The Agilent/Keysight U2031B is a USB power sensor that delivers accurate RF power measurements across 9 kHz to 24 GHz without requiring a separate power meter. Direct USB connectivity to PCs and compatible instruments enables plug-and-play operation, while the compact U2000 Series design combines cost-effectiveness with engineering-grade performance.
Technical Specifications
Frequency Range: 9 kHz to 24 GHz
Power Measurement Range: Up to +44 dBm with dynamic range capability of 80–96 dB depending on configuration. The dual-sensor diode pair topology maintains diodes in the square-law region for accurate average power measurement across complex modulation formats.
Measurement Accuracy: ≤1.9% uncertainty (U2000 Series), excluding power-level dependent terms. Accuracy depends on frequency, power level, and calibration interval.
Measurement Modes: Average Only Mode (default, optimized for wide dynamic range with external TTL trigger control) and Normal Mode (time-gated average power measurements with reduced dynamic range).
Reading Speed: Up to 250 readings per second in buffered mode.
RF Connector: N-type male, 50 Ω
Power Supply: USB-powered; typical current draw 170 mA
– Key Features
• USB 2.0 Type A to 5-pin Mini-B connectivity eliminates external power supply requirements
• Low current consumption (≈170 mA) supports multiple sensors on single PC connection
• Dual-sensor architecture ensures measurement linearity across full dynamic range
• TTL trigger control for synchronized, time-gated measurements
– Typical Applications
• Broadband RF power validation from microwave through millimeter-wave frequencies
• Production test and characterization of complex modulation signals
• Lab and field power measurement without dedicated instrumentation
– Compatibility & Integration
Integrates with Keysight BenchVue software (v3.0+) for data logging and visualization. SCPI command support enables integration into automated test systems. Standard 3 m USB 2.0 cable supplied; optional 1.5 m and 5.0 m lengths available.
