Resources

Envelope Tracking

Presented by Gerard Wimpenny, Qualcomm Technologies International at Power Amplifier Techniques Workshop

This talk will introduce Envelope Tracking as a PA efficiency enhancement technique and will cover the advantages and challenges of ET compared with fixed supply, Average Power Tracking (APT) and Envelope Elimination and Restoration (EER) PAs. It will go on to consider 3 port ‘surface’ characterization of ET PAs and the influence of the choice of envelope shaping function on PA efficiency and system linearity.

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