Efficiency Enhancement Of Pico Cell Base Station Power Amplifier Mmic In Gan Hfet Technology Using The Doherty Technique

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Efficiency Enhancement of Pico-cell Base Station Power Amplifier MMIC in GaN HFET Technology Using the Doherty Technique

Author : Sashieka Seneviratne
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (871 download)

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Book Synopsis Efficiency Enhancement of Pico-cell Base Station Power Amplifier MMIC in GaN HFET Technology Using the Doherty Technique by : Sashieka Seneviratne

Download or read book Efficiency Enhancement of Pico-cell Base Station Power Amplifier MMIC in GaN HFET Technology Using the Doherty Technique written by Sashieka Seneviratne and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With the growth of smart phones, the demand for more broadband, data centric technologies are being driven higher. As mobile operators worldwide plan and deploy 4th generation (4G) networks such as LTE to support the relentless growth in mobile data demand, the need for strategically positioned pico-sized cellular base stations known as 'pico-cells' are gaining traction. In addition to having to design a transceiver in a much compact footprint, pico-cells must still face the technical challenges presented by the new 4G systems, such as reduced power consumptions and linear amplification of the signals. The RF power amplifier (PA) that amplifies the output signals of 4G pico-cell systems face challenges to minimize size, achieve high average efficiencies and broader bandwidths while maintaining linearity and operating at higher frequencies. 4G standards as LTE use non-constant envelope modulation techniques with high peak to average ratios. Power amplifiers implemented in such applications are forced to operate at a backed off region from saturation. Therefore, in order to reduce power consumption, a design of a high efficiency PA that can maintain the efficiency for a wider range of radio frequency signals is required. The primary focus of this thesis is to enhance the efficiency of a compact RF amplifier suitable for a 4G pico-cell base station. For this aim, an integrated two way Doherty amplifier design in a compact 10mm x 11.5mm monolithic microwave integrated circuit using GaN device technology is presented. Using non-linear GaN HFETs models, the design achieves high effi-ciencies of over 50% at both back-off and peak power regions without compromising on the stringent linearity requirements of 4G LTE standards. This demonstrates a 17% increase in power added efficiency at 6 dB back off from peak power compared to conventional Class AB amplifier performance. Performance optimization techniques to select between high efficiency and high linearity operation are also presented. Overall, this thesis demonstrates the feasibility of an integrated HFET Doherty amplifier for LTE band 7 which entails the frequencies from 2.62-2.69GHz. The realization of the layout and various issues related to the PA design is discussed and attempted to be solved.

Design Approach for Thermal Performance Enhancements of a Pico-Cell Base-station Power Amplifier in Gallium Nitride HFET Technology

Download Design Approach for Thermal Performance Enhancements of a Pico-Cell Base-station Power Amplifier in Gallium Nitride HFET Technology PDF Online Free

Author : Mihir Sharma
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (129 download)

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Book Synopsis Design Approach for Thermal Performance Enhancements of a Pico-Cell Base-station Power Amplifier in Gallium Nitride HFET Technology by : Mihir Sharma

Download or read book Design Approach for Thermal Performance Enhancements of a Pico-Cell Base-station Power Amplifier in Gallium Nitride HFET Technology written by Mihir Sharma and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As newer and more powerful technologies emerge in the market, the desire for compactness and aesthetics drive designers to aggressive new heights. The trend of technology is quite simply to deliver high-speed designs that pack more power while seeing reduction in form factor for ease of use at the consumer level. This presents new challenges with reliability, cost, and ultimately what the consumer strives for: performance. It is inevitable for a small compact size device, such as a smartphone or wireless repeater, to face heating issues when packing large amounts of power. The goal of this thesis is to characterize an in-market device's thermal behavior and RF performance, and present an alternative design approach that helps improve thermal performance. This solution must not increase the design space or form factor excessively. The proposal utilizes an off-the-shelf solution and predicts performance improvements and degradation as a function of thermal performance. Electro-thermal simulators are used extensively to gauge the behavior and flow of heat within a gallium nitride device, and used as a baseline for comparison. Two modified approaches are presented and declared to be more efficient and reliable than the baseline. The design approaches comply with the industry standards of minimizing size and show a clear improvement in thermal behavior that can be utilized for any single device approach. The research is focused under similar power and biasing conditions so that designers can effectively implement a simple plug and play approach whenever the device under test is at risk of violating temperature limits and/or if performance degradation is observed under a variety of operating conditions.

