US 11,677,367 B2
Power amplifier circuit
Yuri Honda, Kyoto (JP); Satoshi Goto, Kyoto (JP); and Fumio Harima, Kyoto (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto (JP)
Filed on Oct. 28, 2021, as Appl. No. 17/452,669.
Application 17/452,669 is a continuation of application No. 16/898,907, filed on Jun. 11, 2020, granted, now 11,190,154.
Claims priority of application No. JP2019-111340 (JP), filed on Jun. 14, 2019; and application No. JP2020-024386 (JP), filed on Feb. 17, 2020.
Prior Publication US 2022/0052658 A1, Feb. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H03F 1/07 (2006.01); H03F 3/24 (2006.01); H03F 3/195 (2006.01); H03F 1/56 (2006.01)
CPC H03F 3/245 (2013.01) [H03F 1/565 (2013.01); H03F 3/195 (2013.01); H03F 2200/378 (2013.01); H03F 2200/423 (2013.01); H03F 2200/451 (2013.01); H03F 2200/537 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A power amplifier circuit comprising:
a power splitter configured to receive an input signal through an input terminal, and to output a first signal and a second signal, the first signal and second signal having different phases;
a first amplifier having a first input terminal and a first output terminal, and configured to output a first amplified signal from the first output terminal, the first amplified signal being obtained by amplifying the first signal input;
a second amplifier having a second input terminal and a second output terminal, and configured to output a second amplified signal from the second output terminal, the second amplified signal being obtained by amplifying the second signal;
a first termination circuit comprising a capacitor connected between the first output terminal and the second output terminal;
a first transmission line having a first end connected to the first output terminal;
a second transmission line having a first end connected to the second output terminal;
a second termination circuit comprising a capacitor that is connected between a second end of the first transmission line and a second end of the second transmission line; and
a power combiner connected to the second end of the first transmission line and to the second end of the second transmission line, and configured to output an output signal obtained by combining the first amplified signal and the second amplified signal.