Rohde and Schwarz ZNB20

Vector Network Analyzer, 4 Ports, 20 GHz
Contact us for pricing and availability.

The Rohde & Schwarz ZNB20 Vector Network Analyzer features a wide dynamic range of up to 140 dB (at 10 Hz IF bandwidth), low trace noise of less than 0.004 dB RMS (at 10 kHz IF bandwidth) and high output power of up to +13 dBm, which can be adjusted electronically in a range of more than 95 dB.The ZNB20 designed for demanding applications in the production and development of RF components, particularly in the mobile radio and electronic goods industries.

The R&S ZNB20 covers a frequency range from 9 kHz to 20 GHz. The R&S ZNB20 has a large touch screen that allows users to access all instrument functions with no more than three operating steps. The screen offers plenty of space for results, displaying even extensive measurements in a clear and straightforward manner.

The R&S ZNB20 provides development labs and production lines with performance characteristics previously found only in the very top-of-the-line analyzers. It is available in both two-port and four-port models. Its wide dynamic range of 140 dB, low trace noise of 0.004 dB (RMS) and high output power of up to +13 dBm, which can be adjusted electronically in a range of 90 dB, provide fast and accurate measurements. This ensures high throughput in production.

The R&S ZNB20 VNA combines high measurement accuracy with exceptional speed – better than 5 µs per point. They feature excellent temperature and long-term stability, which ensures reliable measurements over several days without having to recalibrate the units. The short-depth, compact two-port and four-port versions leave plenty of space on the workbench for the measurement application. It features low operating noise thanks to low power consumption and a sophisticated cooling concept. The low power consumption also reduces operating costs and protects the environment.

It is suitable for measurements on high-blocking filters or amplifiers that must be manually adjusted on high-volume production lines where speed and efficiency are critical. The large touch screen is especially useful in this application. The network analyzer can also be used to characterize duplex filters, multiport DUTs, mixers or differential SAW filters for transmitters or mobile terminals.

Key features and specifications of the R&S ZNB20 include:

  • Frequency range from 9 kHz up to 20 GHz
  • Wide dynamic range of up to 140 dB
  • Short sweep times, e.g. 4 ms for 401 points
  • High temperature stability of typ. 0.01 dB/°C
  • Wide power sweep range of 98 dB
  • Wide range of IF bandwidths from 1 Hz to 10 MHz
  • Manual and automatic calibration
  • Large, high-resolution 12.1" screen
  • Touchscreen user interface
  • Two or four ports
  • Four-port model with two independent generators
  • Expansion to up to 48 ports using switch matrices


List of Options
B10 GPIB interface
B14 Handler I/O for R&S®ZNB, R&S®ZND and R&S®ZNC ''+5V CONTROL-LOGIC
B15 RFFE GPIO Interface additionally (MIPI Interface) including voltage/current measurement (hardware option)
B2 Second internal generator, for R&S®ZNB20 4-port, ex factory or retrofittable at R&S service only (hardware option)
B24 Extended power range down to -60dBm, for R&S®ZNB20 4-port (ex factory/service retrofittable only, hardware option)
B4 Precision oven quartz frequency reference (hardware option)
B81 4 DC inputs, 3 voltage ranges selectable : 100mV, 1V, 10V
K2 Time domain analysis (software license)

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