Efficiency Enhancement of Linear GaN RF Power Amplifiers Using the Doherty Technique

Author : Asdesach Zena Markos
Publisher : kassel university press GmbH
ISBN 13 : 9783899586220
Total Pages : 172 pages
Book Rating : 4.5/5 (862 download)

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Book Synopsis Efficiency Enhancement of Linear GaN RF Power Amplifiers Using the Doherty Technique by : Asdesach Zena Markos

Download or read book Efficiency Enhancement of Linear GaN RF Power Amplifiers Using the Doherty Technique written by Asdesach Zena Markos and published by kassel university press GmbH. This book was released on 2008 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Non-linear MMIC Design Using AlGaN/GaN HEMT Technology

Author : Valiallah Zomorrodian
Publisher :
ISBN 13 : 9781267020956
Total Pages : 234 pages
Book Rating : 4.0/5 (29 download)

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Book Synopsis Non-linear MMIC Design Using AlGaN/GaN HEMT Technology by : Valiallah Zomorrodian

Download or read book Non-linear MMIC Design Using AlGaN/GaN HEMT Technology written by Valiallah Zomorrodian and published by . This book was released on 2011 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: High output power and high efficiency are two desirable factors for RF/microwave power amplifiers. Higher power added efficiency (PAE) leads to less DC power consumption by the circuit, increasing the battery life and relaxing the heat dissipation requirements, while high power density results in smaller, simpler circuitry. Monolithic Microwave Integrated Circuits (MMICs) are of great interest for microwave applications due to their much smaller size compared to the hybrid implementations. Among the existing microwave device technologies, AlGaN/GaN high electron mobility transistor (HEMT) technology is rapidly emerging as the high-power, high-frequency device of choice for future wireless applications. AlGaN/GaN HEMTs have superior power-density and much higher breakdown voltage compared with other technologies, and excellent power performance has been reported for devices as well as for MMIC power amplifiers.

Design of GaN MMIC Generalized Back-off Doherty Power Amplifier Using Uneven Drain Bias Technique

Author : Min-Hsin Liu
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)

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Book Synopsis Design of GaN MMIC Generalized Back-off Doherty Power Amplifier Using Uneven Drain Bias Technique by : Min-Hsin Liu

Download or read book Design of GaN MMIC Generalized Back-off Doherty Power Amplifier Using Uneven Drain Bias Technique written by Min-Hsin Liu and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analysis and Design of Efficiency Enhancement Microwave Power Amplifiers Using the Doherty Technique

Author :
Publisher :
ISBN 13 :
Total Pages : 217 pages
Book Rating : 4.:/5 (915 download)

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Book Synopsis Analysis and Design of Efficiency Enhancement Microwave Power Amplifiers Using the Doherty Technique by :

Download or read book Analysis and Design of Efficiency Enhancement Microwave Power Amplifiers Using the Doherty Technique written by and published by . This book was released on 2013 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Systematic Design of a Microwave GaN Doherty Power Amplifier

Author : Kenneth Previn Samuel
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis Systematic Design of a Microwave GaN Doherty Power Amplifier by : Kenneth Previn Samuel

Download or read book Systematic Design of a Microwave GaN Doherty Power Amplifier written by Kenneth Previn Samuel and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doherty PAs are the standard for efficient transmission of amplitude modulated signals. However, its design process varies tremendously across use case, frequency range, power range, and device technology. Due to this, the design procedure of a Doherty PA is often subjected to tuning and optimization. A step-by-step systematic approach in designing a Doherty PA is introduced in this thesis as a consequence of a novel method to match devices to their optimum terminations. The design methodology introduced in this thesis can be applied to any use case irrespective of the operating conditions. To display the functionality of this procedure, a microwave GaN Doherty PA is designed from simulations using Agilent's Advanced Design System (ADS). It is then fabricated and measured for performance. Good agreement between measured and simulated data is demonstrated.

