Описание: The landmark text on frequency synthesizers - now in paperback. "Frequency Synthesizers: Theory and Design, Third Edition" is the newest edition of Vadim Manassewitsch's definitive treatment of the subject. Updated to include the latest achievements in the performance of crystal-controlled oscillators, the design theory of fast-switching-time synthesizers, and an example of their practical applications, the book continues to be a complete guide for everyone who works with synthesizers. Intended to formulate basic design principles and to demonstrate design procedures meeting several stringent requirements simultaneously, its emphasis is on high-speed synthesis and its new applications in radar, spread spectrum communications, automatic test equipment, and nuclear magnetic resources. Manassewitsch describes numerous approaches to ultra-stable signal sources generating spectrally pure signals of high accuracy, and shows how various building blocks such as mixers, oscillators, and frequency multipliers and dividers are used in frequency synthesis. To meet the needs of engineers in this rapidly growing field, Manassewitsch has added several novel frequency synthesis techniques, developed the principles of high-speed synthesis, and described new synthesizers using important design approaches. A summary of the most recent developments in frequency generation and control, the book is firmly based on the realities of current design practices in the United States as well as abroad. With an intermodulation products chart among its figures, a computer program that calculates the frequencies of mixer intermodulation products among its appendices, and a bibliography of more than 190 references, "Frequency Synthesizers: Theory and Design" continues to be an invaluable aid for engineers, managers, instructors, and students.
Описание: Recently, wireless LAN standards have emerged in the market. Those standards operate in various frequency ranges. To reduce component count, it is of importance to design a multi-mode frequency synthesizer that serves all wireless LAN standards including 802.11a, 802.11b and 802.11g standards. With different specifications for those standards, designing integer-based phase-locked loop frequency synthesizers can not be achieved. Fractional-N frequency synthesizers offer the solution required for a common multi-mode local oscillator. Those fractional-N synthesizers are based on delta-sigma modulators which in combination with a divider yield the fractional division required for the desired frequency of interest. In CMOS Single Chip Fast Frequency Hopping Synthesizers for Wireless Multi-Gigahertz Applications, the authors outline detailed design methodology for fast frequency hopping synthesizers for RF and wireless communications applications. Great emphasis on fractional-N delta-sigma based phase locked loops from specifications, system analysis and architecture planning to circuit design and silicon implementation. The book describes an efficient design and characterization methodology that has been developed to study loop trade-offs in both open and close loop modelling techniques. This is based on a simulation platform that incorporates both behavioral models and measured/simulated sub-blocks of the chosen frequency synthesizer. The platform predicts accurately the phase noise, spurious and switching performance of the final design. Therefore excellent phase noise and spurious performance can be achieved while meeting all the specified requirements. The design methodology reduces the need for silicon re-spin enabling circuit designers to directly meet cost, performance and schedule milestones.The developed knowledge and techniques have been used in the successful design and implementation of two high speed multi-mode fractional-N frequency synthesizers for the IEEE 801.11a/b/g standards. Both synthesizer designs are described in details.
Описание: This thesis investigates the dielectric properties of metal-oxide ceramics at microwave frequencies. It also demonstrates for the first time that a theory of harmonic phonon coupling can effectively predict the complex permittivity of metal oxides as a function of temperature and frequency. Dielectric ceramics are an important class of materials for radio-frequency, microwave and emergent terahertz technologies. Their key property is complex permittivity, the real part of which permits the miniaturisation of devices and the imaginary part of which is responsible for the absorption of electromagnetic energy. Absorption limits the practical performance of many microwave devices such as filters, oscillators, passive circuits and antennas. Complex permittivity as a function of temperature for low-loss dielectrics is determined by measuring the resonant frequency of dielectric resonators and using the radial mode matching technique to extract the dielectric properties.There have been only a handful of publications on the theory of dielectric loss, and their predictions have often been unfortunately unsatisfactory when compared to measurements of real crystals, sometimes differing by whole orders of magnitude. The main reason for this is the lack of accurate data for a harmonic coupling coefficient and phonon eigenfrequencies at arbitrary q vectors in the Brillouin zone. Here, a quantum field theory of losses in dielectrics is applied, using results from density functional perturbation theory, to predict from first principles the complex permittivity of metal oxides as functions of frequency and temperature.
Описание: Shows how to design and experiment with V/F converters, both voltage-to-frequency and frequency-to-voltage. This book describes converter-circuit designs, and also covers the most popular forms of VFC ICs available. It provides information on VFC ICs and related components, including how to test and troubleshoot completed circuits.
Описание: Presenting an expanded and thoroughly revised new edition of Tom Lee's acclaimed guide to the design of gigahertz RF integrated circuits. A new chapter on the principles of wireless systems provides a bridge between system and circuit issues. The chapters on low-noise amplifiers, oscillators and phase noise have been significantly expanded. The chapter on architectures now contains several examples of complete chip designs, including a GPS receiver and a wireless LAN transceiver, that bring together the theoretical and practical elements involved in producing a prototype chip. Every section has been revised and updated with the latest findings in the field and the book is packed with physical insights and design tips, and includes a historical overview that sets the whole field in context. With hundreds of circuit diagrams and homework problems this is an ideal textbook for students taking courses on RF design and a valuable reference for practising engineers.
