The Agilent/Keysight 87511A S-Parameter Test Set is a 50 Ω RF interface module that enables accurate S-parameter characterization of two-port devices from 100 kHz to 500 MHz. Operating with the 8751A Network Analyzer, this test set routes signals for simultaneous forward and reverse transmission and reflection measurements without requiring device reconnection.
Technical Specifications
• Frequency Range: 100 kHz to 500 MHz
• Characteristic Impedance: 50 Ω
• Maximum Operating Level: 20 dBm
• Device Type: Two-port
• Measurement Parameters: S-parameters, reflection and transmission characteristics
– Key Features
• Directivity performance: >35 dB from 300 kHz–500 MHz; >30 dB from 100 kHz–300 kHz; >40 dB from 300 kHz–200 MHz; >35 dB from 200 MHz–500 MHz
• RF input isolation (R, A, B ports): >30 dB (100 kHz–300 kHz); >33 dB (300 kHz–500 MHz)
• Three Type N female 50 Ω RF inputs for single-ended operation
• Test ports with 50 Ω connectors: Type N standard; 7 mm connectors available (Option 87511A-800)
• Bidirectional measurement architecture eliminates need for DUT repositioning
• Rack-mount configuration supported (19 inch equipment rack)
– Typical Applications
• Filter insertion loss and return loss measurement
• Amplifier gain and stability characterization
• Impedance matching network validation
• Component reflection coefficient analysis across UHF and low microwave bands
– Compatibility & Integration
This test set is purpose-designed for integration with the Agilent/Keysight 8751A Network Analyzer, which provides measurement control and data processing. The 87511A connects via Type N female RF inputs and operates as a passive test interface requiring no external power. Calibration kits are sold separately.
