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

Claim 7:
8. 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;
a signal adjustment circuit that is between the power splitter and the third amplifier, and that is configured to control a passing of the fourth signal through the signal adjustment circuit; and
an output circuit configured to output, based on a base current of the second amplifier, a second control signal to the signal adjustment circuit, the second control signal controlling the signal adjustment circuit,
wherein the signal adjustment circuit is configured to control the passing of the fourth signal based on the second control signal.