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Technical Overviews
Introduction
Key Specifications
The Keysight Technologies, Inc. 8490G family is a line of precision fixed coaxial attenuators with performance specified up to 67 GHz. These attenuators use the 1.85 mm coaxial connector and exhibit excellent SWR and accuracy performance from DC to 67 GHz. The 8490G family has attenuation values of 3, 6, 10, 20, 30 and 40 dB.
The Keysight 8490G family of 1.85 mm fixed coaxial connectors are assembled and tested with the same meticulous care as their lower frequency counterparts: the Keysight 8490D, 8491 and 8493 families. These attenuators are tested on Keysight precision Network Analyzers to assure full specifications over their entire frequency range.
Applications
Ruggedness, reliability, and small size make these attenuators suitable for use on bench as well as on system level. With their accuracy and low SWR, they are ideally suited for extending the range of sensitive power meters for high power measurements. The same characteristics lend themselves to applications such as calibration standards and RF substitution measurements. With their broad DC to 67 GHz frequency range and reasonable cost, general applications such as the reduction of power level to sensitive components and instrumentation systems are attractive and appropriate uses for these attenuators.
Specifications
Specifications describe the instrument’s warranted performance over the temperature range 0°C to +55°C (except where noted). Supplemental and typical characteristics are intended to provide typical but non-warranted performance parameters. These are denoted as “typical”, “nominal” or “approximate”.
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