Results 31 to 40 of about 48,970 (305)
A Comprehensive Harmonic Analysis of Current-Mode Power Amplifiers
Energies, 2021 This work presents a comprehensive theoretical analysis of current-mode power amplifiers as a function of input power for different biasing classes under the common simplifying assumption of constant transconductance and hard current cut-off/saturation ...
Chiara Ramella +2 more
doaj +1 more source
Self-Phase Modulation-Induced Instability of High-Power Narrow-Linewidth Fiber Amplifiers
Photonics, 2023 In this study, we investigated the effect of self-phase modulation (SPM)-induced modulation instability (MI) on the spectral purity of high-power narrow-linewidth fiber amplifiers and established a spectral evolution model for SPM-induced MI in those ...
Xiaoqin Shan, Yunhan Zheng, Rihong Zhu
doaj +1 more source
GaN-based Power amplifiers for microwave applications
Ingeniería Investigación y Desarrollo, 2016 This paper presents a discussion about the design strategies of different kind of power amplifiers for RF/Microwave appli- cations, such as the tuned load power amplifier, class F, class F-1 and Doherty.
Jorge Julián Moreno-Rubio +5 more
doaj +1 more source
Design and implementation of a 1.65~3 GHz 500 watts power amplifier
Dianzi Jishu Yingyong, 2022 Modern transmission systems have put forward higher and higher requirements for the working frequency band and power level of power amplifiers, and the design of power amplifiers based on GaN power devices can meet these new requirements.
Xue Xin, Dong Liang, Wu Jiaqian
doaj +1 more source
Research and design of transient pulse damage in high-power RF amplifier
Dianzi Jishu YingyongDue to a variety of imperceptible design defects，high-power RF amplifiers are prone to transient pulse, which has a significant impact on the reliability and service life of the hardware，and seriously interfere with the quality of work.
Xu Hao
doaj +1 more source
IEEE Open Journal of Circuits and Systems, 2023 Recent advancements in low power and low noise front-end amplifiers have made it possible to support high-speed data transmission within the deep roll-off regions of conventional wireline channels.
Yudhajit Ray, Shreyas Sen
doaj +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Utilizing Neural Network for Designing Load‐Independent Class E Inverter
IET Power ElectronicsThis paper presents the design, simulation, and fabrication of a load‐independent Class E inverter utilizing an artificial neural network (ANN) facilitator.
Mehrnaz Khodadoost +2 more
doaj +1 more source
FEBS Letters, EarlyView.Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura +2 more
wiley +1 more source