely well written and comprehensively illustrated guide and reference deserves a place on the inquisitive radio amateur's bookshelf." - QST "I would definitely recommend this book to novices and all hobbyists and engineers who have not have much practical exposure to radio design and development." - EDN Make Great Stuff! TAB, an imprint of McGraw-Hill Professional, is a leading publisher of DIY technology books for makers, hackers, and electronics hobbyists.

This book explains how UHF tags and readers communicate wirelessly. It gives an understanding of what limits the read range of a tag, how to increase it (and why that might result in breaking the law), and the practical things that need to be addressed when designing and implementing RFID technology. Avoiding heavy math but giving breadth of coverage with the right amount of detail, it is an ideal introduction to radio communications for engineers who need insight into how tags and readers work.

New to this edition:

Examples of near-metal antenna techniques

Discussion of the wakeup challenge for battery-assisted tags, with a BAT architecture example

Latest development of protocols: EPC Gen 1.2.0

Update 18000-6 discussion with battery-assisted tags, sensor tags, Manchester tags and wakeup provisions
Named a 2012 Notable Computer Book for Computer Systems Organization by Computing ReviewsThe only book to give an understanding of radio communications, the underlying technology for radio frequency identification (RFID)Praised for its readability and clarity, it balances breadth and depth of coverage New edition includes latest developments in chip technology, antennas and protocols"

The importance of reducing energy costs, reducing CO2 emissions and protecting the environment are leading to an increased focus on green, energy-efficient approaches to the design of next-generation wireless networks. Presenting state-of-the-art research on green radio communications and networking technology by leaders in the field, this book is invaluable for researchers and professionals working in wireless communication. Summarizing existing and ongoing research, the book explores communication architectures and models, physical communications techniques, base station power-management techniques, wireless access techniques for green radio networks, and green radio test-bed, experimental results and standardization activities. Throughout, theoretical results are blended with practical insights and coverage of deployment issues. It serves as a one-stop reference for key concepts and design techniques for energy-efficient communications and networking and provides information essential for the design of future-generation cellular wireless systems.

Jahreswechsel 1991/1992: Zwei neue Rundfunkanstalten in Deutschland wurden geboren, der Ostdeutsche Rundfunk Brandenburg und der Mitteldeutsche Rundfunk - nachtr glich zur deutschen Einheit, kompatibel zum westdeutschen Rundfunksystem. Daf r mussten die berbleibsel der DDR verschwinden, Abwicklung der Einrichtung hie das Politikjargon. Die alten Fernseh- und H rfunksender wurden um 0 Uhr abgeschaltet oder neuen Rundfunkanstalten zugeordnet. War diese politische Entscheidung unausweichlich f r ein Gelingen der Deutschen Einheit? Oder sind dabei Chancen f r Demokratie, Kultur und Identit t vertan worden? Dieser Frage geht Reiner Stein in diesem Buch nach und reflektiert noch einmal die deutsch-deutsche Rundfunkgeschichte von 1989 bis 1992 mit all den Ideen, Konflikten und Kompromissen.