Linear And Nonlinear Feedback Linearization Of Radio Frequency Power Amplifiers
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Linear And Nonlinear Feedback Linearization Of Radio Frequency Power Amplifiers
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Author : Robert I. Bogya
language : en
Publisher:
Release Date : 2005
Linear And Nonlinear Feedback Linearization Of Radio Frequency Power Amplifiers written by Robert I. Bogya and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Amplifiers, Radio frequency categories.
Radio frequency (RF) power amplifiers (PA) are the most power consuming components of a mobile communications unit. They are used to convert the DC power from the battery into RF power delivered to the antenna. In a cell phone it becomes very important to use highly efficient power amplifiers, such as Class C and Class E PAs, to increase the talk time which is directly proportional to the battery life. On the other hand these RF PAs are inherently nonlinear and will produce spectral regrowth and other undesirable effects. Therefore, to exploit their high efficiency, it is desirable to employ linearization techniques to linearize the overall response of these nonlinear amplifiers. Linear model matching and nonlinear multiplicative feedback linearization techniques are investigated in this work to compensate for PA onlinearities. The application of these techniques resulted in controller architectures that deliver excellent linearity performance of the compensated Class E and Class C PA models, making them very suitable in Wideband Code-Division Multiple-Access (W-CDMA) and Code-Division Multiple Access 2000 (CDMA2000) systems for transmission of multiple signals at high data rates, assuring that intermodulation distortion and spectral regrowth are minimized at the output of the power amplifier. Moreover, their high efficiency provides a significant extension of the battery lifetime.
Nonlinear Modeling Analysis And Predistortion Algorithm Research Of Radio Frequency Power Amplifiers
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Author : Jingchang Nan
language : en
Publisher: CRC Press
Release Date : 2021-07-30
Nonlinear Modeling Analysis And Predistortion Algorithm Research Of Radio Frequency Power Amplifiers written by Jingchang Nan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-30 with Technology & Engineering categories.
This book is a summary of a series of achievements made by the authors and colleagues in the areas of radio frequency power amplifier modeling (including neural Volterra series modeling, neural network modeling, X-parameter modeling), nonlinear analysis methods, and power amplifier predistortion technology over the past 10 years. The book is organized into ten chapters, which respectively describe an overview of research of power amplifier behavioral models and predistortion technology, nonlinear characteristics of power amplifiers, power amplifier behavioral models and the basis of nonlinear analysis, an overview of power amplifier predistortion, Volterra series modeling of power amplifiers, power amplifier modeling based on neural networks, power amplifier modeling with X-parameters, the modeling of other power amplifiers, nonlinear circuit analysis methods, and predistortion algorithms and applications. Blending theory with analysis, this book will provide researchers and RF/microwave engineering students with a valuable resource.
Feedback Linearization Of Rf Power Amplifiers
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Author : J.L. Dawson
language : en
Publisher: Springer Science & Business Media
Release Date : 2004-06-08
Feedback Linearization Of Rf Power Amplifiers written by J.L. Dawson and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-06-08 with Technology & Engineering categories.
Improving the performance of the power amplifier is the most pressing problem facing designers of modern radio-frequency (RF) transceivers. Linearity and power efficiency of the transmit path are of utmost importance, and the power amplifier has proven to be the bottleneck for both. High linearity enables transmission at the highest data rates for a given channel bandwidth, and power efficiency prolongs battery lifetime in portable units and reduces heat dissipation in high-power transmitters. Cartesian feedback is a power amplifier linearization technique that acts to soften the tradeoff between power efficiency and linearity in power amplifiers. Despite its compelling, fundamental advantages, the technique has not enjoyed widespread acceptance because of certain implementation difficulties. Feedback Linearization of RF Power Amplifiers introduces new techniques for overcoming the challenges faced by the designer of a Cartesian feedback system. The theory of the new techniques are described and analyzed in detail. The book culminates with the results of the first known fully integrated Cartesian feedback power amplifier system, whose design was enabled by the techniques described. Feedback Linearization of RF Power Amplifiers is a valuable reference work for engineers in the telecommunications industry, industry researchers, academic researchers.
The Design Of Cmos Radio Frequency Integrated Circuits
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Author : Thomas H. Lee
language : en
Publisher: Cambridge University Press
Release Date : 2003-12-22
The Design Of Cmos Radio Frequency Integrated Circuits written by Thomas H. Lee and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-12-22 with Technology & Engineering categories.
This book, first published in 2004, is an expanded and thoroughly revised 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 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.
Advances In Mechanical And Electronic Engineering
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Author : David Jin
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-07-25
Advances In Mechanical And Electronic Engineering written by David Jin and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-07-25 with Technology & Engineering categories.
