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High Efficiency Linear Rf Power Amplifiers Development
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Book Synopsis High Efficiency RF and Microwave Solid State Power Amplifiers by : Paolo Colantonio
Download or read book High Efficiency RF and Microwave Solid State Power Amplifiers written by Paolo Colantonio and published by John Wiley & Sons. This book was released on 2009-07-08 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Do you want to know how to design high efficiency RF and microwave solid state power amplifiers? Read this book to learn the main concepts that are fundamental for optimum amplifier design. Practical design techniques are set out, stating the pros and cons for each method presented in this text. In addition to novel theoretical discussion and workable guidelines, you will find helpful running examples and case studies that demonstrate the key issues involved in power amplifier (PA) design flow. Highlights include: Clarification of topics which are often misunderstood and misused, such as bias classes and PA nomenclatures. The consideration of both hybrid and monolithic microwave integrated circuits (MMICs). Discussions of switch-mode and current-mode PA design approaches and an explanation of the differences. Coverage of the linearity issue in PA design at circuit level, with advice on low distortion power stages. Analysis of the hot topic of Doherty amplifier design, plus a description of advanced techniques based on multi-way and multi-stage architecture solutions. High Efficiency RF and Microwave Solid State Power Amplifiers is: an ideal tutorial for MSc and postgraduate students taking courses in microwave electronics and solid state circuit/device design; a useful reference text for practising electronic engineers and researchers in the field of PA design and microwave and RF engineering. With its unique unified vision of solid state amplifiers, you won’t find a more comprehensive publication on the topic.
Book Synopsis High-efficiency Linear RF Power Amplifiers Development by : Nuttapong Srirattana
Download or read book High-efficiency Linear RF Power Amplifiers Development written by Nuttapong Srirattana and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Next generation mobile communication systems require the use of linear RF power amplifier for higher data transmission rates. However, linear RF power amplifiers are inherently inefficient and usually require additional circuits or further system adjustments for better efficiency. This dissertation focuses on the development of new efficiency enhancement schemes for linear RF power amplifiers. The multistage Doherty amplifier technique is proposed to improve the performance of linear RF power amplifiers operated in a low power level. This technique advances the original Doherty amplifier scheme by improving the efficiency at much lower power level. The proposed technique is supported by a new approach in device periphery calculation to reduce AM/AM distortion and a further improvement of linearity by the bias adaptation concept. The device periphery adjustment technique for efficiency enhancement of power amplifier integrated circuits is also proposed in this work. The concept is clearly explained together with its implementation on CMOS and SiGe RF power amplifier designs. Furthermore, linearity improvement technique using the cancellation of nonlinear terms is proposed for the CMOS power amplifier in combination with the efficiency enhancement technique. In addition to the efficiency enhancement of power amplifiers, a scalable large-signal MOSFET model using the modified BSIM3v3 approach is proposed. A new scalable substrate network model is developed to enhance the accuracy of the BSIM3v3 model in RF and microwave applications. The proposed model simplifies the modeling of substrate coupling effects in MOS transistor and provides great accuracy in both small-signal and large-signal performances.
