The Agilent/Keysight 85110A is a pulsed RF S-parameter test set designed for characterizing devices operating under pulsed signal conditions across 2 GHz to 20 GHz. This specialized instrument integrates with network analyzers to deliver precise S-parameter measurements on high-frequency components with up to 20 W CW output power handling capability.
Technical Specifications
• Frequency Range: 2 GHz to 20 GHz
• DUT Power Handling: Up to 20 W CW output power
• Input Protection: Four 90 dB step attenuators safeguard fundamentally-mixed down converter inputs
• Mounting: Rack mountable with optional hardware kits and handles available
– Key Features
The 85110A employs a stepped attenuator architecture to protect sensitive mixer inputs during high-power device characterization. This design permits reliable operation across the full 2–20 GHz band without sacrificing measurement fidelity. Extended frequency coverage options extend capability to 0.5 GHz to 20 GHz and 2 GHz to 50 GHz configurations.
– Typical Applications
The test set is engineered for pulsed-RF measurement systems where conventional CW S-parameter techniques prove inadequate. Applications include transistor and amplifier characterization under modulated drive conditions, and devices requiring pulsed excitation to prevent thermal degradation or self-heating effects.
– Compatibility & Integration
The 85110A interfaces with HP 8510B network analyzers at firmware revision HP 85108.05.00 and higher. It supports migration pathways from legacy 8510 and 8530 systems to modern PNA Series Network Analyzers. Synthesizer compatibility includes HP 8340A/B and HP 8341A/B units with firmware dated March 31, 1988, or later. Model variants such as the 85110A-H60 and 85110A-001-H30 accommodate specialized measurement requirements.
