Industrial Electronics

New R&S SMW200A and R&S SMM100A vector signal generators feature significantly improved EVM performance

23 January 2025

Rohde & Schwarz has introduced the latest evolution of its two vector signal generators, the signature R&S SMW200A for the most demanding applications, and its midrange counterpart, the best-in-class R&S SMM100A. Besides a redesigned front panel and user interface, the R&S SMW200A has been equipped with modified microwave hardware for enhanced error vector magnitude (EVM) performance as well as higher output power in the frequency range above 20 GHz. This addresses the demands of 5G NR FR2 research and radio frequency (RF) component and module testing.

This upgrade comes with an RF linearization software option R&S SMW-K575, which utilizes digital pre distortion technology to optimize EVM at high output power. This ensures high accuracy and stability, even for complex modulation schemes in the entire frequency range.

With its improved EVM performance, the evolved R&S SMW200A is ideal for high demand RF applications. Source: Rohde & SchwarzWith its improved EVM performance, the evolved R&S SMW200A is ideal for high demand RF applications. Source: Rohde & Schwarz

These key upgrades also extend to the R&S SMM100A, the midrange counterpart of the R&S SMW200A. The R&S SMM100A also comes with a new low phase noise option, R&S SMM B709. With this option, the R&S SMM100A can provide, for example, an EVM performance better than -53 dB for an IEEE802.11be signal with a bandwidth of 320 MHz.

Customers with previous models of the R&S SMW200A or R&S SMM100A can also benefit from the new performance enhancements offered by R&S SMx-K575 RF linearization: Rohde & Schwarz offers retrofit options through a simple service and calibration process.

Gerald Tietscher, vice president of signal generators, power supplies and meters at Rohde & Schwarz, said: “With increasing data rates and modulation scheme complexity, achieving low EVM is critical for ensuring stability and robustness in wireless connectivity applications. The latest evolution of our R&S SMW200A and R&S SMM100A vector signal generators is a testament to our commitment to making our art of signal generation even better. With their superior RF characteristics and exceptional EVM performance, these instruments are a pivotal resource for handling the requirements of the most advanced test applications.”

To contact the author of this article, email GlobalSpecEditors@globalspec.com


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