Review of Efficiency CMOS Class AB Power Amplifier Topology in Gigahertz Frequencies [PDF]
, 2022 This paper reviewed the efficiency of CMOS class AB power amplifier topology especially in gigahertz frequencies. CMOS class AB power amplifier is a compromise between class A and class B in terms of linearity and efficiency between 50% to 78.5%. However,
Masra, S.M.W. +7 more
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Design and Stability Analysis Techniques for Switching-Mode Nonlinear Circuits: Power Amplifiers and Oscillators [PDF]
, 2006 A design technique for kW level switching mode power amplifiers is presented. Several push pull pairs, independently tuned to Class E/Fodd, are combined by a distributed active transformer.
Jeon, Sanggeun
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Intrinsic multichannel power control in cascaded power-equalizing erbium-doped fiber amplifiers [PDF]
, 2000 We numerically investigate the performance of a cascade of four-channel power-equalizing reflective erbium-doped fiber amplifiers (EDFAs). The EDFAs reflect different channels at different points so that different channels interact with partly different ...
Nilsson, J.
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Resolution Improvement in a High-Power Magnetic Resonance Imaging Gradient Power Amplifier [PDF]
, 2022 High-resolution gradient power amplifiers are required to generate high-fidelity gradient fields in magnetic resonance imaging (MRI) systems. Various aspects of gradient power amplifiers have been the subject of research in the past years, however ...
Rietveld, Gert +7 more
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Tunable single-frequency ytterbium-sensitized erbium-doped fiber MOPA source with 150W (51.8 dBm) of output power at 1563 nm [PDF]
, 2005 A single-frequency, single-mode ytterbium-sensitized erbium-doped fiber master-oscillator power-amplifier generated 150 W of continuous-wave output power at 1563 nm with 33% slope efficiency and was tuned in the range of 1546 to 1566 nm at >125 ...
Jeong, Y. +9 more
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An approach to harmonic load- and source-pull measurements for high-efficiency PA design [PDF]
, 2004 High-efficiency power-amplifier design requires numerous efforts to investigate both input and output harmonic terminations effects. A simplified theoretical approach to clarify the relevance of such terminations is presented here, and design criteria to
Ernesto Limiti +18 more
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Cladding-pumped Raman fiber with a W-type core designed for power scaling
, 2009 We design a cladding-pumped fiber Raman amplifier with a wavelength-filtering W-type core for the suppression of the 2nd-order Raman Stokes.
J. Ji +5 more
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A Switched-Mode Power Amplifier for Ion Energy Control In Plasma Etching [PDF]
, 2020 Plasma etching is an important process in the semiconductor manufacturing process. In order to precisely control the ion energy for better process quality, a tailored pulse-shape voltage waveform is applied to the plasma reactor table.
Vermulst, Bas J.D.; id_orcid +9 more
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, 2021 0000-0001-6465-2786We report on the first demonstration of laser-diode-pumped master-oscillator power-amplifier (MOPA) system based on Er-doped bulk material working at 2920 nm.
UEHARA, Hiyori +3 more
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On the design of class-J microwave power amplifier
, 2019 Due to the ISM band being unlicensed for communication applications, a lot of applications have been developed in this band and a good example is WiFi IEEE 802.11a, b, g, n of Bluetooth. This numeracy of applications motivated this paper.
Karugu, James +3 more
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