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Large Signal Modeling Of Gan Hemts For Linear Power Amplifier Design
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Book Synopsis Large-signal Modeling of GaN HEMTs for Linear Power Amplifier Design by : Endalkachew Shewarega Mengistu
Download or read book Large-signal Modeling of GaN HEMTs for Linear Power Amplifier Design written by Endalkachew Shewarega Mengistu and published by kassel university press GmbH. This book was released on 2008 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large Signal Modeling of GaN Device for High Power Amplifier Design by : Anwar Hasan Jarndal
Download or read book Large Signal Modeling of GaN Device for High Power Amplifier Design written by Anwar Hasan Jarndal and published by kassel university press GmbH. This book was released on 2006 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large Signal Modeling of GaN HEMTs for UMTS Base Station Power Amplifier Design Taking Into Account Memory Effects by : Suramate Chalermwisutkul
Download or read book Large Signal Modeling of GaN HEMTs for UMTS Base Station Power Amplifier Design Taking Into Account Memory Effects written by Suramate Chalermwisutkul and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large Signal Modeling of AlGaN/GaN HEMTs and Design of 50W Power Amplifier at 3.5Ghz by :
Download or read book Large Signal Modeling of AlGaN/GaN HEMTs and Design of 50W Power Amplifier at 3.5Ghz written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Parameter Extraction and Complex Nonlinear Transistor Models by : Gunter Kompa
Download or read book Parameter Extraction and Complex Nonlinear Transistor Models written by Gunter Kompa and published by Artech House. This book was released on 2019-12-31 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author :Jaime Alberto Zamudio Flores Publisher :kassel university press GmbH ISBN 13 :3862193640 Total Pages :257 pages Book Rating :4.8/5 (621 download)
Book Synopsis Device Characterization and Modeling of Large-Size GaN HEMTs by : Jaime Alberto Zamudio Flores
Download or read book Device Characterization and Modeling of Large-Size GaN HEMTs written by Jaime Alberto Zamudio Flores and published by kassel university press GmbH. This book was released on 2012-08-21 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Advanced Large-Signal Modeling of GaN-HEMTs by : M. Berroth
Download or read book Advanced Large-Signal Modeling of GaN-HEMTs written by M. Berroth and published by . This book was released on 2002 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: For improved non-linear modeling of AlGaN/GaN high electron mobility transistors, a large- signal model originally developed for GaAs-based devices has been extended by introduction of a thermal sub-circuit to account for self-heating. Thereby, DC output characteristics which typically show negative output conductance at a high dissipating power level are well reproduced. Since self-heating also effects the transconductance, which is related to S(sub 21 at RF conditions, the comparison of broadband S-parameter simulations and measurements revealed significant improvement when using the extended model. First experimental and theoretical investigations on the transient behavior at pulsed conditions are finally presented.
Book Synopsis Gan Hemt Modeling and Design for Mm and Sub-Mm Wave Power Amplifiers by : Diego Guerra
Download or read book Gan Hemt Modeling and Design for Mm and Sub-Mm Wave Power Amplifiers written by Diego Guerra and published by LAP Lambert Academic Publishing. This book was released on 2012-02 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work initially compares GaN high electron mobility transistors (HEMTs) based on the established Ga-face technology and the emerging N-face technology. An investigation is then carried out on the short channel effects in ultra-scaled GaN and InP HEMTs. The dielectric effects of the passivation layer in millimeter-wave, high-power GaN HEMTs are also investigated by focusing on the effective gate length, the gate fringing capacitance, and the drain-to-gate feedback capacitance. Lastly, efficient Full Band Monte Carlo particle-based device simulations of the large-signal performance of millimeter-wave transistor power amplifiers with high-Q matching networks are reported for the first time. In particular, a Cellular Monte Carlo code is self-consistently coupled with a Harmonic Balance frequency domain circuit solver. This book provides device engineers with an insight about the link between the nano-scale carrier dynamics and the device performance. It also introduces an efficient tool for the device early-stage design for RF power amplifiers.
Book Synopsis Partitioning Design Approach for the Reliable Design of Highly Efficient RF Power Amplifiers by : Roshanak Lehna
Download or read book Partitioning Design Approach for the Reliable Design of Highly Efficient RF Power Amplifiers written by Roshanak Lehna and published by kassel university press GmbH. This book was released on 2017-11-13 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Nonlinear Transistor Model Parameter Extraction Techniques by : Matthias Rudolph
Download or read book Nonlinear Transistor Model Parameter Extraction Techniques written by Matthias Rudolph and published by Cambridge University Press. This book was released on 2011-10-13 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Achieve accurate and reliable parameter extraction using this complete survey of state-of-the-art techniques and methods. A team of experts from industry and academia provides you with insights into a range of key topics, including parasitics, intrinsic extraction, statistics, extraction uncertainty, nonlinear and DC parameters, self-heating and traps, noise, and package effects. Learn how similar approaches to parameter extraction can be applied to different technologies. A variety of real-world industrial examples and measurement results show you how the theories and methods presented can be used in practice. Whether you use transistor models for evaluation of device processing and you need to understand the methods behind the models you use, or you want to develop models for existing and new device types, this is your complete guide to parameter extraction.
