A Comprehensive Harmonic Analysis of Current-Mode Power Amplifiers
نویسندگان
چکیده
This work presents a comprehensive theoretical analysis of current-mode power amplifiers as function input for different biasing classes under the common simplifying assumption constant transconductance and hard current cut-off/saturation. Typically, amplifier performance behavior are carried out only at maximum output power. However, to achieve high data-rates, modern telecommunication systems adopt signals characterized by very peak-to-average ratio, thus it is useful analyze back-off. Moreover, in many cases, enhance efficiency and/or apply harmonic shaping techniques, clipped drain-source current, which approaches square wave, required. The classical can be extended low levels power-independent conduction angle, true class-A class-B amplifiers, does not take into account possible waveform clipping current. complete Fourier FET-based quiescent any level accounting case, up square-wave limit, reorganizing completing material that found textbooks field.
منابع مشابه
Theoretical analysis of mode instability in high-power fiber amplifiers.
We present a simple theoretical model of transverse mode instability in high-power rare-earth doped fiber amplifiers. The model shows that efficient power transfer between the fundamental and higher-order modes of the fiber can be induced by a nonlinear interaction mediated through the thermo-optic effect, leading to transverse mode instability. The temporal and spectral characteristics of the ...
متن کاملanalysis of power in the network society
اندیشمندان و صاحب نظران علوم اجتماعی بر این باورند که مرحله تازه ای در تاریخ جوامع بشری اغاز شده است. ویژگیهای این جامعه نو را می توان پدیده هایی از جمله اقتصاد اطلاعاتی جهانی ، هندسه متغیر شبکه ای، فرهنگ مجاز واقعی ، توسعه حیرت انگیز فناوری های دیجیتال، خدمات پیوسته و نیز فشردگی زمان و مکان برشمرد. از سوی دیگر قدرت به عنوان موضوع اصلی علم سیاست جایگاه مهمی در روابط انسانی دارد، قدرت و بازتولید...
15 صفحه اولMode competition in high power fiber amplifiers.
Using a beam propagation model of Yb3+ doped, CW fiber amplifiers we show that gain saturation by a strong fundamental mode significantly suppresses the growth of higher order modes with parallel polarization, but enhances the growth of higher order modes with perpendicular polarization. We quantify this effect in straight and bent fibers, with full core or restricted area doping.
متن کاملMode instability in high power fiber amplifiers.
For powers exceeding a sharp threshold in the vicinity of several hundred watts the beam quality from some narrow bandwidth fiber amplifiers is severely degraded. We show that this can be caused by transverse thermal gradients induced by the amplification process.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Energies
سال: 2021
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en14217042