公开(公告)号：US20140128010A1

公开(公告)日：2014-05-08

申请号：US14013312

申请日：2013-08-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryangsu KIM

IPC: H04B1/40

CPC classification number: H04B1/18 ,  G06F13/20 ,  G06F13/4022 ,  H04B1/005 ,  H04B1/0458 ,  H04B1/406 ,  H04L12/40

Abstract: A front end device includes an upper-level device and a lower-level device. The upper-level device includes an S/P interface unit. The lower-level device includes a parallel interface unit and a high-frequency processor. The S/P interface unit is connected to an RFIC and the parallel interface unit, receives a serial signal from the RFIC, converts the serial signal into a parallel signal, and transmits the parallel signal to the parallel interface unit. The parallel interface unit receives the parallel signal and supplies the parallel signal to the high-frequency processor. The high-frequency processor is connected between the RFIC and an antenna and performs certain processing on a high-frequency signal based on the parallel signal.

Abstract translation: 前端装置包括上级装置和下级装置。 上级设备包括S / P接口单元。 下层设备包括并行接口单元和高频处理器。 S / P接口单元连接到RFIC和并行接口单元，从RFIC接收串行信号，将串行信号转换为并行信号，并将并行信号发送到并行接口单元。 并行接口单元接收并行信号并将并行信号提供给高频处理器。 高频处理器连接在RFIC和天线之间，并根据并行信号对高频信号进行一定的处理。

公开(公告)号：US20240347890A1

公开(公告)日：2024-10-17

申请号：US18754898

申请日：2024-06-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenta SEKI ,  Ryangsu KIM ,  Kazuhito OSAWA

IPC: H01P5/18 ,  H01Q5/50

CPC classification number: H01P5/188 ,  H01Q5/50

Abstract: Degrees of a change in an insertion loss of a main line and a change in a phase of a signal are small regardless of whether or not detection is performed by using a sub-line. A directional coupler includes a main line, a sub-line, a first termination circuit, a second termination circuit, and a switch. The sub-line has a first end and a second end. The first termination circuit terminates the first end and the second end of the sub-line. The switch switches connection and disconnection between the sub-line and the first termination circuit.

公开(公告)号：US20200335846A1

公开(公告)日：2020-10-22

申请号：US16850655

申请日：2020-04-16

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryangsu KIM

IPC: H01P5/18 ,  H01P1/24 ,  H01P1/22 ,  H01P1/20

Abstract: A dielectric having a first main surface and a second main surface facing each other, a main line provided on a side of the first main surface in contact with the dielectric, and a sub line provided on the side of the first main surface in contact with the dielectric are included, the dielectric has a first portion in contact with the main line and a second portion in contact with the sub line, and when the first main surface is viewed in a plan view, between the first portion and the second portion, a third portion having a relative dielectric constant changing along a direction intersecting with the main line and the sub line is located.

公开(公告)号：US20200021003A1

公开(公告)日：2020-01-16

申请号：US16578740

申请日：2019-09-23

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryangsu KIM ,  Katsuya SHIMIZU ,  Yasushi SHIGENO ,  Daisuke TOKUDA ,  Mikiko FUKASAWA

IPC: H01P5/04 ,  H01R13/66

Abstract: Bidirectional detection is performed with a suppressed increase in return loss at an output terminal. A bidirectional coupler includes a detection port, a main line connected to a first port and a second port, a sub-line, a termination circuit, a switch circuit that switches each of one end and another end of the sub-line to the termination circuit or the detection port, and a matching network disposed between the switch circuit and the detection port and including at least one of a first variable capacitor, a first variable inductor, or a first variable resistor. In a first mode for detecting a first signal, the switch circuit connects the one end of the sub-line to the detection port, and connects the other end of the sub-line to the termination circuit.

公开(公告)号：US20180062672A1

公开(公告)日：2018-03-01

申请号：US15688980

申请日：2017-08-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryangsu KIM

IPC: H04B1/04 ,  H01P5/18 ,  H01P5/04

Abstract: A bidirectional coupler includes the following elements. A main line and a sub-line are electromagnetically coupled. First and second resistors are each grounded at one end. First and second switches connect the sub-line to the first and second resistors or a third port. A third resistor is disposed between one end of the sub-line and the first switch or between the other end of the sub-line and the second switch. When detecting an input signal, the first switch electrically connects one end of the sub-line to the other end of the first resistor and the second switch electrically connects the other end of the sub-line to the third port. When detecting a reflected signal, the first switch electrically connects one end of the sub-line to the third port and the second switch electrically connects the other end of the sub-line to the other end of the second resistor.