Book Synopsis Switchmode RF and Microwave Power Amplifiers by : Andrei Grebennikov
Download or read book Switchmode RF and Microwave Power Amplifiers written by Andrei Grebennikov and published by Academic Press. This book was released on 2021-03-19 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: Switchmode RF and Microwave Power Amplifiers, Third Edition is an essential reference book on developing RF and microwave switchmode power amplifiers. The book combines theoretical discussions with practical examples, allowing readers to design high-efficiency RF and microwave power amplifiers on different types of bipolar and field-effect transistors, design any type of high-efficiency switchmode power amplifiers operating in Class D or E at lower frequencies and in Class E or F and their subclasses at microwave frequencies with specified output power, also providing techniques on how to design multiband and broadband Doherty amplifiers using different bandwidth extension techniques and implementation technologies. This book provides the necessary information to understand the theory and practical implementation of load-network design techniques based on lumped and transmission-line elements. It brings a unique focus on switchmode RF and microwave power amplifiers that are widely used in cellular/wireless, satellite and radar communication systems which offer major power consumption savings. Provides a complete history of high-efficiency Class E and Class F techniques Presents a new chapter on Class E with shunt capacitance and shunt filter to simplify the design of high-efficiency power amplifier with broader frequency bandwidths Covers different Doherty architectures, including integrated and monolithic implementations, which are and will be, used in modern communication systems to save power consumption and to reduce size and costs Includes extended coverage of multiband and broadband Doherty amplifiers with different frequency ranges and output powers using different bandwidth extension techniques Balances theory with practical implementation, avoiding a cookbook approach and enabling engineers to develop better designs, including hybrid, integrated and monolithic implementations
Book Synopsis Switchmode RF Power Amplifiers by : Andrei Grebennikov
Download or read book Switchmode RF Power Amplifiers written by Andrei Grebennikov and published by Newnes. This book was released on 2011-04-01 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: A majority of people now have a digital mobile device whether it be a cell phone, laptop, or blackberry. Now that we have the mobility we want it to be more versatile and dependable; RF power amplifiers accomplish just that. These amplifiers take a small input and make it stronger and larger creating a wider area of use with a more robust signal. Switching mode RF amplifiers have been theoretically possible for decades, but were largely impractical because they distort analog signals until they are unrecognizable. However, distortion is not an issue with digital signals—like those used by WLANs and digital cell phones—and switching mode RF amplifiers have become a hot area of RF/wireless design. This book explores both the theory behind switching mode RF amplifiers and design techniques for them. *Provides essential design and implementation techniques for use in cma2000, WiMAX, and other digital mobile standards *Both authors have written several articles on the topic and are well known in the industry *Includes specific design equations to greatly simplify the design of switchmode amplifiers
Book Synopsis Mewhinney mss., Dunedin Public Libraries, Dunedin, New Zealand by :
Download or read book Mewhinney mss., Dunedin Public Libraries, Dunedin, New Zealand written by and published by . This book was released on 1602 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Design Techniques for RF Power Amplifiers by : Anna N. Rudiakova
Download or read book Advanced Design Techniques for RF Power Amplifiers written by Anna N. Rudiakova and published by Springer Science & Business Media. This book was released on 2006-09-09 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Design Techniques for RF Power Amplifiers provides a deep analysis of theoretical aspects, modelling, and design strategies of RF high-efficiency power amplifiers. The book can be used as a guide by scientists and engineers dealing with the subject and as a text book for graduate and postgraduate students. Although primarily intended for skilled readers, it provides an excellent quick start for beginners.
Book Synopsis RF and Microwave Power Amplifier Design by : Andrei Grebennikov
Download or read book RF and Microwave Power Amplifier Design written by Andrei Grebennikov and published by McGraw Hill Professional. This book was released on 2004-09-15 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a rigorous tutorial on radio frequency and microwave power amplifier design, teaching the circuit design techniques that form the microelectronic backbones of modern wireless communications systems. Suitable for self-study, corporate training, or Senior/Graduate classroom use, the book combines analytical calculations and computer-aided design techniques to arm electronic engineers with every possible method to improve their designs and shorten their design time cycles.
Author :Paulo Augusto Dal Fabbro Publisher :Springer Science & Business Media ISBN 13 :9048193613 Total Pages :171 pages Book Rating :4.0/5 (481 download)
Book Synopsis Linear CMOS RF Power Amplifiers for Wireless Applications by : Paulo Augusto Dal Fabbro
Download or read book Linear CMOS RF Power Amplifiers for Wireless Applications written by Paulo Augusto Dal Fabbro and published by Springer Science & Business Media. This book was released on 2010-06-22 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in electronics have pushed mankind to create devices, ranging from - credible gadgets to medical equipment to spacecraft instruments. More than that, modern society is getting used to—if not dependent on—the comfort, solutions, and astonishing amount of information brought by these devices. One ?eld that has continuously bene?tted from those advances is the radio frequency integrated c- cuit (RFIC) design, which in its turn has promoted countless bene?ts to the mankind as a payback. Wireless communications is one prominent example of what the - vances in electronics have enabled and their consequences to our daily life. How could anyone back in the eighties think of the possibilities opened by the wireless local area networks (WLANs) that can be found today in a host of places, such as public libraries, coffee shops, trains, to name just a few? How can a youngster, who lives this true WLAN experience nowadays, imagine a world without it? This book dealswith the design oflinearCMOS RF PowerAmpli?ers(PAs). The RF PA is a very important part of the RF transceiver, the device that enables wireless communications. Two important aspects that are key to keep the advances in RF PA design at an accelerate pace are treated: ef?ciency enhancement and frequen- tunable capability. For this purpose, the design of two different integrated circuits realizedina0. 11μmtechnologyispresented,eachoneaddressingadifferentaspect. With respect to ef?ciency enhancement, the design of a dynamic supply RF power ampli?er is treated, making up the material of Chaps. 2 to 4.
