Overview
The Keysight U9391G Comb Generator was developed to provide precision phase calibration, for non-linear measurements using the PNA-X nonlinear vector network analyzer (NVNA), referenced to the NIST standard. Additionally, the comb generators can be used to calibrate PNA and PNA-X network analyzers for phase and delay measurements of frequency converters without requiring reference or calibration mixers.
Comb generators generate frequency harmonics at integer multiples from an RF input signal. Generally, comb generators available in the open market today are made with step-recovery diodes. The U9391G comb generators are based on Keysight InP MMIC technology to ensure superior phase stability of the combs. A built-in frequency divider, selectable via the PNA-X, reduces the noise of the combs. You can set drive frequency at N times depends on models the pulse repetition frequency (PRF). Combining a frequency divider with a wide input signal frequency range allows for a broad range of possible harmonics spacing, making this suitable for characterizing non-linear devices. This module has a trigger output which enables synchronization with the pulse's repetition frequency. Calibration data stored inside the U9391G can be accessed directly by the PNA-X via the USB interface for phase calibration. The comb generator comes with the option of female or male output connectors.
The U9391G Comb Generator offers you a selectable USB controlled frequency divider which allows for broad range of input signal frequencies from 10 MHz to 67 GHz and small minimum tone spacing of 10 MHz. The input power and fundamental frequency have lower sensitivity than other comb generators. So you can calibrate the comb generator at a single input power level and frequency and then successfully apply the calibration across a wide range of input powers and fundamental frequencies.
Features
- Excellent amplitude and phase flatness enable it to be used a precision calibration phase standard for PNA, PNA-X, NVNA.
- NIST reference phase calibration guarantees a reliable reference to international standards.
- Embedded calibration data can be easily accessed via the plug-and-play USB interface.
- The USB interface facilitates frequency divider control and calibration data retrieval via the PNA-X.
- Rugged 1.00 mm, 1.85-mm, 2.4-mm, and 3.5-mm bulk-head connectors guarantee high repeatability throughout multiple connects and disconnects.
Applications
- NVNA non-linear measurements. Two units are required, one for the phase reference module and the second for the phase calibration module.
- SMC + Phase - The scalar mixer/converter plus phase measurement class (via PNA / PNA-X network analyzers) provides fully calibrated conversion gain/loss, relative phase, and absolute group delay measurements.
- Wideband Calibration - When used in conjunction with Keysight's Signal Optimizer Software (K3101A), the U9391G enables wideband calibration of signal analyzers and oscilloscopes.
- Drive power supply - The U9391G can be powered by DC power supply via the banana plug cable provided.
keysight U9391G Comb Generator 10 MHz - 67 GHz is in stock and available for same-day shipping on rentals. The EMC Shop is an ISO 17025 accredited calibration lab. Calibrations are available upon request (allow 1-2 additional days).
