The MIPI RFFE standard provides a common approach to controlling power amplifiers, low-noise amplifiers, filters, switches, power management modules, antenna tuners and sensors in SoCs and systems.
Current techniques for modelling RF power amplifiers don't provide the dynamic range necessary to simulate their performance properly when used in the energy-saving envelope-tracking mode necessary to give LTE terminals a decent battery life.
‘Envelope tracking’ is not a new technique; it has been known about for more than 50 years. But it could greatly help the power consumption challenges once more facing mobile handset design.
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