Scope option enables wideband modulated load pull
R&S offers a load pull test setup with wideband modulated signals using the RTP oscilloscope for non-linear device characterization. Compared to conventional vector network analyzers, this setup enables wideband modulation characterization of RF frontends across varying impedances. It allows precise validation of key performance indicators, such as error vector magnitude and adjacent channel leakage ratio, to support the development of RF components for next-generation wireless technologies.
Designed to verify power amplifier performance when connected to an antenna with dispersive impedance, the setup is based on the RTP084 oscilloscope with the wideband modulated load-pull option RTP-K98, paired with the SMW200A vector signal generator. The oscilloscope’s internal architecture ensures precise phase and time synchronization for forward and reverse wave measurements. Meanwhile, the dual-path vector signal generator provides accurate timing and phase stability between the input and tuning signal for load pull operation.
The RTP-K98 software processes the oscilloscope’s measured data, performs the necessary calculations to achieve the target impedance, and controls the signal generator. It is well-suited for verifying the performance of RF frontends, typically used across wider frequency ranges and multiple transmission bands, such as 5G or Wi-Fi.
Option RTP-K98 is available now. For more information on load pull testing, click here.
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