Book Synopsis Efficiency Enhancement of Linear GaN RF power Amplifiers Using the Doherty Technique by :
Download or read book Efficiency Enhancement of Linear GaN RF power Amplifiers Using the Doherty Technique written by and published by kassel university press GmbH. This book was released on with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Power Amplifier Design by : Noble Publishing Corporation
Download or read book Power Amplifier Design written by Noble Publishing Corporation and published by Noble Publishing. This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation This design guide collects 21 articles published in between 1989 and 2001, enabling readers to review classic theory as well as stay abreast of new technology. Coverage includes the specification, analysis, and measurement of distortion from various perspectives; predistortion techniques; and practical designs, including the magnetron, biasing LDMOS FETs for linear operation, the RF power transistor, and a push-pull 300-watt amplifier for 81.36 MHZ. Each article includes references. There is no index. Annotation c. Book News, Inc., Portland, OR (booknews.com).
Book Synopsis Modeling and Design Techniques for RF Power Amplifiers by : Arvind Raghavan
Download or read book Modeling and Design Techniques for RF Power Amplifiers written by Arvind Raghavan and published by John Wiley & Sons. This book was released on 2008-01-09 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Achieve higher levels of performance, integration, compactness, and cost-effectiveness in the design and modeling of radio-frequency (RF) power amplifiers RF power amplifiers are important components of any wireless transmitter, but are often the limiting factors in achieving better performance and lower cost in a wireless communication system—presenting the RF IC design community with many challenges. The next-generation technological advances presented in this book are the result of cutting-edge research in the area of large-signal device modeling and RF power amplifier design at the Georgia Institute of Technology, and have the potential to significantly address issues of performance and cost-effectiveness in this area. Richly complemented with hundreds of figures and equations, Modeling and Design Techniques for RF Power Amplifiers introduces and explores the most important topics related to RF power amplifier design under one concise cover. With a focus on efficiency enhancement techniques and the latest advances in the field, coverage includes: Device modeling for CAD Empirical modeling of bipolar devices Scalable modeling of RF MOSFETs Power amplifier IC design Power amplifier design in silicon Efficiency enhancement of RF power amplifiers The description of state-of-the-art techniques makes this book a valuable and handy reference for practicing engineers and researchers, while the breadth of coverage makes it an ideal text for graduate- and advanced undergraduate-level courses in the area of RF power amplifier design and modeling.
Book Synopsis Design Techniques for High Efficiency Highly Linear RF Power Amplifer by :
Download or read book Design Techniques for High Efficiency Highly Linear RF Power Amplifer written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Power consumption is a key parameter to be considered in designing wireless systems, especially for cellular applications. Lower power consumption by designing highly power efficient transceiver circuits is extremely desirable as it results in lower battery size, higher talk time, lower heat generation and lower cost. Very high spectral efficiency is sought after in present day communication systems. In order to achieve very high data rates, sophisticated non-constant envelope modulation schemes are used. This places very stringent requirements on the transceiver design. One of the key requirements is spectral linearity or purity, wherein the transmitter signal spectrum has to be clean within the signal bandwidth and outside the signal bandwidth as specified by FCC regulations for the wireless standard. Output RF power amplifier (PA) consumes most of the power in a transmitter and is the key to high efficiency transmitter design. This research focuses on novel techniques to maximize power efficiency of the RF power amplifier and at the same time having high spectral linearity to meet FCC specifications. This research attempts to achieve the goal of high efficiency and high linearity by two different methods - signal conditioning and smart circuit design. A new crest factor reduction (CFR) technique to developed to reduce peak to average ratio (PAR) of high PAR signals. Trade-offs between the in-band and out-of-band distortion is analyzed for maximum reduction in PAR of the signal. A novel high efficiency linear transmitter architecture based on power quadrature modulation is proposed. High efficiency differential class D power supply modulator is designed in Jazz 0.18 um process. A lookup table based digital predistortion (DPD) engine is developed in MATLAB to improve linearity performance in RF power amplifier. A DPD algorithm is demonstrated to improve the distortion performance of a Gallium Nitride RF PA at a particular output power level.
