Reduced bandwith of signal in an envelope path for envelope tracking system
AssigneeSnapTrack, Inc.
InventorGerard Wimpenny
Life of this patent
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Abstract
An envelope tracking power amplifier system comprising an RF input path and an envelope path for providing a modulated power amplifier supply, further comprising a plurality of envelope detectors for detecting the envelope of a plurality of frequency bands of an input signal and each generating an output signal, and a combiner for combining the output of the envelope detectors.
Claims20
An envelope tracking power amplifier system comprising an RF path and an envelope path, the envelope path comprising:
- a plurality of envelope detectors for detecting the envelope of a plurality of frequency bands of an input signal and each generating an output signal;
- and
- a combiner for combining the output of the envelope detectors.
A method for signal amplification via an envelope tracking power amplifier system comprising an RF path and an envelope path, the method comprising:
- detecting the envelope of a plurality of contiguous frequency bands of an input signal in a plurality of envelope detectors, each generating an output signal;
- and
- combining the output of the envelope detectors.
A method for signal amplification via an envelope tracking power amplifier system comprising an RF input path and an envelope path for providing a modulated power amplifier supply, the method comprising:
- detecting the envelope of a plurality of frequency bands of an input signal in a plurality of envelope detectors, each generating an output signal;
- and
- combining the output of the envelope detectors to provide a composite envelope signal.
Dependencies are inferred from the claim text.