Large Signal Modeling Of Gan Hemts For Linear Power Amplifier Design
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Large Signal Modeling Of Gan Hemts For Linear Power Amplifier Design
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Author : Endalkachew Shewarega Mengistu
language : en
Publisher: kassel university press GmbH
Release Date : 2008
Large Signal Modeling Of Gan Hemts For Linear Power Amplifier Design written by Endalkachew Shewarega Mengistu and has been published by kassel university press GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Large Signal Modeling Of Gan Device For High Power Amplifier Design
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Author : Anwar Hasan Jarndal
language : en
Publisher: kassel university press GmbH
Release Date : 2006
Large Signal Modeling Of Gan Device For High Power Amplifier Design written by Anwar Hasan Jarndal and has been published by kassel university press GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
Efficiency Enhancement Of Linear Gan Rf Power Amplifiers Using The Doherty Technique
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Author :
language : en
Publisher: kassel university press GmbH
Release Date :
Efficiency Enhancement Of Linear Gan Rf Power Amplifiers Using The Doherty Technique written by and has been published by kassel university press GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Device Characterization And Modeling Of Large Size Gan Hemts
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Author : Jaime Alberto Zamudio Flores
language : en
Publisher: kassel university press GmbH
Release Date : 2012-08-21
Device Characterization And Modeling Of Large Size Gan Hemts written by Jaime Alberto Zamudio Flores and has been published by kassel university press GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08-21 with Gallium nitride categories.
This work presents a comprehensive modeling strategy for advanced large-size AlGaN/GaN HEMTs. A 22-element equivalent circuit with 12 extrinsic elements, including 6 capacitances, serves as small-signal model and as basis for a large-signal model. ANalysis of such capacitances leads to original equations, employed to form capacitance ratios. BAsic assumptions of existing parameter extractions for 22-element equivalent circuits are perfected: A) Required capacitance ratios are evaluated with device's top-view images. B) Influences of field plates and source air-bridges on these ratios are considered. The large-signal model contains a gate charge's non-quasi-static model and a dispersive-IDS model. THe extrinsic-to-intrinsic voltage transformation needed to calculate non-quasi-static parameters from small-signal parameters is improved with a new description for the measurement's boundary bias points. ALl IDS-model parameters, including time constants of charge-trapping and self-heating, are extracted using pulsed-DC IV and IDS-transient measurements, highlighting the modeling strategy's empirical character.
Parameter Extraction And Complex Nonlinear Transistor Models
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Author : Gunter Kompa
language : en
Publisher: Artech House
Release Date : 2019-12-31
Parameter Extraction And Complex Nonlinear Transistor Models written by Gunter Kompa and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-31 with Technology & Engineering categories.
All model parameters are fundamentally coupled together, so that directly measured individual parameters, although widely used and accepted, may initially only serve as good estimates. This comprehensive resource presents all aspects concerning the modeling of semiconductor field-effect device parameters based on gallium-arsenide (GaAs) and gallium nitride (GaN) technology. Metal-semiconductor field-effect transistors (MESFETs), high electron mobility transistors (HEMTs) and heterojunction bipolar transistors (HBTs), their structures and functions, and existing transistor models are also classified. The Shockley model is presented in order to give insight into semiconductor field-effect transistor (FET) device physics and explain the relationship between geometric and material parameters and device performance. Extraction of trapping and thermal time constants is discussed. A special section is devoted to standard nonlinear FET models applied to large-signal measurements, including static-/pulsed-DC and single-/two-tone stimulation. High power measurement setups for signal waveform measurement, wideband source-/load-pull measurement (including envelope source-/load pull) are also included, along with high-power intermodulation distortion (IMD) measurement setup (including envelope load-pull). Written by a world-renowned expert in the field, this book is the first to cover of all aspects of semiconductor FET device modeling in a single volume.
Reliable Rf Power Amplifier Design Based On A Partitioning Design Approach
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Author : Rui Ma
language : en
Publisher: kassel university press GmbH
Release Date : 2010
Reliable Rf Power Amplifier Design Based On A Partitioning Design Approach written by Rui Ma and has been published by kassel university press GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Amplifiers, Radio frequency categories.
