The Agilent/Keysight Q8486D is a waveguide power sensor for average power measurement in the 33 GHz to 50 GHz band. It delivers accurate readings across a 50 dB dynamic range (-70 dBm to -20 dBm) using a diode sensing element with low mismatch uncertainty. The sensor connects via UG-383/U waveguide flange and includes a 50 MHz calibration port for NIST-traceable millimeter-wave calibration. A Keysight 11708A 30 dB reference attenuator is supplied for calibration against the power meter’s 0 dBm, 50 MHz reference standard.
– Technical Specifications
• Frequency Range: 33 GHz to 50 GHz
• Power Measurement Type: Average Power
• Power Range: -70 dBm to -20 dBm (100 pW to 10 µW)
• Dynamic Range: 50 dB
• Sensing Element: Diode
• Waveguide Flange: UG-383/U
• Calibration Port: 50 MHz
• SWR: Excellent, designed to minimize mismatch uncertainty
• Calibration Traceability: U.S. National Institute of Standards and Technology (NIST) millimeter-wave sensor calibration
– Key Features
• Diode power sensing element converts AC voltage to proportional DC output requiring amplification before meter transfer
• Type-N connector for calibration interface with reference attenuator
• Threaded waveguide flange holes permit screw insertion from either side
• Supplied with protective plastic flange cover for connector safeguarding
• Keysight 11708A 30 dB reference attenuator included
– Typical Applications
• Millimeter-wave power measurement and monitoring
• Ka-band component characterization and verification
• Calibration and validation of RF test systems
– Compatibility & Integration
The Q8486D interfaces with EPM Series (N1913B/14B, N1913A/14A, E4418B/19B), EPM-P Series (E4416A/17A), P-Series (N1911A/12A), and VXI (E1416A) power meters. Legacy compatibility includes Keysight 435B, 436A, 437B, and 438A power meters. Not compatible with Keysight 435A or discontinued 70100A and 43X series instruments.
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