Patent ID: 11929721
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power amplifier module comprising:
a first amplifier configured to amplify a first signal, and to output a second signal;
a power splitter configured to split the second signal into a third signal and a fourth signal;
a second amplifier configured to amplify the third signal, and to output a fifth signal;
a third amplifier configured to amplify the fourth signal, and to output a sixth signal;
a phase shifter configured to receive the fifth signal, and to shift a phase of the fifth signal;
a combining circuit configured to combine the fifth signal phase-shifted by the phase shifter and the sixth signal, and to output an amplified signal of the second signal; and
a controller configured to output, based on an amplitude level of the first signal, a first control signal that controls a power level of the sixth signal output from the third amplifier,
wherein the first control signal is controlled based on a signal whose value is 0 or 1 and the signal is in response to the amplitude level of the first signal.