Описание: Examines selective linear-phase switched-capacitor filters, and digital realizations of the same characteristics. In both cases, emphasis is placed on optimal low-sensitivity structures. It is designed for electronic circuit design engineers, researchers and graduate students.
Описание: "Do you want to design a wireless transmitter or receiver for hand--held telephones? Have you wondered why the printed circuit wires on high--frequency circuits don't always run in a straight line? This valuable text will answer all of your questions regarding component parasitics and circuit characterization for rf/microwave amplifier, oscillator, and filter circuit design and analysis. You will understand why capacitors act as inductors and vice versa and why amplifiers work like oscillators,ile oscillators for local area networks work more like local area heaters. Application of the information in Introduction to Microwave Circuits will reduce design--cycle time and costs, markedly increasing the probability of first--time success in printed circuit or monolithic microwave integrated circuit (MMIC) design. Several approaches are taken into consideration, such as the effects of currents on the ground plane, bypass and coupling capacitors, and nonlinear effects in linear circuits. Featured topics include: Incorporation of component parasitics in the design cycle Closed form solution to oscillator design Odd mode stability analysis PIN diode analysis for high--power switching applications An integrated design example of a 1.25 GHz amplifier, oscillator, and filter printed circuit is also included, which could be useful in printed circuit board designs from tens of megahertz to tens of gigahertz. Introduction to Microwave Circuits provides the tools necessary to analyze or synthesize microwave circuits. This text is an essential reference for undergraduate students, microwave engineers, and administrators. Also, it will assist experienced designers in other fields to meet the current rapid expansion of communication system applications and work effectively in microwave circuit design. About the Author Robert J. Weber began his prolific career in the Solid State Research Laboratory at the Collins Radio Company, later a part of Rockwell International. For 25 years, he worked on advanced development and applied research in the one-- to ten--gigahertz frequency range and received several distinguished awards for his valuable contributions to the field. Dr. Weber is involved in ongoing experimental research in integrating microwave circuits with other devices such as MEMS, chemical sensors, and electro--optics. Also, he teaches microwave circuit design and fiber--optics communications at the Department of Electrical and Computer Engineering, Iowa State University. Dr. Weber is an IEEE Fellow." Sponsored by: IEEE Microwave Theory and Techniques Society.
Автор: Davis Название: Radio Frequency Circuit Design ISBN: 0470575077 ISBN-13(EAN): 9780470575079 Издательство: Wiley Рейтинг: Цена: 12128 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This new edition of Radio Frequency Circuit Design features novel applications of RF technology, an area that continues to grow and evolve. It provides a thorough basis for design of RF circuits, including phase locked loops, filters, transformers, amplifiers, mixers, and oscillators.
Автор: Myoung An; Andrzej K. Brodzik; Richard Tolimieri Название: Ideal Sequence Design in Time-Frequency Space ISBN: 0817647376 ISBN-13(EAN): 9780817647377 Издательство: Springer Рейтинг: Цена: 14649 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Develops theory and algorithms leading to systematic sequence design in time-frequency space. This book features standard communication theory and Zak space methods that are numerically compared. It covers application areas that include pulse radar and sonar, multi-beam radar and sonar imaging systems, and remote identification of dielectrics.
Описание: There has been an increasing demand for Wireless Local Area Network (WLAN) systems in the past few years. New frequency bands are allocated and new standards are being developed to accommodate higher data rates. The fast trend of CMOS scaling has provided an opportunity for the development of low cost integrated WLAN systems. Frequency synthesizers are one of the main building blocks of wireless transceivers. The high frequency digital frequency dividers in a phase-locked loop (PLL) based frequency synthesizer are among the most challenging blocks to design and usually account for a large percentage of the synthesizer total power dissipation. The successful design and integration of a high frequency PLL demands a comprehensive understanding of wireless systems, RF circuits, and loop stability issues. Multi-GHz Frequency Synthesis & Division starts with an overview of WLAN systems and reviews the WLAN market and standards. It then studies PLLs as an essential building block of WLAN receivers, and provides guidelines and engineering recipes for the design of loop filters in high frequency PLLs. Additionally, the book investigates different analog and digital frequency division techniques and introduces injection-locked frequency dividers (ILFDs) as an alternative for conventional frequency dividers. Finally, the book demonstrates a successful design of a fully integrated CMOS frequency synthesizer for a 5 GHz WLAN receiver. Multi-GHz Frequency Synthesis & Division will be of interest to RF and high-speed analog circuit designers and students as well as wireless engineers.
Описание: Explores the developments in communication engineering. This book covers topics such as the modulation and demodulation of circuits, CAD of microwave integrated circuits, frequency synthesis, switching converters, and digital synthesizers. It offers an introduction to scattering coefficients.
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