MMIC Power Amplifiers in GaN HEMT and InP HBT Technologies

Author : Vamsi K. Paidi
Publisher :
ISBN 13 : 9780496017072
Total Pages : 394 pages
Book Rating : 4.0/5 (17 download)

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Book Synopsis MMIC Power Amplifiers in GaN HEMT and InP HBT Technologies by : Vamsi K. Paidi

Download or read book MMIC Power Amplifiers in GaN HEMT and InP HBT Technologies written by Vamsi K. Paidi and published by . This book was released on 2004 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second phase of research involved developing 75--220-GHz power amplifiers which have applications in wide-band communication systems, atmospheric sensing and automotive radar. Modern InP double heterojunction bipolar transistors (DHBTs) simultaneously exhibit 6 V Vbr, 400 GHz fmax, 3.5 mA/mum2 collector current density and high thermal conductivity, resulting in high power density in the 75--220-GHz frequency band. The common-base topology exhibits higher maximum stable gain in this band when compared to common-emitter and common-collector topologies. Layout parasitics including base inductance, Lb and collector to emitter overlap capacitance, Cce can cause instability. A single-sided collector contact has been employed to reduce Cce. A single-stage common-base tuned amplifier exhibited 7-dB small-signal gain at 176 GHz. This amplifier demonstrated 8.77 dBm output power with 5-dB associated power gain at 172 GHz. A two-stage common-base amplifier exhibited 8.1 dBm output power with 6.35-dB associated power gain at 176 GHz and demonstrated 9.13 dBm of saturated output power. This two-stage common-base amplifier exhibited 10.3 dBm output power at 150.2 GHz.

Behavioral Modeling and Predistortion of Wideband Wireless Transmitters

Author : Fadhel M. Ghannouchi
Publisher : John Wiley & Sons
ISBN 13 : 1118406273
Total Pages : 271 pages
Book Rating : 4.1/5 (184 download)

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Book Synopsis Behavioral Modeling and Predistortion of Wideband Wireless Transmitters by : Fadhel M. Ghannouchi

Download or read book Behavioral Modeling and Predistortion of Wideband Wireless Transmitters written by Fadhel M. Ghannouchi and published by John Wiley & Sons. This book was released on 2015-07-20 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers theoretical and practical aspects related to the behavioral modelling and predistortion of wireless transmitters and power amplifiers. It includes simulation software that enables the users to apply the theory presented in the book. In the first section, the reader is given the general background of nonlinear dynamic systems along with their behavioral modelling from all its aspects. In the second part, a comprehensive compilation of behavioral models formulations and structures is provided including memory polynomial based models, box oriented models such as Hammerstein-based and Wiener-based models, and neural networks-based models. The book will be a valuable resource for design engineers, industrial engineers, applications engineers, postgraduate students, and researchers working on power amplifiers modelling, linearization, and design.

Millimeter-Wave Antennas: Configurations and Applications

Author : Jaco du Preez
Publisher : Springer
ISBN 13 : 3319350684
Total Pages : 165 pages
Book Rating : 4.3/5 (193 download)

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Book Synopsis Millimeter-Wave Antennas: Configurations and Applications by : Jaco du Preez

Download or read book Millimeter-Wave Antennas: Configurations and Applications written by Jaco du Preez and published by Springer. This book was released on 2016-06-20 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively reviews the state of the art in millimeter-wave antennas, traces important recent developments and provides information on a wide range of antenna configurations and applications. While fundamental theoretical aspects are discussed whenever necessary, the book primarily focuses on design principles and concepts, manufacture, measurement techniques, and practical results. Each of the various antenna types scalable to millimeter-wave dimensions is considered individually, with coverage of leaky-wave and surface-wave antennas, printed antennas, integrated antennas, and reflector and lens systems. The final two chapters address the subject from a systems perspective, providing an overview of supporting circuitry and examining in detail diverse millimeter-wave applications, including high-speed wireless communications, radio astronomy, and radar. The vast amount of information now available on millimeter-wave systems can be daunting for researchers and designers entering the field. This book offers readers essential guidance, helping them to gain a thorough understanding based on the most recent research findings and serving as a sound basis for informed decision-making.

Soft Computing: Theories and Applications

Author : Millie Pant
Publisher : Springer
ISBN 13 : 9789811540318
Total Pages : 1126 pages
Book Rating : 4.5/5 (43 download)

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Book Synopsis Soft Computing: Theories and Applications by : Millie Pant

Download or read book Soft Computing: Theories and Applications written by Millie Pant and published by Springer. This book was released on 2020-08-14 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on soft computing and how it can be applied to solve real-world problems arising in various domains, ranging from medicine and healthcare, to supply chain management, image processing and cryptanalysis. It gathers high-quality papers presented at the International Conference on Soft Computing: Theories and Applications (SoCTA 2019), organized by the National Institute of Technology Patna, India. Offering valuable insights into soft computing for teachers and researchers alike, the book will inspire further research in this dynamic field.

