Simplified power amplifier (PA) characterization including envelope tracking and digital predistortion has been demonstrated by Rohde & Schwarz at the GSMA Mobile World Congress 2015 in Barcelona. The test solution is based on the R&S®SMW200A vector signal generator and the R&S®FSW signal and spectrum analyser. The R&S®SMW200A provides realtime RF and envelope signal generation plus digital predistortion in one instrument and the R&S®FSW enables full PA characterization, including EVM, gain and distortion measurements.

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