The Keysight (Agilent) U9391F Comb Generator generates harmonically related frequencies across 10 MHz to 50 GHz, serving as a precision phase reference standard for non-linear measurements and calibration in microwave and millimeter-wave systems. Built on InP MMIC technology, it delivers superior phase stability and excellent amplitude and phase flatness for demanding calibration tasks. The instrument calibrates network analyzers including PNA-X and PNA series for phase and delay measurements of frequency converters, eliminating the need for separate reference or calibration mixers.
Technical Specifications
RF Performance
• Output Frequency Range: 10 MHz to 50 GHz
• Input Frequency Range: 10 MHz to 6 GHz
• Input Power Range: −15 dBm to +15 dBm
• Minimum Tone Spacing: 10 MHz
• Amplitude Flatness: Excellent, enabling precision calibration
• Phase Flatness: Excellent, enabling precision calibration
Frequency Control
• User-selectable Divide Ratios: 1, 2, 4, 8, or 16
• USB-controlled frequency divider accommodates broad input signal frequency range
Interfaces
• USB: Plug-and-play frequency divider control and calibration data retrieval
• Trigger Output: Synchronizes with pulse repetition frequency
• Embedded Calibration Data: NIST-traceable, accessible via USB
Power & Physical
• Power Supply: +15 Vdc ± 10%
• Current Consumption: 300 mA nominal
• Weight: 0.370 kg
• Connectors: 1.85 mm, 2.4 mm, and 3.5 mm bulkhead (Female or Male options)
Environmental
• Operating Temperature: 0 °C to +40 °C
• Storage Temperature: −40 °C to +70 °C
• Humidity (Operating): 50% to 95% RH at 40 °C
• Humidity (Storage): 90% RH at 65 °C
• Operating Altitude: < 4,572 meters
• Operating Vibration: 5 to 500 Hz, 0.21 grms random
– Key Features
• Superior phase stability via InP MMIC technology
• NIST-traceable calibration data embedded in instrument
• Rugged 1.85/2.4/3.5 mm connectors for high repeatability
• USB control eliminates external frequency divider dependencies
– Typical Applications
• 5G wideband calibration
• Network analyzer phase and delay characterization
• Frequency converter calibration
• Research and development in microwave/millimeter-wave systems
– Compatibility & Integration
Calibrates Keysight PNA-X and PNA series network analyzers. NIST-traceable calibration data integrates directly with measurement systems via USB interface.