This book includes the volume 3 of the proceedings of the 2012 International Conference on Mechanical and Electronic Engineering(ICMEE2012), held at June 23-24,2012 in Hefei, China. The conference provided a rare opportunity to bring together worldwide researchers who are working in the fields. This volume 3 is focusing on Electronic Engineering and Electronic Communication; Electronic Engineering and Electronic Image Processing.
Rf Circuit Design
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Author : Richard C. Li
language : en
Publisher: John Wiley & Sons
Release Date : 2008-10-22
Rf Circuit Design written by Richard C. Li and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-10-22 with Technology & Engineering categories.
A Must-Read for all RF/RFIC Circuit Designers This book targets the four most difficult skills facing RF/RFIC designers today: impedance matching, RF/AC grounding, Six Sigma design, and RFIC technology. Unlike most books on the market, it presents readers with practical engineering design examples to explore how they're used to solve ever more complex problems. The content is divided into three key parts: Individual RF block circuit design Basic RF circuit design skills RF system engineering The author assumes a fundamental background in RF circuit design theory, and the goal of the book is to enable readers to master the correct methodology. The book includes treatment of special circuit topologies and introduces some useful schemes for simulation and layout. This is a must-read for RF/RFIC circuit design engineers, system designers working with communication systems, and graduates and researchers in related fields.
Digital Front End In Wireless Communications And Broadcasting
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Author : Fa-Long Luo
language : en
Publisher: Cambridge University Press
Release Date : 2011-09-29
Digital Front End In Wireless Communications And Broadcasting written by Fa-Long Luo and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-29 with Technology & Engineering categories.
Covering everything from signal processing algorithms to integrated circuit design, this complete guide to digital front-end is invaluable for professional engineers and researchers in the fields of signal processing, wireless communication and circuit design. Showing how theory is translated into practical technology, it covers all the relevant standards and gives readers the ideal design methodology to manage a rapidly increasing range of applications. Step-by-step information for designing practical systems is provided, with a systematic presentation of theory, principles, algorithms, standards and implementation. Design trade-offs are also included, as are practical implementation examples from real-world systems. A broad range of topics is covered, including digital pre-distortion (DPD), digital up-conversion (DUC), digital down-conversion (DDC) and DC-offset calibration. Other important areas discussed are peak-to-average power ratio (PAPR) reduction, crest factor reduction (CFR), pulse-shaping, image rejection, digital mixing, delay/gain/imbalance compensation, error correction, noise-shaping, numerical controlled oscillator (NCO) and various diversity methods.
Linear Cmos Rf Power Amplifiers
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Author : Hector Solar Ruiz
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-09-14
Linear Cmos Rf Power Amplifiers written by Hector Solar Ruiz and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-14 with Technology & Engineering categories.
The work establishes the design flow for the optimization of linear CMOS power amplifiers from the first steps of the design to the final IC implementation and tests. The authors also focuses on design guidelines of the inductor’s geometrical characteristics for power applications and covers their measurement and characterization. Additionally, a model is proposed which would facilitate designs in terms of transistor sizing, required inductor quality factors or minimum supply voltage. The model considers limitations that CMOS processes can impose on implementation. The book also provides different techniques and architectures that allow for optimization.
Bulletin Of Electrical Engineering And Informatics
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Author : Tole Sutikno
language : en
Publisher: Universitas Ahmad Dahlan
Release Date :
Bulletin Of Electrical Engineering And Informatics written by Tole Sutikno and has been published by Universitas Ahmad Dahlan this book supported file pdf, txt, epub, kindle and other format this book has been release on with Technology & Engineering categories.
Bulletin of Electrical Engineering and Informatics is a peer-reviewed journal that publishes material on all aspects of electrical, electronics, instrumentation, control, telecommunication, computer engineering, information technology and informatics from the global world.
Design Of Linear Rf Outphasing Power Amplifiers
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Author : Xuejun Zhang
language : en
Publisher: Artech House
Release Date : 2003
Design Of Linear Rf Outphasing Power Amplifiers written by Xuejun Zhang and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Technology & Engineering categories.
Describes the outphasing approach to amplifier linearization that uses power-combining techniques to create a linear output waveform from two nonlinear input sources, and presents recent advances in resolving the limitations caused by the strict matching requirements between the two amplifiers and the microwave power wasted in the power-combing network. The authors discuss the linearity performance of outphasing amplifier systems, correction schemes based on training vectors, and power recycling in outphasing amplifiers. Zhang is an engineer with Qualcomm, while Larson and Asbeck are affiliated with the University of California, San Diego. Annotation (c)2003 Book News, Inc., Portland, OR (booknews.com).