CPC H03F 1/0288 (2013.01) [H03F 1/42 (2013.01); H03F 3/211 (2013.01); H03F 1/565 (2013.01); H03F 2200/222 (2013.01); H03F 2200/36 (2013.01); H03F 2200/451 (2013.01)] | 27 Claims |
1. A power amplifier comprising:
a main amplifier coupled to a first combining node;
a first impedance inverter between the main amplifier and the first combining node;
a first peaking amplifier directly connected to the first combining node;
a second impedance inverter between the first combining node and a second combining node;
a second peaking amplifier coupled to the second combining node; and
a third impedance inverter between the second peaking amplifier and the second combining node, wherein:
the main amplifier outputs an amount of maximum power or current that differs by at least 20% from an amount of maximum power or current output by the first peaking amplifier and outputs the amount of maximum power or current that differs by at least 20% from an amount of maximum power or current output by the second peaking amplifier.
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