Book Synopsis Bandwidth and Efficiency Enhancement in Radio Frequency Power Amplifiers for Wireless Transmitters by : Karun Rawat
Download or read book Bandwidth and Efficiency Enhancement in Radio Frequency Power Amplifiers for Wireless Transmitters written by Karun Rawat and published by Springer Nature. This book was released on 2020-03-05 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on broadband power amplifier design for wireless communication. Nonlinear model embedding is described as a powerful tool for designing broadband continuous Class-J and continuous class F power amplifiers. The authors also discuss various techniques for extending bandwidth of load modulation based power amplifiers, such as Doherty power amplifier and Chireix outphasing amplifiers. The book also covers recent trends on digital as well as analog techniques to enhance bandwidth and linearity in wireless transmitters. Presents latest trends in designing broadband power amplifiers; Covers latest techniques for using nonlinear model embedding in designing power amplifiers based on waveform engineering; Describes the latest techniques for extending bandwidth of load modulation based power amplifiers such as Doherty power amplifier and Chireix outphasing amplifiers; Includes coverage of hybrid analog/digital predistortion as wideband solution for wireless transmitters; Discusses recent trends on on-chip power amplifier design with GaN /GaAs MMICs for high frequency applications.
Book Synopsis RF CMOS Power Amplifiers: Theory, Design and Implementation by : Mona M. Hella
Download or read book RF CMOS Power Amplifiers: Theory, Design and Implementation written by Mona M. Hella and published by Springer Science & Business Media. This book was released on 2005-12-27 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: RF CMOS Power Amplifiers: Theory Design and Implementation focuses on the design procedure and the testing issues of CMOS RF power amplifiers. This is the first monograph addressing RF CMOS power amplifier design for emerging wireless standards. The focus on power amplifiers for short is distance wireless personal and local area networks (PAN and LAN), however the design techniques are also applicable to emerging wide area networks (WAN) infrastructure using micro or pico cell networks. The book discusses CMOS power amplifier design principles and theory and describes the architectures and tardeoffs in designing linear and nonlinear power amplifiers. It then details design examples of RF CMOS power amplifiers for short distance wireless applications (e, g., Bluetooth, WLAN) including designs for multi-standard platforms. Design aspects of RF circuits in deep submicron CMOS are also discussed. RF CMOS Power Amplifiers: Theory Design and Implementation serves as a reference for RF IC design engineers and RD and R&D managers in industry, and for graduate students conducting research in wireless semiconductor IC design in general and with CMOS technology in particular.
