Rohde & Schwarz adds frequency converter measurements to ZNB vector network analyzers

The R&S ZNB-K4 software option for the Rohde & Schwarz R&S ZNB series of vector network analyzers (VNAs) extends the instruments capability by mixer and frequency converter measurements. It includes a graphical wizard for setup and execution of complex measurements. The VNAs feature the R&S SMARTer Cal calibration technique which combines vector-error-corrected calibration with power calibration for improved accuracy, and therefore can also correct errors caused by test port mismatch.

The graphical wizard guides users through setup and calibration procedures. With the wizard, users can configure RF, IF and LO (local oscillator) frequencies and power levels, as well as the source for the LO signal. The graphical display gives an immediate overview of current settings. The R&S ZNB‑K4 also supports sophisticated applications such as measurements on harmonic mixers, converters with multiple mixer stages, and frequency multipliers.
When the R&S ZNB is equipped with a second generator it provides the LO signal for a mixer. If the application requires more sources, the R&S ZNB can also control multiple external generators.

Key specifications:

• frequency ranges from 9 kHz to 4.5 GHz or 8.5 GHz
• two-port and four-port models
• dynamic range up to 140 dB
• sweep time of 4 ms with 401 points
• Trace noise is 0.004 dB RMS
• output power is up to +13 dBm adjustable in a range of –85 dBm to +13 dBm
• 12.1-inch touchscreen

Also comes with the ZND-K14 intermodulation measurement option.

More information: Product web page