Power Amplifiers EVM Testing Impairments

This paper interprets the impairments affecting design validation, characterization and testing of power amplifiers (PA). With the EVM contribution of the PA limited for 802.11ax to at most -46 dB, greater linearity and dynamic range requirements are needed for the PA and the RF test equipment. The zSeries-PA/FEM test equipment and zSignal software provide a complete solution for qualifying PA performance for operation within an 802.11ax transmitter design.

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