Results 31 to 40 of about 229,690 (293)
Investigation of the possibility of increasing the sensitivity of a microwave radiometer [PDF]
ITM Web of Conferences, 2019 The results of a sensitivity study of various types of quadratic detectors for a microwave radiometer are presented, both with and without a low-noise amplifier.
Luchinin Alexander, Malygin Ivan
doaj +1 more source
Journal of Research of the National Bureau of Standards, 1987 We describe the design, schematics, and performance of a very low noise FET cascode input amplifier. This amplifier has noise performance of less than [Formula: see text] and 0.25 [Formula: see text] over the 500 Hz to 50 kHz frequency range. The amplifier is presently being used in conjunction with a Penning ion trap but is applicable to a wide ...
Jefferts, Steven R., Walls, F. L.
openaire +1 more source
Ultrastable low-noise current amplifier
, 2014 An ultrastable low-noise current amplifier (ULCA) is presented. The ULCA is a non-cryogenic instrument based on specially designed operational amplifiers and resistor networks.
Ahlers, Franz Josef +4 more
core +1 more source
, 2012 A new method of absolute calibration of sky noise temperature using a three-position switched spectrometer, measurements of antenna and low noise amplifier impedance with a vector network analyzer, and ancillary measurements of the amplifier noise waves ...
Bowman, Judd D., Rogers, Alan E. E.
core +1 more source
56.6 dB high gain L-band EDFA utilizing short-length highly-doped erbium rare-earth material [PDF]
Journal of the European Optical Society-Rapid Publications, 2014 In this paper, we experimentally investigate the performance of an efficient high gain L-band erbium-doped fiber (EDF) amplifier structure utilizing short-length highly-doped erbium rare-earth material with a single pump source.
Al-Mansoori M. H., Al-Ghaithi W. S.
doaj +1 more source
Experimental Determination of the Gain Distribution of an Avalanche Photodiode at Low Gains
, 2008 A measurement system for determining the gain distributions of avalanche photodiodes (APDs) in a low gain range is presented. The system is based on an ultralow-noise charge--sensitive amplifier and detects the output carriers from an APD.
Akiba, Makoto +2 more
core +1 more source
, 2005 Two large-area, low noise, high speed fluorescence detectors have been built. One detector consists of a photodiode with an area of 28 mm x 28 mm and a low noise transimpedance amplifier.
D. DeMille +4 more
core +3 more sources
100 K uncooled GaAs mesfet amplifier as paramp replacement [PDF]
, 1978 The characterisation, design and realisation of a low noise GaAs m.e.s.f.e.t. amplifier to replace a narrow band parametric amplifier at 1.7 GHz is described.
de los Reyes, Elías
core +2 more sources
Low noise tuned amplifier [PDF]
, 1984 A bandpass amplifier employing a field effect transistor amplifier first stage is described with a resistive load either a.c. or directly coupled to the non-inverting input of an operational amplifier second stage which is loaded in a Wien Bridge ...
Kleinberg, L. L.
core +1 more source
A 5.3mW, 2.4GHz ESD protected Low-Noise Amplifier in a 0.13μm RFCMOS technology [PDF]
, 2007 An Electrostatic Discharge (ESD) protected Low- Noise Amplifier (LNA) for the 2.4 GHz ISM band designed in a 0.13 mum standard RFCMOS technology is presented. The amplifier, including packaging effects, achieves 16.8 dB power gain, reflexion coefficients
Brandano, Davide +3 more
core +1 more source