The R&S®ZNB is Rohde & Schwarz mid-range high-performance vector network analyzer optimized for R&D and mass production test lines, positioned between entry-level ZNL series and flagship ZVA/ZNA series with balanced performance, compact size and cost efficiency. It covers mainstream RF frequency bands of 4.5 GHz / 8.5 GHz / 20 GHz / 26.5 GHz / 40 GHz, offered in 2-port and 4-port hardware variants.

Equipped with RF front-end featuring ultra-wide dynamic range, millisecond ultra-fast sweep speed and ultra-low trace noise, it comes with standard built-in functions including full S-parameter suite, TDR time domain reflectometry and impedance analysis. It integrates dedicated mixer measurement wizard and SMARTerCal multi-port intelligent calibration. The 4-port model supports an optional second internal coherent signal source to enable frequency conversion and intermodulation distortion testing for non-linear DUTs without external signal generators.