公开(公告)号：US20150303152A1

公开(公告)日：2015-10-22

申请号：US14659664

申请日：2015-03-17

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masamichi TOKUDA ,  Ryangsu KIM ,  Naru MORITO

IPC: H01L23/552 ,  H01L23/00 ,  H01L23/498 ,  H01L23/31

CPC classification number: H01L23/552 ,  H01L21/568 ,  H01L23/3107 ,  H01L23/3135 ,  H01L23/49506 ,  H01L23/49541 ,  H01L23/49822 ,  H01L23/49838 ,  H01L24/48 ,  H01L2224/05599 ,  H01L2224/29139 ,  H01L2224/32245 ,  H01L2224/48177 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/73265 ,  H01L2224/85005 ,  H01L2224/85399 ,  H01L2924/00014 ,  H01L2924/181 ,  H01L2924/18165 ,  H01L2224/45015 ,  H01L2924/207 ,  H01L2924/00012 ,  H01L2224/45099 ,  H01L2924/00

Abstract: A semiconductor package includes the following elements. A high-output switch IC includes an IC top surface on which an electrode is disposed and an IC bottom surface on which no electrode is disposed. A connecting terminal is formed at a position outside a projection region toward a side portion of the semiconductor package. The projection region is a region projected in a thickness direction of the high-output switch IC. A wire electrically connects the electrode and the connecting terminal. A mold resin section covers the IC top surface and the wire and also covers a surface of the connecting terminal to which the wire is connected. A surface of the connecting terminal opposite to the surface to which the wire is connected is not covered with the mold resin section but is exposed. The IC bottom surface is not covered with a metal.

Abstract translation: 半导体封装包括以下元件。 高输出开关IC包括其上设置有电极的IC顶表面和没有设置电极的IC底表面。 连接端子形成在朝向半导体封装的侧部的突出区域外侧的位置处。 投影区域是在高输出开关IC的厚度方向上投影的区域。 电线将电极和连接端子电连接。 模具树脂部分覆盖IC顶表面和导线，并且还覆盖连接线的连接端子的表面。 与导线连接的表面相对的连接端子的表面没有被模制树脂部分覆盖，而是被露出。 IC底部表面没有被金属覆盖。

公开(公告)号：US20220077560A1

公开(公告)日：2022-03-10

申请号：US17461099

申请日：2021-08-30

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenta SEKI ,  Ryangsu KIM ,  Kazuhito OSAWA

IPC: H01P5/18

Abstract: A directional coupler includes a multilayer body, a conductor (31), and a conductor (32). The conductor (31) is a conductor that is arranged in an insulating layer (21) of the multilayer body and that extends in a certain shape. The conductor (32) is arranged on a side of an insulating layer (22) of the multilayer body opposite the insulating layer (21). The conductor (32) runs parallel to the conductor (31) and is electromagnetically coupled to the conductor (31). The conductor (32) has a winding shape with one or more rounds, and has a conductor portion (321) and a conductor portion (325) that are arranged adjacent to each other with a spacing in a direction orthogonal to a running parallel direction. In plan view of the multilayer body, the conductor (31) is arranged between the conductor portion (321) and the conductor portion (325).

公开(公告)号：US20210184328A1

公开(公告)日：2021-06-17

申请号：US17186171

申请日：2021-02-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenta SEKI ,  Ryangsu KIM ,  Katsuya SHIMIZU

IPC: H01P5/18 ,  H01P1/10 ,  H03H7/38

Abstract: A directional coupler includes a main line and a sub-line electromagnetically coupled to each other, a variable termination circuit that is connected to one end of the sub-line and that has a variable impedance, a variable matching circuit that is connected to the other end of the sub-line and that has a variable impedance or a variable attenuator that has a variable attenuation, and a control circuit that controls the impedance of the variable termination circuit and that controls the impedance of the variable matching circuit or the attenuation of the variable attenuator. The control circuit includes a non-volatile memory and controls the impedance of the variable termination circuit in accordance with data stored in the memory.

公开(公告)号：US20210036396A1

公开(公告)日：2021-02-04

申请号：US16941862

申请日：2020-07-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenta SEKI ,  Yasushi SHIGENO ,  Daisuke TOKUDA ,  Ryangsu KIM ,  Katsuya SHIMIZU ,  Kazuhito OSAWA

IPC: H01P5/18

Abstract: A directional coupler includes a main line, a first sub-line to be electromagnetically coupled to the main line, a second sub-line to be electromagnetically coupled to the main line, and a coupling terminal configured to output a detection signal corresponding to a radio frequency signal that is transmitted through the main line, the first sub-line and the second sub-line are different in length from each other, and connection between the first sub-line and the coupling terminal and connection between the second sub-line and the coupling terminal are switched.

公开(公告)号：US20210036395A1

公开(公告)日：2021-02-04

申请号：US16941577

申请日：2020-07-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenta SEKI ,  Yasushi SHIGENO ,  Daisuke TOKUDA ,  Ryangsu KIM ,  Katsuya SHIMIZU ,  Kazuhito OSAWA

IPC: H01P5/18 ,  H04B1/04 ,  H01G4/40 ,  H03H7/01

Abstract: A directional coupler includes a main line through which a signal is transmitted, first and second sub-lines that are selectively coupled to the main line, and a common output port that outputs a detection signal generated by the signal transmitted through the main line, wherein a first degree of coupling between the main line and the first sub-line is different than a second degree of coupling between the main line and the second sub-line.