公开(公告)号：US20240128932A1

公开(公告)日：2024-04-18

申请号：US18395786

申请日：2023-12-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenji TAHARA ,  Yoshiaki SUKEMORI ,  Kae YAMAMOTO ,  Ryo WAKABAYASHI

IPC: H03F1/02 ,  H03F3/195 ,  H03F3/24 ,  H03F3/72

CPC classification number: H03F1/0222 ,  H03F3/195 ,  H03F3/245 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/423 ,  H03F2200/451 ,  H03F2203/7215

Abstract: A power amplifier circuit includes external input and output terminals; a first power amplifier with first input and output terminals, the first input terminal being connected to the external input terminal, the first output terminal being connected to the external output terminal; a second power amplifier having second input and output terminals, the second input terminal being connected to the external input terminal, the second output terminal being connected to the external output terminal; a power supply terminal that receives a power supply voltage that is supplied to the first power amplifier and controllably supplied to the second power amplifier; and a switch having first and second terminals, the first terminal being connected to the power supply terminal, the second terminal being connected to the second power amplifier.

公开(公告)号：US20230344460A1

公开(公告)日：2023-10-26

申请号：US18342743

申请日：2023-06-28

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masanari MIURA ,  Kiyoshi AIKAWA ,  Hiroyuki NAGAMORI ,  Takanori UEJIMA ,  Yuji TAKEMATSU ,  Takahiro YAMASHITA ,  Ryo WAKABAYASHI ,  Yoshihiro YOSHIMURA ,  Takashi HIROSE

IPC: H04B1/40 ,  H05K1/18 ,  H05K9/00 ,  H01L25/16 ,  H01L23/552

CPC classification number: H04B1/40 ,  H05K1/181 ,  H05K9/0022 ,  H01L25/16 ,  H01L23/552 ,  H05K2201/1006 ,  H05K2201/10015 ,  H05K2201/1003 ,  H05K2201/10053 ,  H05K2201/10371

Abstract: A high-frequency module is capable of two-uplink of a transmission signal in Band A and transmission of Band C, and includes a module substrate, a metal shield plate arranged on a principal surface, power amplifiers, a transmission filter of Band A, and a transmission filter of Band C. In a plan view, the metal shield plate is arranged between a first transmission component and a second transmission component. The first transmission component is one of the power amplifier, the transmission filter, a switch circuit, and a first inductor and a first capacitor arranged in a first transmission path, and the second transmission component is one of the power amplifier, the transmission filter, a switch circuit, and a second inductor and a second capacitor arranged in a second transmission path.