Mobile and Wireless Communications Network Layer and Circuit Level Design, Zheng Yun Man
Автор: Yarman Binboga Siddik Название: Design of Digital Phase Shifters for Multipurpose Communication Systems ISBN: 8770220948 ISBN-13(EAN): 9788770220941 Издательство: Taylor&Francis Рейтинг: Цена: 117390.00 T Наличие на складе: Нет в наличии. Описание: Design of Digital Phase Shifters for Multipurpose Communication Systems covers a new emerging need in designing digital phase shifters for modern communication systems. With the advancement of new generation mobile communication systems, directed beams save a substantial amount of RF-power, and improve the noise immunity. In this regard, beam-forming circuits, namely, digital phase shifters constitute essential parts of the antenna arrays. Therefore, this book is devoted to design of digital phase shifters for various communications systems. In the good old days, phase shifter design requirements used to demand narrow bandwidth with no physical size constraints. Nowadays, they must be compact and suitable for Very Large Scale Integrated Circuits (VLSI) or Microwave Monolithic Integrated Circuit (MMIC) implementation with Wide Phase Range (WPR) and Wide Frequency Band (WFB). Since the 1980s, the author has been designing digital phase shifters for various applications. He started to work with loaded lines phase shifters, and then employed branch line couplers to achieve wider frequency bands. In order to reduce the physical size, he used a 3 element Symmetric LC ladder based T or PI configurations. In order to achieve broad frequency band with large phase range, usage of LC lattice structures is inevitable. Lately, the author designed phase shifters using both lowpass and highpass LC ladder and lattice based switched-structures, which are suitable for monolithic implementation. In the course of design, MOS transistors were employed as switching elements. This book includes several novel digital phase shifter topologies, which provides wide phase range and wideband operation. Technical topics discussed in the book include:
Basic Concept of Antenna Arrays
Concept of Digital Phase Bit
Scattering Parameters to analyze the electric performance of phase shifters
Transmission Lines as circuit elements to construct practical phase shifters
Loaded Line Digital Phase Shifters (DPS)
Lowpass Based T/PI Section DPS
Highpass Based T/PI Section DPS
3-Element LC T/PI Section DPS
Wide Phase Range, Wide Frequency Band Symmetric Lattice Based DPS
For each topology presented, explicit design equations are provided and programs to assess the electric performance of each topology is developed in a MatLab environment. It is expected that the reader will be self-sufficient to design and implement the digital phase shifters topologies presented in this book.
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Автор: Petrovski Название: GPS, GLONASS, Galileo, and BeiDou for Mobile Devices ISBN: 1107035848 ISBN-13(EAN): 9781107035843 Издательство: Cambridge Academ Рейтинг: Цена: 103490.00 T Наличие на складе: Поставка под заказ. Описание: Get up to speed on all types of GNSS for mobile applications. With step-by-step algorithms and practical methods you will understand the capabilities of current systems and be able to apply your new knowledge to unlocking the potential of future mobile positioning.
Автор: Grebennikov Название: Broadband RF and Microwave Amplifiers ISBN: 1138800201 ISBN-13(EAN): 9781138800205 Издательство: Taylor&Francis Рейтинг: Цена: 83690.00 T Наличие на складе: Нет в наличии. Описание:
Broadband RF and Microwave Amplifiers provides extensive coverage of broadband radio frequency (RF) and microwave power amplifier design, including well-known historical and recent novel schematic configurations, theoretical approaches, circuit simulation results, and practical implementation strategies. The text begins by introducing two-port networks to illustrate the behavior of linear and nonlinear circuits, explaining the basic principles of power amplifier design, and discussing impedance matching and broadband power amplifier design using lumped and distributed parameters. The book then:
Shows how dissipative or lossy gain-compensation-matching circuits can offer an important trade-off between power gain, reflection coefficient, and operating frequency bandwidth
Describes the design of broadband RF and microwave amplifiers using real frequency techniques (RFTs), supplying numerous examples based on the MATLAB(R) programming process
Examines Class-E power amplifiers, Doherty amplifiers, low-noise amplifiers, microwave gallium arsenide field-effect transistor (GaAs FET)-distributed amplifiers, and complementary metal-oxide semiconductor (CMOS) amplifiers for ultra-wideband (UWB) applications
Broadband RF and Microwave Amplifiers combines theoretical analysis with practical design to create a solid foundation for innovative ideas and circuit design techniques.
Автор: Starosielski Nicole Название: The Undersea Network ISBN: 0822357402 ISBN-13(EAN): 9780822357407 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 90250.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание:
In our "wireless" world it is easy to take the importance of the undersea cable systems for granted, but the stakes of their successful operation are huge, as they are responsible for carrying almost all transoceanic Internet traffic. In The Undersea Network Nicole Starosielski follows these cables from the ocean depths to their landing zones on the sandy beaches of the South Pacific, bringing them to the surface of media scholarship and making visible the materiality of the wired network. In doing so, she charts the cable network's cultural, historical, geographic and environmental dimensions. Starosielski argues that the environments the cables occupy are historical and political realms, where the network and the connections it enables are made possible by the deliberate negotiation and manipulation of technology, culture, politics and geography. Accompanying the book is an interactive digital mapping project, where readers can trace cable routes, view photographs and archival materials, and read stories about the island cable hubs.
Автор: Bartolacci & Powell Название: Advancements And Innovations In Wireless Communications And Network Technologies ISBN: 1466621540 ISBN-13(EAN): 9781466621541 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 184800.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Advancement and Innovations in Wireless Communications and Network Technologies is a collection of research and case studies which tackle the issues, advancements, and techniques on wireless communications and network technologies. This book offers expansive knowledge and different perspectives useful for researchers and students alike.
This proceedings volume collects the most up-to-date, comprehensive and state-of-the-art knowledge on wireless communication, sensor network, network technologies, services and application.
Written by world renowned researchers, each chapter is original in content, featuring high-impact presentations and late-breaking contributions.
Researchers and practitioners will find this edition a useful resource material and an inspirational read.
Автор: Weldon Marcus K Название: Future X Network ISBN: 149877914X ISBN-13(EAN): 9781498779142 Издательство: Taylor&Francis Рейтинг: Цена: 56130.00 T Наличие на складе: Невозможна поставка. Описание: This book, written by Bell Labs researchers, CTO, and Bell Labs Consulting, guides users and members of the industry communications industry about how networks will evolve.
Автор: Kong-Pang Pun; Jos? Epifanio da Franca; Carlos Aze Название: Circuit Design for Wireless Communications ISBN: 1441953493 ISBN-13(EAN): 9781441953490 Издательство: Springer Рейтинг: Цена: 139310.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: This is the first book focusing on the subject of image rejection in wireless receiver design, which is crucial for the current and next generation mobile terminals. It serves as a very useful reference for wireless design engineers, researchers and students.
Автор: Kong-Pang Pun; Jos? Epifanio da Franca; Carlos Aze Название: Circuit Design for Wireless Communications ISBN: 1402074158 ISBN-13(EAN): 9781402074158 Издательство: Springer Рейтинг: Цена: 156720.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Focuses on the subject of image rejection in wireless receiver design. This book studies image rejection problems in various receiver architectures which are suitable for high level of integration, including image-reject, direct conversion and low IF architectures. It is intended for wireless design engineers, researchers, and students.
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