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ELVA-1 Precision Calibrated Noise Sources

ELVA-1’s calibrated noise source ISSN-XX series delivers a uniform level of noise power spectral density within the whole waveguide frequency range. Sources are available in eight waveguide bands covering 26.4-170 GHz. A Silicon IMPATT diode is employed as a fundamental building block of the source. High stability of the device allows it to be used…...

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ELVA-1 Precision Calibrated Noise Sources

At a glance: Key parameters

Product categories: Noise Sources
Manufacturer: Elva-1

ELVA-1’s calibrated noise source ISSN-XX series delivers a uniform level of noise power spectral density within the whole waveguide frequency range. Sources are available in eight waveguide bands covering 26.4-170 GHz. A Silicon IMPATT diode is employed as a fundamental building block of the source. High stability of the device allows it to be used for test and instrumentation applications in place of gas-tube noise sources. Low DC power requirements eliminate the need for complex high voltage supplies. There are two operation modes: CW mode and pulsed AM mode with modulation frequency up to 1 kHz. Typical value of excess noise ratio (ENR) as a function of frequency is given on the plot below.

 

Model Number ISSN-28 ISSN-22 ISSN-19 ISSN-15 ISSN-12 ISSN-10 ISSN-08 ISSN-06
Frequency Band Ka Q U V E W F D
Range, GHz 26.5-40 33-50 40-60 50-75 60-90 75-110 90-140 110-170
Input waveguide WR28 WR22 WR19 WR15 WR12 WR10 WR8 WR6
Wavequide Flange UG599/U UG383/U UG383/U-M UG385/U UG-387/U UG387/U-M UG387/U-M UG387/U-M
Bandwidth, GHz Full Full Full Full Full Full Full Full
ENR, dB (nom) 15 14 13 13 13 12 12 12
ENR Flatness, dB ±1.0 ±1.5 ±1.5 ±1.5 ±1.5 ±1.5 ±2.0 ±2.5
Stability, dB/°C 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01
Stability/Day, dB 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
Biasing Voltage, V +18…+28
Sizes, mm* 50/75 50/75 50/75 50/75 50/60 50/60 50/60 50/60
* Cylinder diameter/length (without isolator)

Precision_Calibrated_CW_Noise_Sources

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