| 摘要 |
A power amplifier circuit (50) includes an unequal power splitter (52) that splits an input signal using an unequal power split and provides a first power level signal and a second power level signal. A first amplifier path includes a first transistor amplifier (53A) that amplifies the first power level signal, and a second amplifier path includes a second transistor amplifier (53B) that amplifies the second power level signal. The second transistor amplifier is configured to turn on at a different power level of the input signal than the first transistor amplifier. An unequal combiner (57) combines the amplified first power level signal and the amplified second power level signal.
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