The Agilent/Keysight 8493B is a precision coaxial fixed attenuator engineered for wideband signal power reduction in RF and microwave systems. Operating from DC to 18 GHz with 50 ohm impedance, it delivers accurate attenuation across calibration, testing, and signal conditioning applications. Swept-frequency testing validates performance at all frequencies within its operational range.
Technical Specifications
• Frequency Range: DC to 18 GHz
• Impedance: 50 ohm
• Nominal Attenuation Values: 3 dB, 6 dB, 10 dB, 20 dB, and 30 dB
• Maximum Input Power: 2 W average; 100 W peak
• Attenuation Accuracy:
– 3 dB: ±0.3 dB (DC to 18 GHz)
– 6 dB: ±0.3 dB (DC to 12.4 GHz); ±0.4 dB (12.4 to 18 GHz)
– 10 dB: ±0.6 dB (DC to 18 GHz)
– 20 dB: ±0.6 dB (DC to 12.4 GHz); ±1.0 dB (12.4 to 18 GHz)
– 30 dB: ±1.0 dB (DC to 18 GHz)
• Maximum SWR:
– 1.2 up to 8 GHz
– 1.3 up to 12.4 GHz
– 1.5 up to 18 GHz
• Connectors: SMA male to SMA female
– Key Features
• Heat-treated beryllium copper SMA connectors provide enhanced mechanical strength and wear resistance
• Precision construction ensures stable attenuation across the full frequency spectrum
• Calibration reference points provided on nameplate chart affixed to each unit
• Swept-frequency tested for guaranteed performance validation at all operating frequencies
– Typical Applications
• RF and microwave system calibration
• Signal power conditioning and measurement
• Test and measurement signal chains requiring precise attenuation
– Compatibility & Integration
The 8493B interfaces via standard SMA (SubMiniature version A) connectors, compatible with SMA-equipped RF systems and instrumentation.
