We present an approach for the dynamic characterization of the non-idealities arising in envelope tracking (ET) systems when either the radio-frequency (RF) power amplifier (PA) or the supply modulator (SM) are driven into nonlinear operation. Impedance-like nonlinear functions, derived through a modified Volterra formulation, are here introduced and measured at the supply terminal over 40 MHz bandwidth (BW), allowing better predictions of the dynamic voltage and current at the SM-PA interface.
Gibiino, G.P., Couvidat, J., Avolio, G., Schreurs, D., Santarelli, A. (2016). Supply-terminal 40 MHz BW characterization of impedance-like nonlinear functions for envelope tracking PAs. Institute of Electrical and Electronics Engineers Inc. [10.1109/ARFTG.2016.7501958].
Supply-terminal 40 MHz BW characterization of impedance-like nonlinear functions for envelope tracking PAs
GIBIINO, GIAN PIERO;SANTARELLI, ALBERTO
2016
Abstract
We present an approach for the dynamic characterization of the non-idealities arising in envelope tracking (ET) systems when either the radio-frequency (RF) power amplifier (PA) or the supply modulator (SM) are driven into nonlinear operation. Impedance-like nonlinear functions, derived through a modified Volterra formulation, are here introduced and measured at the supply terminal over 40 MHz bandwidth (BW), allowing better predictions of the dynamic voltage and current at the SM-PA interface.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