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 AlGaN/GaN-HEMT power amplifiers with optimized power-added efficiency for X-band applications by : Jutta Kühn
Download or read book AlGaN/GaN-HEMT power amplifiers with optimized power-added efficiency for X-band applications written by Jutta Kühn and published by KIT Scientific Publishing. This book was released on 2011 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Millimeter-Wave GaN Power Amplifier Design by : Edmar Camargo
Download or read book Millimeter-Wave GaN Power Amplifier Design written by Edmar Camargo and published by Artech House. This book was released on 2022-05-31 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives you – in one comprehensive and practical resource -- everything you need to successfully design modern and sophisticated power amplifiers at mmWave frequencies. The book provides an in-depth treatment of the design methodology for MMIC power amplifiers, then brings you step by step through the various phases of design, from the selection of technology and preliminary architecture considerations, to the effective design of the matching circuits and conversion of electrical-to-electromagnetic models. Detailed figures and numerous practical applications are included to help you gain valuable insights into these technologies and learn to identify the best path to a successful design. You’ll be guided through a range of new mmWave power applications that show particular promise to support new 5G systems, while mastering the use of GaN technology that continues to dominate the power mmWave applications due to its high power, gain, and efficiency. This is a valuable resource for power amplifier design engineers, technicians, industry R&D staff, and anyone getting into the area of power MMICs who wants to learn how to design at mmWave frequencies.
Book Synopsis Intermodulation Distortion Modelling and Measurement Techniques for GaN HEMT Characterization by :
Download or read book Intermodulation Distortion Modelling and Measurement Techniques for GaN HEMT Characterization written by and published by kassel university press GmbH. This book was released on with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis GaN HEMT Modeling and Design for Millimeter and Sub-millimeter Wave Power Amplifiers Through Monte Carlo Particle-based Device Simulations by : Diego Guerra
Download or read book GaN HEMT Modeling and Design for Millimeter and Sub-millimeter Wave Power Amplifiers Through Monte Carlo Particle-based Device Simulations written by Diego Guerra and published by . This book was released on 2011 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: The drive towards device scaling and large output power in millimeter and sub-millimeter wave power amplifiers results in a highly non-linear, out-of-equilibrium charge transport regime. Particle-based Full Band Monte Carlo device simulators allow an accurate description of this carrier dynamics at the nanoscale. This work initially compares GaN high electron mobility transistors (HEMTs) based on the established Ga-face technology and the emerging N-face technology, through a modeling approach that allows a fair comparison, indicating that the N-face devices exhibit improved performance with respect to Ga-face ones due to the natural back-barrier confinement that mitigates short-channel-effects. An investigation is then carried out on the minimum aspect ratio (i.e. gate length to gate-to-channel-distance ratio) that limits short channel effects in ultra-scaled GaN and InP HEMTs, indicating that this value in GaN devices is 15 while in InP devices is 7.5. This difference is believed to be related to the different dielectric properties of the two materials, and the corresponding different electric field distributions. The dielectric effects of the passivation layer in millimeter-wave, high-power GaN HEMTs are also investigated, finding that the effective gate length is increased by fringing capacitances, enhanced by the dielectrics in regions adjacent to the gate for layers thicker than 5 nm, strongly affecting the frequency performance of deep sub-micron devices. Lastly, efficient Full Band Monte Carlo particle-based device simulations of the large-signal performance of mm-wave transistor power amplifiers with high-Q matching networks are reported for the first time. In particular, a CellularMonte Carlo (CMC) code is self-consistently coupled with a Harmonic Balance (HB) frequency domain circuit solver. Due to the iterative nature of the HB algorithm, this simulation approach is possible only due to the computational efficiency of the CMC, which uses pre-computed scattering tables. On the other hand, HB allows the direct simulation of the steady-state behavior of circuits with long transient time. This work provides an accurate and efficient tool for the device early-stage design, which allows a computerbased performance evaluation in lieu of the extremely time-consuming and expensive iterations of prototyping and experimental large-signal characterization.
Book Synopsis ILL Temporary Item at S. Mobile by :
Download or read book ILL Temporary Item at S. Mobile written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Basic Properties of III-V Devices – Understanding Mysterious Trapping Phenomena by : Kompa, Günter
Download or read book Basic Properties of III-V Devices – Understanding Mysterious Trapping Phenomena written by Kompa, Günter and published by kassel university press GmbH. This book was released on 2014 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trapping effects in III-V devices pose a great challenge to any microwave device modeler. Understanding their physical origins is of prime importance to create physics-related reliable device models. The treatment of trapping phenomena is commonly beyond the classical higher-education level of communication engineers. This book provides any basic material needed to understand trapping effects occurring primarily in GaAs and GaN power HEMT devices. As the text material covers interdisciplinary topics such as crystal defects and localized charges, trap centers and trap dynamics, deep-level transient spectroscopy, and trap centers in passivation layers, the book will be of interest to graduate students of electrical engineering, communication engineering, and physics as well as materials, device, and circuit engineers in research and industry.
