Bandwidth and Efficiency Enhancement in Radio Frequency Power Amplifiers for Wireless Transmitters, Karun Rawat; Patrick Roblin; Shiban K Koul
Автор: Walker Название: Handbook of RF and Microwave Power Amplifiers ISBN: 0521760100 ISBN-13(EAN): 9780521760102 Издательство: Cambridge Academ Рейтинг: Цена: 27839 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This is a one-stop guide for circuit designers and system/device engineers, covering everything from CAD to reliability.
Описание: Offers practitioners a comprehensive, practical understanding of how to tackle a PA (power amplifier) design with confidence and quickly determine the cause of malfunctioning hardware. Supported with nearly 200 illustrations, this book contains the survey of RF PA efficiency enhancement and linearization techniques.
Автор: Grebennikov Название: Broadband RF and Microwave Amplifiers ISBN: 1138800201 ISBN-13(EAN): 9781138800205 Издательство: Taylor&Francis Рейтинг: Цена: 12522 р. Наличие на складе: Поставка под заказ.
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.
Описание: Microstrip patch antenna is one of the most important types of antenna, which is widely used for spacecraft, satellite, missile applications etc., where size, cost and ease of operation are the major factors. But here one thing is very pertinent to mention that microstrip antennas possess low efficiency and narrow percentage bandwidth, which is a major drawback of it and it is my major concern to improve these constraints. To overcome the problem of narrow bandwidth, I am using a superstrate of some height of substrate above the patch and capacitive coupling between patch and feed line in my work in order to enhance the bandwidth and efficiency of antenna using HFSS software. HFSS is an acronym for High Frequency Structure Simulator, which is an interactive simulation system software whose basic mesh element is a tetrahedron. This allows us to solve any arbitrary 3D geometry, especially those with complex curves and shapes in a fraction of the time it would take using other techniques.
Описание: In this work, different approaches for improving the bandwidth efficiency of Multiple Access Channels have been proposed. Such improvements can be achieved with methods that use network coding or with methods that implement successive decoding. Both of these two methods have been discussed here. Under the first method, two novel schemes for using network coding in cooperative networks have been proposed. In the first scheme, network coding generates some redundancy in addition to the redundancy that is generated by the channel code. In the second scheme, the relay by use of the network code, sends a compressed version of the parts missing from the original transmission. The second method, involves a scheme to increase the channel capacity of an existing channel. This increase is made possible by the introduction of a new Raptor coded interfering channel to an existing channel. Through successive decoding at the destination, the data of both main and interfering sources is decoded. Finally, we generalize our work to allow the possibility of decoding either the secondary source data or the main source data first. We will investigate the performance and delay for each decoding scheme.
Описание: It covers the complete design flow, from link budget assessment to the transistor-level design of different RF front-end blocks, such as mixers and power amplifiers, presenting different alternatives and discussing the existing trade-offs.
This book introduces systematic design methods for passive and active RF circuits and techniques, including state-of-the-art digital enhancement techniques. As the very first book dedicated to multiband RF circuits and techniques, this work provides an overview of the evolution of transmitter architecture and discusses current digital predistortion techniques. Readers will find a collection of novel research ideas and new architectures in concurrent multiband power dividers, power amplifiers and related digital enhancement techniques. This book will be of great interest to academic researchers, R&D engineers, wireless transmitter and protocol designers, as well as graduate students who wish to learn the core architectures, principles and methods of multiband RF circuits and techniques.
Автор: Foad Arfaei Malekzadeh; Reza Mahmoudi; Arthur H.M. Название: Analog Dithering Techniques for Wireless Transmitters ISBN: 1493900145 ISBN-13(EAN): 9781493900145 Издательство: Springer Рейтинг: Цена: 16653 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book details innovative techniques and the theoretical background for design and analysis of high performance RF/Microwave transmitters. It introduces robust linearization/efficiency enhancement techniques, applicable to switched mode power amplifiers.
Описание: Adopts an approach that provides an understanding of key areas in the field of digital synthesizers and transmitters. This book presents the techniques such as digital predistortion for power amplifier linearization, digital compensation methods for analog I/Q modulator nonlinearities and digital power control and ramping.
Автор: Rudolf F. Graf Название: Build Your Own Low-Power Transmitters, ISBN: 0750672447 ISBN-13(EAN): 9780750672443 Издательство: Elsevier Science Рейтинг: Цена: 8309 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Addresses applications for hobbyist broadcasting of AM, SSB, TV, FM Stereo and NBFM VHF-UHF signals with equipment that the reader can build himself for thousands of dollars less than similar equipment sold on the retail market. This book contains twenty low-power (LP) transmitter projects.
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