| 摘要 |
A power amplifier includes a main amplifier having a first output. An auxiliary amplifier has a second output coupled to the first output. A splitter splits a RF input into a first input provided to the main amplifier and a second input delayed by one/quarter wavelength provided to the auxiliary amplifier. A bias control is coupled to the auxiliary amplifier for controllably switching operation of the power amplifier between two different modes of operation.
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