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Increasing the Maximum Transmit Power Rating of a Power Amplifier Using a Power Combining Technique

From Skyworks Solutions, Inc.

Today's broadband communications use high order modulation transmission scheme that provide higher spectrum
efficiency but with a high crest factor [1,2]. As a result, a linear power amplifier (PA) in the transmit chain operates at
a significantly backed-off power from compression to meet the linearity performance of error vector magnitude (EVM)
and adjacent channel power ratio (ACPR).

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ACE active constellation extension ACI adjacent channel interference ACPR adjacent channel power ratio ADC analog-to-digital converter AM/PM...

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