Front cover -- Titelseite -- Impressum -- Acknowledgments -- Contents -- List of Abbreviations and Acronyms -- Abstract -- Zusammenfassung -- Chapter 1 Introduction -- 1.1 Principle of the Partitioning Design Approach -- 1.2 Dissertation Organization -- Chapter 2 Investigation of Planar-Interconnection -- 2.1 Active Chip Device Interconnection -- 2.1.1 Die Attach -- 2.1.2 Wire Bonding Pad-To-Microstrip -- 2.2 Microstrip-to-Microstrip Interconnection -- 2.2.1 Soldering -- 2.2.2 Multi-Wire Bonding -- 2.2.3 Copper Ribbon -- 2.2.4 Silver- Painting -- Chapter 3 Analysis and Modeling of Passive SMD Components -- 3.1 SMD Resistor -- 3.2 SMD Capacitor -- 3.3 SMD Inductor -- Chapter 4 Modeling of AlGaAs/GaAs HEMT Chip Device -- 4.1 AIGaAs/GaGa HEMT Chip -- 4.2 Modeling Approach Overview -- 4.3 Small-Signal Modeling -- 4.3.1 Extrinsic Parameter Extraction -- 4.3.2 Intrinsic Parameter Extraction -- 4.4 Large-Signal Modeling -- 4.4.1 Gate Current and Charge Models -- 4.4.2 Drain Current Model -- 4.4.3 Model Verification -- Chapter 5 Demonstrator Design of a Class-AB Power Amplifier Following -- 5.1 Micro-Packaged Device Characterization -- 5.1.1 Small-Signal Performance -- 5.1.2 Large-Signal Performance -- 5.2 Bias Network Design -- 5.2.1 Drain Bias Network -- 5.2.2 Gate Bias Network -- 5.3 Matching Network Design -- 5.3.1 Matching Impedance Determination -- 5.4 Power Amplifier Performance Evaluation -- 5.4.1 Small-Signal Performance -- 5.4.2 Large-Signal Performance -- Chapter 6 Conclusions and Outlook -- Appendix -- Appendix A THLR In-Fixture Calibration -- Appendix B Precise Determination of Substrate Permittivity -- Appendix C Schematic Circuit of the Designed Power Amplifier Demonstrator -- Appendix D Power Amplifier Design Following the Conventional Design Approach -- References -- Back cover
Partitioning Design Approach For The Reliable Design Of Highly Efficient Rf Power Amplifiers
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Author : Roshanak Lehna
language : en
Publisher: kassel university press GmbH
Release Date : 2017-11-13
Partitioning Design Approach For The Reliable Design Of Highly Efficient Rf Power Amplifiers written by Roshanak Lehna and has been published by kassel university press GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-13 with categories.
The modern wireless communication systems require modulated signals with wide modulation bandwidth. This, in turns, requires signals with very high dynamic range and peak-to-average power ratio (PAPR). This means that the amplifier in the base-station has to work at a power back-off as large as the dynamic range of the signal, so that the amplifier has a high linearity in this region. For the standard single-stage amplifiers, this large power back-off reduces the efficiency dramatically. In this work, a three-way Doherty power amplifier (DPA) aiming at high power efficiency within a dynamic range of 9.5 dB, is designed and fabricated using partitioning design approach. The partitioning design approach decomposes a complex design task into small-sized, well-controllable, and verifiable subcircuits. This advanced straight forward method has shown very promising results. Using this design approach, a three-way DPA has been designed to demonstrate the advantages of this reliable design technique as well. Based on the design of a single-stage power amplifier and proposing a novel output power combiner, a 6 W three-way DPA has been designed which allows the mandatory load modulation principle in three-way DPA structures to be realized with simpler elements, whereas the design of a standard Doherty combiner would have been very challenging and not practical due to the extremely small value of its characteristic line impedance. The proposed combiner is calculated for a three-way DPA with 2-mm AlGaN/GaN-HEMTs. The simulation result shows a very good load modulation for the amplifier, which confirms the theoretical expectation for a three-way DPA. The efficiency of the designed 6 W three-way DPA at large back-off shows very promising values compared to recently reported amplifiers. The measured IMD3 products confirm the good linearity of the amplifier as well. Accordingly, the proposed power combiner and the design strategy are recommended to be used as the preferred option for designing three-way DPA structures with very high output power.
Algan Gan Hemt Power Amplifiers With Optimized Power Added Efficiency For X Band Applications
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Author : Jutta Kühn
language : en
Publisher: KIT Scientific Publishing
Release Date : 2011
Algan Gan Hemt Power Amplifiers With Optimized Power Added Efficiency For X Band Applications written by Jutta Kühn and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Power amplifiers categories.
This work has arisen out of the strong demand for a superior power-added efficiency (PAE) of AlGaN/GaN high electron mobility transistor (HEMT) high-power amplifiers (HPAs) that are part of any advanced wireless multifunctional RF-system with limited prime energy. Different concepts and approaches on device and design level for PAE improvements are analyzed, e.g. structural and layout changes of the GaN transistor and advanced circuit design techniques for PAE improvements of GaN HEMT HPAs.
Gan Based Tri Gate High Electron Mobility Transistors
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Author : Erdin Ture
language : en
Publisher: BoD – Books on Demand
Release Date : 2022-09-07
Gan Based Tri Gate High Electron Mobility Transistors written by Erdin Ture and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-07 with Technology & Engineering categories.
The rapidly-growing data throughput rates in a wide range of wireless communication applications are pushing the established semiconductor device technologies to their limits. Considerably higher levels of solid-state output power will therefore be needed to meet the demand in the next generation satellite communications as well as the RADAR systems. Owing to their superior material properties such as high breakdown fields and peak electron velocities, GaN-based high electron mobility transistors (HEMTs) have recently prevailed in high-power systems operating in the microwave frequency bands. On the other hand at the millimetre-wave (MMW) and sub-MMW frequencies, highly-scaled GaN HEMTs are prone to experiencing deteriorated high frequency characteristics which severely limit the high-power performance. In an attempt to overcome this, 3-dimensional GaN HEMT devices featuring the Tri-gate topology are developed in this work, exhibiting enhanced performance in terms of both off- and on-state figures of merit. The demonstrated results promote the great potential of Tri-gate GaN HEMTs for both MMW power amplifier and high-speed logic applications.
Modeling And Design Techniques For Rf Power Amplifiers
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Author : Arvind Raghavan
language : en
Publisher: John Wiley & Sons
Release Date : 2008-02-04
Modeling And Design Techniques For Rf Power Amplifiers written by Arvind Raghavan 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 2008-02-04 with Technology & Engineering categories.
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.