Which design technology will have the biggest impact on improving amplifier efficiency for 4G designs?

Envelope Tracking [64 votes] (35%)
 
Doherty [52 votes] (29%)
 
Asymmetric Multilevel Outphasing [34 votes] (19%)
 
Chireix Outphasing [3 votes] (2%)
 
Some hybrid of the above [29 votes] (16%)
 
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