Terahertz Antenna Technology for Imaging and Sensing Applications

Author : Isha Malhotra
Publisher : Springer Nature
ISBN 13 : 3030689603
Total Pages : 321 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Terahertz Antenna Technology for Imaging and Sensing Applications by : Isha Malhotra

Download or read book Terahertz Antenna Technology for Imaging and Sensing Applications written by Isha Malhotra and published by Springer Nature. This book was released on 2021-05-11 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers terahertz antenna technology for imaging and sensing, along with its various applications. The authors discuss the use of terahertz frequency and photoconductive antenna technology for imaging applications, such as biological and bio-medical applications, non-destructive inspection of fabrics and plastics, analysis of hydration levels or detecting the presence of metallic components in samples, and detecting a variety of materials with unique spectral fingerprints in the terahertz frequency range, such as different types of explosives or several compounds used in the fabrication of medicines. Provides a comprehensive review of terahertz source and detector for imaging and sensing; Discusses photoconductive antenna technology for imaging and sensing; Presents modalities for improving the photoconductive dipole antenna performance for imaging and sensing; Explores applications in tomographic imaging, art conservation and the pharmaceutical and aerospace industries.

Modern Cable Television Technology

Author : David Large
Publisher : Elsevier
ISBN 13 : 0080511937
Total Pages : 1093 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Modern Cable Television Technology by : David Large

Download or read book Modern Cable Television Technology written by David Large and published by Elsevier. This book was released on 2004-01-13 with total page 1093 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully updated, revised, and expanded, this second edition of Modern Cable Television Technology addresses the significant changes undergone by cable since 1999--including, most notably, its continued transformation from a system for delivery of television to a scalable-bandwidth platform for a broad range of communication services. It provides in-depth coverage of high speed data transmission, home networking, IP-based voice, optical dense wavelength division multiplexing, new video compression techniques, integrated voice/video/data transport, and much more. Intended as a day-to-day reference for cable engineers, this book illuminates all the technologies involved in building and maintaining a cable system. But it's also a great study guide for candidates for SCTE certification, and its careful explanations will benefit any technician whose work involves connecting to a cable system or building products that consume cable services. Written by four of the most highly-esteemed cable engineers in the industry with a wealth of experience in cable, consumer electronics, and telecommunications All new material on digital technologies, new practices for delivering high speed data, home networking, IP-based voice technology, optical dense wavelength division multiplexing (DWDM), new video compression techniques, and integrated voice/video/data transport Covers the latest on emerging digital standards for voice, data, video, and multimedia Presents distribution systems, from drops through fiber optics, an covers everything from basic principles to network architectures

High Efficiency RF and Microwave Solid State Power Amplifiers

Author : Paolo Colantonio
Publisher : John Wiley & Sons
ISBN 13 : 9780470746554
Total Pages : 514 pages
Book Rating : 4.7/5 (465 download)

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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.

Modeling and Design Techniques for RF Power Amplifiers

Author : Arvind Raghavan
Publisher : John Wiley & Sons
ISBN 13 : 9780470228302
Total Pages : 224 pages
Book Rating : 4.2/5 (283 download)

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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 2008-02-04 with total page 224 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.

Advanced Techniques in RF Power Amplifier Design

Author : Steve C. Cripps
Publisher : Artech House
ISBN 13 : 9781580535649
Total Pages : 342 pages
Book Rating : 4.5/5 (356 download)

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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.

Nonlinear Microwave Circuits

Author : Stephen A. Maas
Publisher : Wiley-IEEE Press
ISBN 13 :
Total Pages : 508 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Nonlinear Microwave Circuits by : Stephen A. Maas

Download or read book Nonlinear Microwave Circuits written by Stephen A. Maas and published by Wiley-IEEE Press. This book was released on 1997 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic text is an excellent resource and time-saver for engineers who need to tackle troublesome nonlinear components that remain in use despite recent advances in microwave technology. NONLINEAR MICROWAVE CIRCUITS offers detailed, technically substantial coverage of key methods for the analysis, design, and optimization of nonlinear microwave circuits. Using minimal mathematics, it integrates in-depth, "readable" coverage of the underlying theories that guide these methods. This book is replete with valuable "how to" information on a wide range of topics.