Attenuation measurement in a waveguide of a thermal-noise generator for a standard of spectral noise-power density

1982 ◽  
Vol 25 (11) ◽  
pp. 935-937
Author(s):  
G. G. Petrosyan ◽  
V. P. Turyanskii
Keyword(s):  
Power Density ◽  
Thermal Noise ◽  
Noise Generator ◽  
Noise Power ◽  
Attenuation Measurement ◽  
Noise Power Density ◽  
Spectral Noise Power Density

scholarly journals Investigation influence of switching tests coatings of magnetically controlled contacts on the surface structure

2021 ◽  
Vol 2103 (1) ◽  
pp. 012232
Author(s):  
D S Loginov ◽  
A V Baskakova ◽  
V G Litvinov ◽  
T A Kholomina ◽  
N B Rybin ◽  
...  
Keyword(s):  
Surface Structure ◽  
Power Density ◽  
Noise Power ◽  
Density Measurements ◽  
Noise Parameters ◽  
Noise Power Density ◽  
Spectral Noise Power Density

Abstract The results of spectral noise power density measurements of reed switches 10 samples with and without Au-Ru coating are analyzed. The dependences of the spots area formed during switching tests on the electrodes on various noise parameters are constructed.

Solar-Blind AlGaN-based Schottky Photodiodes With High Detectivity and Low Noise

2002 ◽  
Vol 743 ◽  
Author(s):  
Necmi Biyikli ◽  
Orhan Aytur ◽  
Ibrahim Kimukin ◽  
Turgut Tut ◽  
Ekmel Ozbay
Keyword(s):  
Power Density ◽  
Dark Current ◽  
Reverse Bias ◽  
Low Noise ◽  
Noise Power ◽  
Cutoff Wavelength ◽  
Solar Blind ◽  
Fabrication And Characterization ◽  
Noise Power Density

AbstractWe report on the design, fabrication and characterization of solar-blind Schottky photodiodes with high detectivity and low noise. The devices were fabricated on n-/n+ AlGaN/GaN hetero-structures using a microwave compatible fabrication process. Using Al0.38Ga0.62N absorption layer, true solar-blind operation with a cutoff wavelength of ∼274 nm was achieved. The solar-blind detectors exhibited < 400 fA dark current in the 0–25 V reverse bias regime, and a maximum responsivity of 89 mA/W around 267 nm. The photovoltaic detectivity of the devices were in excess of 2.6×1012 cmHz1/2/W, and the detector noise was 1/f limited with a noise power density less than 3×10−29 A2/Hz at 10 KHz.

Thermal noise generator of the waveguide-coaxial type

1980 ◽  
Vol 23 (5) ◽  
pp. 470-471
Author(s):  
O. M. Reshetnikov
Keyword(s):  
Thermal Noise ◽  
Noise Generator
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