Feedback Linearization Of Rf Power Amplifiers
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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.
Feedback Linearization Of Rf Power Amplifiers
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Author : J.L. Dawson
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-05-08
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 2007-05-08 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.
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.
Rf Transceiver Design For Mimo Wireless Communications
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Author : Abbas Mohammadi
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-02-15
Rf Transceiver Design For Mimo Wireless Communications written by Abbas Mohammadi 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 2012-02-15 with Technology & Engineering categories.
This practical resource offers a thorough examination of RF transceiver design for MIMO communications. Offering a practical view on MIMO wireless systems, this book extends fundamental concepts on classic wireless transceiver design techniques to MIMO transceivers. This helps reader gain a very comprehensive understanding of the subject. This in-depth volume describes many theoretical and implementation challenges on MIMO transceivers and provides the practical solutions for these issues. This comprehensive book provides thorough descriptions of MIMO theoretical concepts, MIMO single carrier and OFDM modulation, RF transceiver design concepts, power amplifier, MIMO transmitter design techniques and their RF impairments, MIMO receiver design methods, RF impairments study including nonlinearity, DC-offset, I/Q imbalance and phase noise and their compensation in OFDM and MIMO techniques. In addition, it provides the most practical techniques to realize RF front-ends in MIMO systems. This book is supported with many design equations and illustrations. The first book dedicated to RF Transceiver design for MIMO systems, this volume serves as a current, one-stop guide offering you cost-effective solutions for your challenging projects in the field.
Rf Power Amplifiers
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Author : Marian K. Kazimierczuk
language : en
Publisher: John Wiley & Sons
Release Date : 2008-11-20
Rf Power Amplifiers written by Marian K. Kazimierczuk 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 2008-11-20 with Technology & Engineering categories.
An advanced textbook covering the fundamental theory of RF power amplifiers and their uses, this book provides essential guidance for design procedures. The introduction explains the basic theory of RF power amplifiers besides providing the basic classification of the different types of RF power amplifier. It then systematically dedicates a chapter to each different of RF power amplifier covering A, B and C, D (full-bridge and half-bridge types), E (zero-voltage-switching and zero-current-switching), F and DE amplifiers. Throughout this comprehensive guide, the optimal operating conditions are explored and the possible causes for suboptimum operation explained. The book then considers integrated inductors and linearization techniques and LC Oscillators in the concluding chapters. A comprehensive text covering the fundamentals of RF power amplifiers and their range of applications in radio and TV broadcasting, wireless communications and radars. Presents accessible coverage of the complex principles of operation of RF power amplifiers and radio power systems. Introduces the fundamental design techniques and procedures for practitioners for RF power amplifiers. All chapters contain examples and design procedures throughout, with review questions and problems at the end of each chapter. A solutions manual is available for instructors upon enquiry
Advanced Techniques In Rf Power Amplifier Design
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Author : Steve C. Cripps
language : en
Publisher: Artech House
Release Date : 2002
Advanced Techniques In Rf Power Amplifier Design written by Steve C. Cripps and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Technology & Engineering categories.
This much-anticipated volume builds on the author's best selling and classic work, RF Power Amplifiers for Wireless Communications (Artech House, 1999), offering experienced engineers a more in-depth understanding of the theory and design of RF power amplifiers. An invaluable reference tool for RF, digital and system level designers, the book includes discussions on the most critical topics for professionals in the field, including envelope power management schemes and linearization.
Distributed Cmos Bidirectional Amplifiers
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Author : Ziad El-Khatib
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-05-02
Distributed Cmos Bidirectional Amplifiers written by Ziad El-Khatib 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 2012-05-02 with Technology & Engineering categories.
This book describes methods to design distributed amplifiers useful for performing circuit functions such as duplexing, paraphrase amplification, phase shifting power splitting and power combiner applications. A CMOS bidirectional distributed amplifier is presented that combines for the first time device-level with circuit-level linearization, suppressing the third-order intermodulation distortion. It is implemented in 0.13um RF CMOS technology for use in highly-linear, low-cost UWB Radio-over-Fiber communication systems.
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).
Rf And Microwave Transmitter Design
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Author : Andrei Grebennikov
language : en
Publisher: John Wiley & Sons
Release Date : 2011-09-19
Rf And Microwave Transmitter Design written by Andrei Grebennikov 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 2011-09-19 with Technology & Engineering categories.
RF and Microwave Transmitter Design is unique in its coverage of both historical transmitter design and cutting edge technologies. This text explores the results of well-known and new theoretical analyses, while informing readers of modern radio transmitters' pracitcal designs and their components. Jam-packed with information, this book broadcasts and streamlines the author's considerable experience in RF and microwave design and development.
Linearization Of Rf Power Amplifiers Using Cartesian Feedback
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Author :
language : en
Publisher:
Release Date : 1991
Linearization Of Rf Power Amplifiers Using Cartesian Feedback written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.