Results 21 to 30 of about 849,396 (352)

Transimpedance Amplifier for Noise Measurements in Low-Resistance IR Photodetectors

open access: yesApplied Sciences, 2023
This paper presents the design and testing of an ultra-low-noise transimpedance amplifier (TIA) for low-frequency noise measurements on low-impedance (below 1 kΩ) devices, such as advanced IR photodetectors.
Krzysztof Achtenberg   +4 more
doaj   +1 more source

Ultra low noise YBCO nanoSQUIDs implementing nanowires [PDF]

open access: yes, 2014
We present results on ultra low noise YBa$_2$Cu$_3$O$_{7-\delta}$ nano Superconducting QUantum Interference Devices (nanoSQUIDs). To realize such devices, we implemented high quality YBCO nanowires, working as weak links between two electrodes.
Arpaia, Riccardo   +5 more
core   +2 more sources

Matched wideband low-noise amplifiers for radio astronomy [PDF]

open access: yes, 2009
Two packaged low noise amplifiers for the 0.3–4 GHz frequency range are described. The amplifiers can be operated at temperatures of 300–4 K and achieve noise temperatures in the 5 K range (
Bardin, J.   +3 more
core   +1 more source

A High-Temperature, Low-Noise Readout ASIC for MEMS-Based Accelerometers

open access: yesSensors, 2019
This paper presents the development and measurement results of a complementary metal oxide semiconductor (CMOS) readout application-specific integrated circuit (ASIC) for bulk-silicon microelectromechanical system (MEMS) accelerometers. The proposed ASIC
Min Qi, An-qiang Guo, Dong-hai Qiao
doaj   +1 more source

ESTIMATING THE SPECTRAL DENSITY OF FLICKER NOISE OF LOW-NOISE OSCILLATORS AT INFRA-LOW FREQUENCIES [PDF]

open access: yesRadio Physics and Radio Astronomy, 2022
Subject and Purpose. Designers of the research radars intended for detecting manifestations of biological activity of living organisms may be interested in the noise characteristics shown by their oscillators at offsets about 10–2 Hz or even 10–3Hz from ...
V. M. Konovalov, K. O. Lukin
doaj   +1 more source

A low-noise series-array Josephson junction parametric amplifier [PDF]

open access: yes, 1996
We have obtained parametric gain at 19 GHz from a distributed Josephson junction parametric amplifier whose active gain medium consists of a series array of 1000 Josephson junctions embedded in a coplanar waveguide.
Movshovich, R.   +3 more
core   +1 more source

Investigation of Noise Properties in the InP HEMT for LNAs in Qubit Amplification: Effects From Channel Indium Content

open access: yesIEEE Journal of the Electron Devices Society
The InP high-electron-mobility transistor (HEMT) is employed in cryogenic low-noise amplifiers (LNAs) for the readout of faint microwave signals in quantum computing.
Junjie Li   +3 more
doaj   +1 more source

Low-Noise Programmable Voltage Source [PDF]

open access: yesElectronics, 2020
This paper presents the design and testing of a low-noise programmable voltage source. Such a piece of instrumentation is often required as part of the measurement setup needed to test electronic devices without introducing noise from the power supply (such as photodetectors, resistors or transistors).
Krzysztof Achtenberg   +4 more
openaire   +3 more sources

A Survey of Neural Front End Amplifiers and Their Requirements toward Practical Neural Interfaces

open access: yesJournal of Low Power Electronics and Applications, 2014
When designing an analog front-end for neural interfacing, it is hard to evaluate the interplay of priority features that one must upkeep. Given the competing nature of design requirements for such systems a good understanding of these trade-offs is ...
Eric Bharucha   +2 more
doaj   +1 more source

Flow structure and unsteady characteristics of fountain flow induced by dual impinging jets

open access: yesKongqi donglixue xuebao
The flow-field structure and mechanical characteristics of dual impinging jets are critical issues during the takeoff and landing phases of aircraft. However, the unsteady characteristics of the fountain effect induced by dual impinging jets have not yet
Yifan Zhao   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy