Results 71 to 80 of about 669,562 (292)
Noise figure measurement of three-port differential low-noise amplifiers [PDF]
, 2012 A measurement procedure to de-embed the noise figure (NF) of a three-port differential low-noise amplifier (LNA) from single-ended (SE) measurements is presented.
Prinsloo D.S., Meyer P.
core +1 more source
Low NF Active Quasi‐Circulator Design Based on Noise Suppression Technique
IET Microwaves, Antennas & PropagationIn this paper, an active quasi‐circulator (QC) exhibiting a low noise figure (NF) of 1.1 dB is presented, which is composed of two couplers, three connecting transmission lines (TLs) and a nonreciprocal stage.
Zhan Chen, Chunxia Zhou, Wen Wu
doaj +1 more source
FEBS Open Bio, EarlyView.Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley +1 more source
Numerical analysis of gain saturation, noise figure, and carrier distribution for quantum-dot semiconductor-optical amplifiers [PDF]
, 2008 The gain saturation behaviors and noise figure are numerically analyzed for quantum-dot semiconductor optical amplifiers (QD-SOAs). The carrier and photon distributions in the longitudinal direction as well as the photon energy dependent facet ...
yzhuang@red.semi.ac.cn +3 more
core
Extraction of noise parameters of transistor using a spectrum analyser and 50^ noise figure measurements only. [PDF]
, 1998 A method for measuring the four noise parameters of a transistor in the microwave range using a configuration based on a conventional spectrum analyser is presented.
Lázaro Guillén, Antoni +1 more
core +4 more sources
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
Noise figure of the transistor amplifier [PDF]
, 1951 The noise figure of the transistor amplifier is of special interest since the large quantity of excess noise present limits the usefulness of the transistor as a low-noise amplifier.
Hatton, Walter Lewis
core
Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies
FEBS Open Bio, EarlyView.We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli +8 more
wiley +1 more source
Ural Radio Engineering JournalIn radiophotonic microwave transmission systems, as in any radioelectronic systems, noise characteristics determine the potential of accuracy and range. As a measure of the difference between the noise characteristics of optoelectronic microwave signal converters from ideal ones, the use of the noise figures of the elements included in their ...
A. S. Luchinin, I. V. Malygin
openaire +1 more source