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Maximizing power amplifier (PA) linearity, while maintaining efficiency, requires development of a digital predistortion (DPD) model. To provide optimal performance, the DPD technique needs wideband, calibrated vector signal generation and signal analysis.
Engineers use a vector signal generator and a vector network analyzer (VNA) with software-enabled wideband vector signal analysis capabilities to optimize PA efficiency and linearity on a single testbed. The VNA's multi-receiver architecture provides fully-calibrated signal generation at the PA input.
Additional resources for power amplifier efficiency and linearity
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