公开(公告)号：US20230018236A1

公开(公告)日：2023-01-19

申请号：US17811923

申请日：2022-07-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kazuhiro IKARASHI ,  Katsuya IKEGAMI

IPC: H03F3/24 ,  H04B1/40 ,  H03F1/56

Abstract: A transmission/reception module includes a substrate including a transmission signal input terminal, a reception signal output terminal, and an antenna terminal, an antenna switch circuit provided on the substrate and configured to output a transmission signal input from the transmission signal input terminal to the antenna terminal and configured to output a reception signal input from the antenna terminal to the reception signal output terminal, and a first inductor included in an input/output filter circuit provided between the antenna switch circuit and the antenna terminal. The first inductor includes a conductor whose winding axis direction is orthogonal to the substrate.

公开(公告)号：US20210367622A1

公开(公告)日：2021-11-25

申请号：US17396909

申请日：2021-08-09

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Katsuya IKEGAMI

IPC: H04B1/00 ,  H05K1/18 ,  H03H7/01

Abstract: A radio frequency module (1) includes a first switch (4), an attenuation filter (3), and a plurality of band pass filters (12A to 12C, 22A to 22C). The first switch (4) is a switch that is capable of simultaneously connecting a common terminal (40) to selection terminals (41, 42) out of a plurality of selection terminals (41 to 43). The plurality of band pass filters (12A to 12C, 22A to 22C) include a first band pass filter (22A) and a second band pass filter (22B). The attenuation filter (3) includes at least one reactive element out of an inductive element and a capacitive element. In the radio frequency module (1), the reactive element is adjacent to at least one band pass filter out of the plurality of band pass filters (12A to 12C, 22A to 22C).

公开(公告)号：US20230370040A1

公开(公告)日：2023-11-16

申请号：US18361313

申请日：2023-07-28

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Katsuya IKEGAMI ,  Wataru TAKAHASHI

IPC: H03H7/25 ,  H03H19/00

CPC classification number: H03H7/25 ,  H03H19/004 ,  H03H2007/386

Abstract: A variable circuit includes a switch including a plurality of input terminals and a plurality of output terminals and an external wiring line. The multiple input terminals include a first input terminal to which a first input signal is inputted and a second input terminal to which a second input signal is inputted. The multiple output terminals include a first output terminal from which a first output signal is outputted and a second output terminal from which a second output signal is outputted. The switch is capable of forming at least one internal connection path electrically connecting any one of the multiple input terminals and any one of the multiple output terminals. The external wiring line is disposed outside the switch and is configured to electrically connect the second output terminal to the second input terminal.

公开(公告)号：US20230017554A1

公开(公告)日：2023-01-19

申请号：US17812473

申请日：2022-07-14

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Katsuya IKEGAMI ,  Kazuhiro IKARASHI

IPC: H04L5/14

Abstract: A transmission and reception module includes a substrate including a transmission signal input terminal, a reception signal output terminal, and an antenna terminal, a duplexer that is provided on the substrate, outputs a transmission signal input from the transmission signal input terminal to the antenna terminal, and outputs a reception signal input from the antenna terminal to the reception signal output terminal, a first inductor included in a first matching circuit provided between the duplexer and the antenna terminal, and a second inductor included in a second matching circuit provided between the duplexer and the reception signal output terminal. On the substrate, a winding axis direction of a conductor of the first inductor and a winding axis direction of a conductor of the second inductor are different from each other.

公开(公告)号：US20220352859A1

公开(公告)日：2022-11-03

申请号：US17660929

申请日：2022-04-27

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Katsuya IKEGAMI ,  Kazuhiro IKARASHI

IPC: H03F3/72 ,  H04B1/18 ,  H04B1/00 ,  H03F3/24

Abstract: An output switch includes; a plurality of input terminals and output terminals each of the plurality of input terminals is electrically connected to at least one of the plurality of output terminals; a first low noise amplifier that amplifies a signal of a predetermined frequency band input through an antenna and outputs a first signal to a first input terminal among the plurality of input terminals, and a second low noise amplifier that amplifies a signal of a predetermined frequency band input through an antenna and outputs a second signal to a second input terminal different from the first input terminal among the plurality of input terminals. A filter that attenuates a signal of a frequency band higher than a frequency band of the second signal is electrically connected between the second input terminal and the second low noise amplifier.