The Keysight (Agilent HP) 8491B is a coaxial fixed attenuator that provides precision attenuation, flat frequency response, and low SWR from DC to 18 GHz. It is equipped with Type-N connectors and is swept-frequency tested to ensure specification compliance across broad frequency ranges. Calibration points are provided directly on an attached nameplate.
Specifications
Electrical Specifications
| Parameter | Value |
|---|---|
| Frequency Range | DC to 18 GHz |
| Impedance | 50 Ω |
| Nominal Attenuation Values | 3 dB, 6 dB, 10 dB, 20 dB, 30 dB, 40 dB, 50 dB, 60 dB |
| Maximum SWR (DC to 8 GHz) | 1.2 |
| Maximum SWR (8 to 12.4 GHz) | 1.3 |
| Maximum SWR (12.4 to 18 GHz) | 1.5 |
Power Handling
| Parameter | Value |
|---|---|
| Maximum Average Power | 2 W |
| Maximum Peak Power | 100 W |
Mechanical and Physical Specifications
| Parameter | Value |
|---|---|
| Connector Type | Type-N |
| Connector Gender | Male to Female |
Ordering and Configurations
| Parameter | Value |
|---|---|
| Attenuation Value Options | 3 dB, 6 dB, and 10 dB increments from 10 dB to 60 dB |
Technology
Coaxial
Applications
RF and Microwave Test
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