Test & Measurement

Spectrum analysers aid 5G test, speed time to market

11th April 2019
Mick Elliott

Manufacturers of RF components, transmitters and modules are facing complex measurement tasks on wideband RF signals and tight time-to-market requirements, says Rohde & Schwarz. With the advances of 5G NR technology, engineers need to analyze wireless communications signals in R&D and production with test solutions supporting 5G bandwidth and RF requirements.

Rohde & Schwarz is now addressing these users with the launch of two midrange signal and spectrum analysers, the R&S FSV3000 and R&S FSVA3000.

The families offer different frequency models covering up to 44GHz.

The R&S FSV3000 is designed to help users set up complex measurements in the simplest and fastest way possible. With its easy usability and high measurement speed, it is the right instrument for labs and production lines.

It provides up to 200MHz analysis bandwidth – enough to capture and analyse, for example, two 5G NR carriers at once.

The R&S FSVA3000, with up to 400MHz analysis bandwidth, a high dynamic range and an outstanding phase noise of –120dBc/Hz, delivers performance that was, until recently, reserved for high-end instruments.

It enables users to perform highly demanding measurement applications such as linearising power amplifiers, capturing short events and characterising frequency agile signals.

Both the R&S FSV3000 and R&S FSVA3000 can measure EVM values better than 1% for a 10 MHz signal at 28GHz. Together with the coverage of the 5G NR frequency bands up to 44GHz, this makes the analysers ideal for analysing 5G NR signals.

The spectrum analysers simplify troubleshooting rare events and setting up complex measurements.

With the event-based action GUI, whenever a predetermined event occurs the corresponding action, such as saving a screenshot or I/Q data, is performed.

Auto‑measurements shorten the setup time of the instrument itself. At the press of a button, parameters such as centre frequency, span and amplitude reference are automatically set based on the applied signal, and in the case of a pulse signal, the gate sweep parameters are set.

For standard-compliant measurements such as ACLR or SEM, the auto‑measurement feature selects the corresponding standard parameter table.

In scenarios with automated production lines with complex measurements, external computers can take over the control of the instruments via SCPI commands.

Furthermore, the embedded SCPI recorder makes it much easier to create executable scripts, since all manual input is translated into plain SCPI or into the syntax of common programming languages or tools such as C++, Python or MATLAB.

A smart signal generator control that assists in RF measurement setups contains a signal generator from Rohde & Schwarz.

Changes in the analyser settings are directly taken over by the generator, and the analyser can even display the user interface of the generator so that users can operate the complete setup from one screen. SCPI recording functions of the analyser and the generator can be coupled.

The R&S FSV3000 and R&S FSVA3000 are designed for high-speed performance in automated test systems. Both perfectly interact with cloud based processing.

The optional 10Gbit/s LAN interface enables I/Q data transfer toward the network end even at high sample rates, which is required for wideband signal analysis such as for 5G.

The R&S FSV3000 and R&S FSVA3000 are now available from Rohde & Schwarz.

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