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WG-NS Series - Waveguide Noise Sources |
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Thursday, 24 May 2007 |
Features
- Excess Noise Ratio (ENR) 15 dB typical
- High stability
- Low output ripple
- No high voltage supply required
- Compact solid state source
- High reliability, rugged construction
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Applications
- Calibration
- Noise figure measurement
- Instruments and test equipment
- Space and Hi-Rel systems
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Model WG-NS-10 |
Description
The solid-state noise source 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. The 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. |
Specifications
| Model |
Frequency
(GHz) |
Waveguide
(EIA) |
Flange |
Nominal ENR
(dB) |
Typical Flatness
(dB) |
Stability
(dB/°C) |
Typical Stability
(dB) |
Bias Voltage
(V) |
WG-NS-28
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26.5-40
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WR28
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UG-381/U
or
UG-599/U |
15 |
±1 |
0.01 |
0.05 |
+18 |
| WG-NS-22 |
33-50
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WR22
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UG-383/U |
14
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±1.5 |
0.01 |
0.05 |
+18 |
| WG-NS-19 |
40-60
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WR19
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UG-383/U-M |
13
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±1.5 |
0.01 |
0.05 |
+18 |
| WG-NS-15 |
50-75
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WR15
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UG-385/U |
13
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±1.5 |
0.01 |
0.05 |
+18 |
| WG-NS-12 |
60-90
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WR12
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UG-387/U |
13
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±1.5 |
0.01 |
0.05 |
+18 |
| WG-NS-10 |
75-110
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WR10
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UG-387/U-M |
12
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±1.5 |
0.01 |
0.05 |
+18 |
| WG-NS-08 |
90-140
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WR08
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UG-387/U-M |
12
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±1.5 |
0.01 |
0.05 |
+18 |
WG-NS-06
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110-170
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WR06
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UG-387/U-M |
12
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±2
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0.01 |
0.05 |
+18 |
Notes
- Maximum operating temperature is +60 °C
- Diode operating current is 50mA
- A limiting value of modulation frequency is 1kHz (external triggering)
- Triggering signal amplitude is TTL level
- Bias voltage is +18V. It is possible to supply the noise source with +28 Vdc biasing for compatibility with commonly used noise meters.
- ENR can be increased for narrower bandwidth. Please contact FTL.
- Power supply for input power 220VAC/50Hz, 110VAC/60Hz or 100VAC/50Hz are available upon request.
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Unit 1, Airport East Business Park, Farmers Cross, Cork, Ireland
Phone: +353 21 4849170
FAX: +353 21 489192
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