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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
We describe a measurement system for model parameter extraction and full characterization of power transistors in frequency and time domain. It provides bias dependent linear S parameters, power transfer characteristics, intermodulation data, and RF waveforms in dependence on harmonic load tuning. The power level exceeds 30 dBm for highly mismatched devices. The system is for full on-wafer operation including all calibration steps. Examples of measurements, e.g. RF-I/V curves, are presented for low-voltage GaInP/GaAs HBTs. These experimental results are confirmed by a scaleable large-signal HBT model, which demonstrates both usefulness of the measurement system and performance of the nonlinear model.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
We describe a measurement system for model parameter extraction and full characterization of power transistors in frequency and time domain. It provides bias dependent linear S parameters, power transfer characteristics, intermodulation data, and RF waveforms in dependence on harmonic load tuning. The power level exceeds 30 dBm for highly mismatched devices. The system is for full on-wafer operation including all calibration steps. Examples of measurements, e.g. RF-I/V curves, are presented for low-voltage GaInP/GaAs HBTs. These experimental results are confirmed by a scaleable large-signal HBT model, which demonstrates both usefulness of the measurement system and performance of the nonlinear model.
Author: Muhammad Akmal Chaudhary Publisher: BrownWalker Press ISBN: 1627347143 Category : Technology & Engineering Languages : en Pages : 342
Book Description
The complexity requirements of future wireless communication systems now indeed demand a more general theoretically robust design methodology for nonlinear circuits, such as the power amplifiers. The present design methodology for nonlinear Radio Frequency components and circuits has become a key hindrance in the evaluation, development and testing of modern communication systems. The fundamental nature of this engineering challenge makes it highly unlikely to be addressed within the competitive Radio Frequency industry with short-term profitability, time to market and risk aversion considerations.
The book , therefore, includes developing advanced waveform measurement setups, multi-tone measurement techniques, characterization and modelling of nonlinear distortion in microwave power transistors and design of high-power and spectrum-efficient RF power amplifiers for future wireless communication systems. Further enlists the key impediments in Power Amplifier design through the application of waveform engineering to embrace simultaneously efficiency and linearity objectives of power amplifier design as well as investigate the most robust and appropriate behavioral model formulation that includes memory effects.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
A versatile pulsed I(V) and 40 GHz pulsed S parameters measurement system of microwave transistors is described Capability of discrimination between thermal and trapping effects with a pulse set-up is demonstrated A method to measure electrically the thermal resistance and capacitance of transistors with a pulse set-up is proposed Finally, it is explained how to derive transistor nonlinear characteristics from these measurements for modeling purposes.
Author: Geoff H. Bryant Publisher: IET ISBN: 9780863412967 Category : Technology & Engineering Languages : en Pages : 434
Book Description
Textbook covering a wide range of microwave measurements in the time and frequency domains, including reflectometry, the Smith chart, spectrum analyzers, vector and scalar analyzers, multiports, power, noise, frequency stability, time domain reflectometry, and a comprehensive account of antenna far and near field measurements. For young engineers requiring a good background in microwave measurement principles. Annotation copyrighted by Book News, Inc., Portland, OR
Author: Alan Fantom Publisher: IET ISBN: 9780863411205 Category : Technology & Engineering Languages : en Pages : 302
Book Description
Surveys the wide range of meters and techniques for calibrating and intercomparing the power of radio frequencies and microwaves in the range 1MHz to 200 GHz, a procedure necessary in many branches of science and technology. The reader is assumed to be at least a graduate level electrical engineer or physicist. Considers the fundamentals; calorimetry, which is the basis for most measurement; the various types of non-calorimeter power meters, including thermistor, thermoelectric, and diode types, and force-operated and other types; calibration and intercomparison methods; pulsed power measurements; related voltage and current measurement; and the international intercomparison of standards. Annotation copyrighted by Book News, Inc., Portland, OR
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Author: Muhammad Akmal Chaudhary
Author: John L. B. Walker
Author: Sean J. Gillespie
Author: 
Author: Geoff H. Bryant
Author: Jonas Urbonas
Author: Alan Fantom
Author: Algie L. Lance
Author: Daniel Raymond Scherrer