Agilent/Keysight 8514B

The Agilent/Keysight 8514B is an S-parameter test set that measures all four S-parameters of a two-port device with a single connection, eliminating the need for physical device reversal. Operating from 45 MHz to 20 GHz, it integrates with network analyzers to deliver broadband coaxial measurements across RF and microwave applications. The coupler-based architecture incorporates a separate reference channel for each incident port, enabling direct characterization of component electrical behavior without repositioning.

– Technical Specifications

• Frequency Range: 45 MHz to 20 GHz
• Connectors: 3.5 mm male (NMD-3.5 mm test ports); 7 mm precision connectors adaptable with appropriate adapters
• S-Parameter Measurement: All four S-parameters of two-port devices
• Architecture: Coupler-based with independent reference channels per incident port
• RF Control: Built-in electronic switch; two 90 dB step attenuators for incident power control at Port 1 and Port 2
• Bias Networks: Two bias networks rated at 500 mA, 40 Vdc maximum for active device testing
• Impedance: 50 ohm nominal
• Operating Power Level (Test Ports): 2 to −6 dBm
• Dynamic Range: Standard configuration available; Option H83 reduces dynamic range by 2 dB (0.045–12.4 GHz) and 4 dB (12.4–20 GHz)

– Key Features

• Single-connection measurement eliminates physical device repositioning
• Option H83 enables peak CW power to 20 watts with dynamic range trade-offs
• High Forward Dynamic Range Configuration (Option 003) reverses Port 2 coupler for optimized forward measurement performance
• Option H83 removes bias tees for applications requiring standard coupler configuration

– Typical Applications

Component and network characterization in RF and microwave environments; active device testing requiring DC bias; single-port access measurements where device manipulation is impractical or destructive.

– Compatibility & Integration

Designed for HP8510 and Keysight 8510C network analyzers. Operating and Service Manuals are available, including documentation 08514-90014.