Rohde & Schwarz ZNB/ZNC network analyser range

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The ZNB and ZNC from Rohde & Schwarz inaugurate the latest generation of vector network analysers that feature a dynamic range up to 140 dB, a sweep time of 4 ms with 401 points and good stability.

They are designed for demanding applications in the production and development of RF components, particularly in the mobile radio and electronic goods industries. The analysers cover the frequency ranges from 9 kHz to 3 GHz, 4.5 or 8.5 GHz.

Both models have large touch screens that allow users to access all instruments functions with no more than three operating steps.

The ZNB, the more powerful of the two instruments, provides performance characteristics previously found only in high-end analysers. It covers the frequency range from 9 kHz to 4.5 or 8.5 GHz and is available both in 2-port and 4-port models.

Its 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. The magnitude and phase drift are low, resulting in good temperature and long-term stability.

The analyser 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 required. The instrument can also be used to characterise duplex filters, multiport DUTs, mixers or differential SAW filters for transmitters or mobile terminals.

The ZNC with a frequency range from 9 kHz to 3 GHz is an alternative for users who do not have such high requirements regarding dynamic range and functional scope. The analyser is available with two test ports and offers a sweep time of 11 ms with 401 points and a dynamic range of up to 130 dB. Its primary use is for testing passive RF components such as filters or cables.

The large touch screen makes configuring, measuring and analysing easy. Instead of using submenus or nested menus, all context-based control elements are directly available on the soft panel. As a result, all instrument functions are accessible in three operating steps or fewer.

The ZNC (two test ports, up to 3 GHz) and the ZNB (two test ports, up to 4.5 GHz and 8.5 GHz) are now available. From September, the two ZNB models will be available with four ports.