Book Synopsis Doherty Power Amplifiers by : Bumman Kim
Download or read book Doherty Power Amplifiers written by Bumman Kim and published by Academic Press. This book was released on 2018-03-28 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doherty Power Amplifiers: From Fundamentals to Advanced Design Methods is a great resource for both RF and microwave engineers and graduate students who want to understand and implement the technology into future base station and mobile handset systems. The book introduces the very basic operational principles of the Doherty Amplifier and its non-ideal behaviors. The different transconductance requirements for carrier and peaking amplifiers, reactive element effect, and knee voltage effect are described. In addition, several methods to correct imperfections are introduced, such as uneven input drive, gate bias adaptation, dual input drive and the offset line technique. Advanced design methods of Doherty Amplifiers are also explained, including multistage/multiway Doherty power amplifiers which can enhance the efficiency of the amplification of a highly-modulated signal. Other covered topics include signal tracking operation which increases the dynamic range, highly efficient saturated amplifiers, and broadband amplifiers, amongst other comprehensive, related topics. Specifically written on the Doherty Power Amplifier by the world’s leading expert, providing an in-depth presentation of principles and design techniques Includes detailed analysis on correcting non-ideal behaviors of Doherty Power Amplifiers Presents advanced Doherty Power Amplifier architectures
Book Synopsis Development of High Efficiency and High Linearity Power Amplifiers by : Mohamed Magdi Ahmed Darwish
Download or read book Development of High Efficiency and High Linearity Power Amplifiers written by Mohamed Magdi Ahmed Darwish and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Power amplifiers typically dominate transmitter and system characteristics. They have the highest DC power consumption, power dissipation, and heat dissipation. Power MMICs have the largest chip area which means higher cost. Modern communication digital modulation techniques require that PAs should have high linear characteristics. On the other hand, PAs are required to be efficient to decrease power consumption and to extend the operation life of battery operated devices. Gallium Nitride PAs became the focus of industry in the last decade. They provide the highest power density among other technologies, as well as providing high efficiency and are suitable for wide bandwidth applications. On the other hand, they suffer from soft compression, AM/AM and AM/PM distortions at higher levels compared to GaAs and Si based devices. Also, since GaN is considered a new technology power gain decreases for mm-wave frequencies. In this Ph.D. research, we address 3 problems: linearity, efficiency and gain of mm-wave power amplifiers. We present 4 contributions; First, we demonstrate the design of a linear and high efficient power amplifier (PA) by using different gate bias voltages for parallelly combined Gallium Nitride (GaN) high electron mobility transistors (HEMTs). The experimental results show that the linearized PA achieves the gain flatness of 0.3 dB over a 35 dB power range and has a measured sharp output power at 1 dB compression point (P1dB) of 38.5 dBm, less than 2 dB below the saturated power (P[subscript SAT]). The measured adjacent channel power ratio (ACPR) of the proposed linearized PA shows up to 8 dB improvements over the PA biased ~ class A (47% Idss) Second, we propose a new modulating load range for a Doherty power amplifier (DPA) that will maintain maximum drain voltage swing and consequently peak efficiency in over 6-dB power back-off (PBO). At 6-dB PBO, the real part of the new modulating load seen by the main amplifier is less than 2*R[subscript opt]. The new load range allows for the design of a compact, low loss output matching and combiner circuit and a simple single drain bias line for the main and auxiliary amplifiers. The proposed 2-stage DPA using the new modulating loads is designed at 15 GHZ in a 0.15 [mu]m enhancement mode (E-mode) Gallium Arsenide (GaAs) pseudomorphic high electron mobility transistor (pHEMT) process. The proposed DPA achieves a measured P[subscript sat] of 27 dBm, a peak power added efficiency (PAE) of 41% and a PAE of 34% at 6 dB PBO with a gain of 17 dB. Third, we propose an extended range Doherty power amplifier (DPA) to achieve high efficiency at 9-dB power back-off (PBO) using a novel loading impedance range. The proposed loading impedance range enables the auxiliary transistor to deliver more current so that symmetric devices can be used in the DPA and results in a compact and low loss output combining circuit. A 20-Watt DPA using Gallium nitride high electron mobility transistors (GaN HEMTs) at 3.5 GHz has been developed to demonstrate the concept. Measurements show power added efficiency (PAE) of 69% at 42.9 dBm saturation output power, PAE of 55% at 9-dB PBO, and gain of 12 dB. We believe our proposed DPA has the highest 9-dB PBO PAE of 55% among reported GaN DPA’s. Finally, we introduce an inductive feedback technique to enhance the gain of mm-wave power amplifiers. A 3-stage 60 GHz PA was designed with 22 dB gain and output power of almost 1-watt.
Book Synopsis Advanced Techniques in RF Power Amplifier Design by : Steve C. Cripps
Download or read book Advanced Techniques in RF Power Amplifier Design written by Steve C. Cripps and published by Artech House. This book was released on 2002 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
