The Keysight R8486D is a waveguide power sensor designed for precise RF and microwave power measurements in the millimeter-wave band. Operating from 26.5 GHz to 40 GHz, it employs a diode power sensing element to measure average power across a 50 dB dynamic range. The sensor delivers -70 dBm to -20 dBm power measurement capability with excellent SWR performance to minimize mismatch uncertainty. A 50 MHz calibration port enables reliable calibration procedures with traceability to NIST millimeter-wave sensor standards. The R8486D integrates with Keysight power meters across multiple product lines and includes a Keysight 11708A 30 dB attenuator for calibration with a 0 dBm, 50 MHz reference.
Technical Specifications
• Frequency Range: 26.5 GHz to 40 GHz
• Measurement Type: Average power
• Power Range: -70 dBm to -20 dBm
• Dynamic Range: 50 dB
• Sensing Element: Diode power sensing element
• Calibration Port: 50 MHz
• SWR: Excellent—minimizes mismatch uncertainty
• Calibration Traceability: NIST millimeter-wave sensor calibration
• Dimensions: 348.3 mm (L) × 212.6 mm (W) × 88.5 mm (H)
– Key Features
• Waveguide interface for direct insertion into millimeter-wave test systems
• Integrated 50 MHz calibration port for in-situ verification
• Supplied with Keysight 11708A 30 dB attenuator for extended dynamic range measurements
• Low-loss design with excellent SWR performance
• NIST-traceable calibration standard
– Typical Applications
• Millimeter-wave power measurement in system characterization
• Transmitter and receiver power verification at Ka-band
• Component and subsystem validation in high-frequency RF designs
– Compatibility & Integration
The R8486D operates with Keysight power meters:
• EPM Series: N1913A, N1914A, E4418B, E4419B
• EPM-P Series: E4416A, E4417A
• P-Series: N1911A, N1912A
• E1416A VXI
• Legacy models: 70100A, 43X
