公开(公告)号：US11152893B2

公开(公告)日：2021-10-19

申请号：US16589332

申请日：2019-10-01

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takashi Yamada ,  Toshikazu Terashima ,  Yuuki Oomae

IPC: H03F3/191 ,  H03F1/02 ,  H03G3/30 ,  H03F3/21 ,  H03F3/193

Abstract: A power amplifying circuit includes a first amplifying unit that amplifies a first radio-frequency signal and a second amplifying unit that amplifies a second radio-frequency signal. The first amplifying unit includes a first matching circuit that performs impedance matching for a circuit in a preceding stage, and a first amplifying circuit that amplifies the first radio-frequency signal that has passed through the first matching circuit. The second amplifying unit includes a second matching circuit that performs impedance matching for the circuit in the preceding stage, a resistor including a first end and a second end, the first end being electrically connected to the second matching circuit, and a second amplifying circuit that is electrically connected to the second end of the resistor and that amplifies the second radio-frequency signal that has passed through the resistor.