The Keysight N5225B is a 50 GHz PNA microwave network analyzer engineered for high-precision RF and microwave component characterization. Operating from 10 MHz to 50 GHz (extendable to 900 Hz with Low Frequency Extension), it delivers measurement speed of 3.6 to 23 μsec/point with dynamic range up to 134 dB at 20 GHz and trace noise of 0.002 dB RMS at 1 kHz bandwidth. The instrument supports both 2-port single-source and 4-port dual-source configurations, making it suitable for development, production, service, and metrology environments across aerospace, defense, and communications sectors.
Technical Specifications
Frequency Range: 10 MHz to 50 GHz; extendable to 900 Hz with Low Frequency Extension option
Dynamic Range: Up to 134 dB at 20 GHz at test port
Trace Noise: 0.002 dB RMS at 1 kHz bandwidth
Source Output Power: +13 dBm at 1 GHz to +11 dBm at 67 GHz
Measurement Speed: 3.6 to 23 μsec/point; 5.5 to 6.3 ms for 201-point sweep
Thermal Stability: < 0.03 dB/°C
– Key Features
• Available in 2-port and 4-port configurations with optional dual-source architecture
• Configurable test sets with reference mixer switching
• Optional source and receiver attenuators for extended dynamic range control
• Integrated bias-tees for active device characterization
• Low receiver noise floor and high receiver compression level
– Configuration Options
The N5225B is offered with multiple option packages: 2-port base (Option 200), 2-port with test set and switching (Option 201), 2-port metrology (Option 210), and enhanced variants adding attenuators (Option 217), bias-tees (Option 219), or full capability including low-frequency extension (Option 220). Four-port configurations (Option 400–420) add second-source capability with equivalent enhancement options.
– Typical Applications
• Active and passive microwave component characterization
• Production and acceptance testing
• On-site installation verification
• Research and development in RF and microwave circuits
