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公开(公告)号：US11309617B2
公开(公告)日：2022-04-19
申请号：US16984708
申请日：2020-08-04
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daisuke Tokuda , Yasushi Shigeno
Abstract: A directional coupler (1) includes a substrate (10), a main line (20) formed directly or indirectly on the substrate (10), sub-lines (21, 22 and 23) at least part of each of which is formed directly or indirectly on the substrate (10) along the main line (20), a switch (30) switching connections among end portions of the plurality of sub-lines (21, 22 and 23), and detection output terminals (FWD and REV) connected to the sub-line (21), wherein, when looking at the substrate (10) in plan, the end portions of the sub-lines (21, 22 and 23) are disposed on the same side as the detection output terminals (FWD and REV) relative to the main line (20), and the sub-line (21) to which the detection output terminals (FWD and REV) are connected is overlapped with or surrounded by the sub-lines (22 and 23).
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公开(公告)号：US10388623B2
公开(公告)日：2019-08-20
申请号：US15954420
申请日：2018-04-16
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Yasunari Umemoto , Daisuke Tokuda , Tsunekazu Saimei , Hiroaki Tokuya
IPC: H01L29/737 , H01L23/00 , H01L29/417 , H01L29/732 , H01L29/08 , H01L29/66 , H01L29/20 , H01L29/205 , H01L29/06
Abstract: A semiconductor device that includes a bipolar transistor, wherein a third opening, through which a pillar bump and a second wiring line, which is electrically connected to an emitter layer, contact each other, is shifted in a longitudinal direction of the emitter layer away from a position at which the third opening would be directly above the emitter layer. The third opening is arranged, with respect to the emitter layer, such that an end portion of the emitter layer in the longitudinal direction of the emitter layer and the edge of the opening of the third opening are substantially aligned with each other.
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公开(公告)号：US08803633B2
公开(公告)日：2014-08-12
申请号：US13891075
申请日：2013-05-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daisuke Tokuda , Kazutaka Mukaiyama
Abstract: In a directional coupler, even when parasitic inductance exists, an increase in device size can be suppressed while obtaining good isolation characteristics. A transmission line type directional coupler includes a main line and a sub line that is coupled to the main line through electric field coupling and magnetic field coupling. The main line includes a signal input port and a signal output port, and the sub line includes a coupling port and an isolation port. A series capacitor is connected to only one of the signal output port and the coupling port.
Abstract translation: 在定向耦合器中，即使存在寄生电感，也可以在获得良好的隔离特性的同时抑制器件尺寸的增加。 传输线型定向耦合器包括通过电场耦合和磁场耦合耦合到主线的主线和子线。 主线包括信号输入端口和信号输出端口，子线路包括耦合端口和隔离端口。 串联电容器仅连接到信号输出端口和耦合端口中的一个。
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公开(公告)号：US20230238678A1
公开(公告)日：2023-07-27
申请号：US18295477
申请日：2023-04-04
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daisuke Tokuda , Ryangsu Kim
IPC: H01P5/18
CPC classification number: H01P5/18
Abstract: A directional coupler includes a conductor serving as a primary line disposed in a multilayer body and conductors serving as a plurality of secondary lines that are disposed in the multilayer body and each of which is capable of being electromagnetically coupled to the conductor serving as the primary line. A facing area where the conductor serving as the secondary line and the conductor serving as the secondary line face each other is smaller than a facing area where the conductor serving as the secondary line and the conductor serving as the primary line face each other. A distance between the conductor serving as the secondary line and the conductor serving as the secondary line is longer than a distance between the conductor serving as the secondary line and the conductor serving as the primary line.
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公开(公告)号：US11456517B2
公开(公告)日：2022-09-27
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.
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Patent Agency Ranking
公开(公告)号：US11245386B2
公开(公告)日：2022-02-08
申请号：US14170248
申请日：2014-01-31
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Daisuke Tokuda
IPC: H03H11/02 , H03H7/01 , H01L23/522 , H04B1/04 , H01L23/64 , H01L23/66 , H04B1/18 , H01L25/16 , H01P1/201 , H01Q1/50 , H03H1/00 , H03H7/46
Abstract: A high-frequency module includes a semiconductor chip device that is mounted on an external circuit substrate by wire bonding. A switch forming section, a power amplifier forming section and a low noise amplifier forming section, realized by a group of FETs, which are active elements, are formed in the semiconductor chip device. Flat plate electrodes, which form capacitors are formed in the semiconductor chip device. Conductor wires that connect the external circuit substrate and the semiconductor chip device function as inductors. A group of passive elements that includes inductors and capacitors is formed. As a result, a high-frequency module that can be reduced in size while still obtaining the required transmission characteristic is realized.
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公开(公告)号：US10964996B2
公开(公告)日：2021-03-30
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
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.
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公开(公告)号：US12051843B2
公开(公告)日：2024-07-30
申请号：US17331080
申请日：2021-05-26
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daisuke Tokuda , Katsuya Shimizu , Kenta Seki , Ryangsu Kim
IPC: H01P5/18
CPC classification number: H01P5/18
Abstract: A directional coupler includes a main line, a sub-line electromagnetically coupled with the main line, a coupled output terminal, plural filters, filter switching circuits, and plural filter protecting switches. Each of the filter switching circuits is able to connect a corresponding one of the plural filters to one end of the sub-line and to the coupled output terminal. Each of the filter protecting switches is directly connected to a corresponding end of a corresponding one of the plural filters and is able to switch between a connection state and a disconnection state. The connection state is a state in which the corresponding end of the corresponding one of the plural filters is connected to a reference potential. The disconnection state is a state in which the corresponding end of the corresponding one of the plural filters is disconnected from the reference potential.
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公开(公告)号：US12051842B2
公开(公告)日：2024-07-30
申请号：US17234973
申请日：2021-04-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daisuke Tokuda
IPC: H01P5/18
Abstract: A directional coupler (10) includes a main line (11), a sub-line (12), and a termination circuit (13) that is connected to one end (121) of the sub-line (12), and further includes an adjustment terminal (ADJ), as a lead-out terminal, that is led out from a node (N) between the one end (121) of the sub-line (12) and the termination circuit (13). The termination circuit (13) may be formed of a circuit in which a capacitance element (131) and a resistance element (132) are connected in parallel with each other, a capacitance value of the capacitance element (131) may be smaller than a capacitance value with which the directivity of the directional coupler (10) is optimized and a resistance value of the resistance element (132) may be larger than a resistance value with which the directivity of the directional coupler (10) is optimized.
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公开(公告)号：US11600895B2
公开(公告)日：2023-03-07
申请号：US16984701
申请日：2020-08-04
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daisuke Tokuda , Yasushi Shigeno
Abstract: A directional coupler (1) includes a substrate (10), a main line (20) formed directly or indirectly on the substrate (10), sub-lines (21, 22 and 23) at least part of each of which is formed directly or indirectly on the substrate (10) along the main line (20), a switch (30) switching connections among end portions of the plurality of sub-lines (21, 22 and 23), and detection output terminals (FWD and REV) connected to the sub-line (21), wherein, when looking at the substrate (10) in plan, the end portions of the sub-lines (21, 22 and 23) are disposed on the opposite side to the detection output terminals (FWD and REV) relative to the main line (20), and the sub-line (21) to which the detection output terminals (FWD and REV) are connected is overlapped with or surrounded by the sub-lines (22 and 23).
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