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公开(公告)号：US11509034B2
公开(公告)日：2022-11-22
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
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.
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公开(公告)号：US11894597B2
公开(公告)日：2024-02-06
申请号：US17028320
申请日：2020-09-22
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daisuke Tokuda , Yasushi Shigeno
CPC classification number: H01P5/18 , H01P3/08 , H05K1/0243
Abstract: A directional coupler includes a substrate, a main line 121, a main line 122, and a sub-line. The main line 121 and the main line 122 each include a conductor pattern formed in the substrate, and are connected in parallel to each other. The sub-line includes a conductor pattern formed in the substrate. The sub-line is disposed at a position at least partially overlapping with the main line 121 in a plan view of the substrate.
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公开(公告)号：US11699983B2
公开(公告)日：2023-07-11
申请号：US17032281
申请日：2020-09-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daisuke Tokuda , Ryangsu Kim , Yasushi Shigeno , Katsuya Shimizu
Abstract: A directional coupler (2) includes a main line (11), a sub-line (12), a variable terminator (13), and a variable filter circuit (15). The variable terminator (13) is a variable impedance circuit that terminates one end portion of the sub-line (12). The variable filter circuit (15) is connected to the other end portion of the sub-line (12). The variable filter circuit (15) may include a filter, a bypass path, and a switch which is connected to at least one of the filter and the bypass path.
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公开(公告)号：US10461392B2
公开(公告)日：2019-10-29
申请号：US15994741
申请日：2018-05-31
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Ryangsu Kim , Yasushi Shigeno
Abstract: A bidirectional coupler includes a multilayer board, a first main line, a second main line, a third main line, and an sub line. The sub line includes a first line portion, an even number of second line portions, and an even number of third line portions. One half of the second line portions is provided between the first line portion and one end of the sub line. The other half of the second line portions is provided between the first line portion and the other end of the sub line. One half of the third line portions is provided between the one half of the second line portions and the one end of the sub line. The other half of the third line portions is provided between the other half of the second line portions and the other end of the sub line.
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公开(公告)号：US20180351228A1
公开(公告)日：2018-12-06
申请号：US15994741
申请日：2018-05-31
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Ryangsu Kim , Yasushi Shigeno
CPC classification number: H01P5/18 , H01P5/185 , H03H9/70 , H04B1/0057 , H04B3/52
Abstract: A bidirectional coupler includes a multilayer board, a first main line, a second main line, a third main line, and an sub line. The sub line includes a first line portion, an even number of second line portions, and an even number of third line portions. One half of the second line portions is provided between the first line portion and one end of the sub line. The other half of the second line portions is provided between the first line portion and the other end of the sub line. One half of the third line portions is provided between the one half of the second line portions and the one end of the sub line. The other half of the third line portions is provided between the other half of the second line portions and the other end of the sub line.
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Patent Agency Ranking
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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公开(公告)号：US09014654B2
公开(公告)日：2015-04-21
申请号：US14055104
申请日：2013-10-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tsutomu Kobori , Shigeki Koya , Akishige Nakajima , Yasushi Shigeno
Abstract: A semiconductor apparatus includes multiple field effect transistors provided between an antenna terminal to be connected to an antenna and multiple external terminals through which RF signals are capable of being supplied and a voltage generating circuit. When the field effect transistors provided between one of the multiple external terminals and the antenna terminal are turned off, the voltage generating unit charges a capacitor via a resistor circuit by switching the polarity of the RF signal to be supplied to the other external terminal with respect to the control signal and outputs a voltage based on a sum of the charge voltage and the voltage of the control signal as the gate drive voltage. The resistor circuit includes a first resistor including positive temperature characteristics and a second resistor including negative temperature characteristics.
Abstract translation: 半导体装置包括设置在要连接到天线的天线端子与能够提供RF信号的多个外部端子之间的多个场效应晶体管和电压产生电路。 当设置在多个外部端子中的一个外部端子和天线端子之间的场效应晶体管截止时，电压产生单元通过电阻电路对电容器充电，通过将要提供给另一个外部端子的RF信号的极性相对于 并输出基于充电电压和控制信号的电压之和的电压作为栅极驱动电压。 电阻电路包括具有正温度特性的第一电阻器和包括负温度特性的第二电阻器。
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公开(公告)号：US20140328223A1
公开(公告)日：2014-11-06
申请号：US14361448
申请日：2012-11-26
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Eigo Tange , Shigeki Koya , Yasushi Shigeno , Akishige Nakajima
CPC classification number: H04B1/525 , H04B1/0064 , H04B1/44 , H04B15/04
Abstract: Reduction of intermodulation distortion in a high-frequency switch is achieved. A semiconductor device (1) includes an antenna terminal (ANT_LB), plural external terminals (RX_LB, TX_LB, TRX_LB, TERM_LB), plural first high-frequency switches (101 to 104), and plural control terminals. Each first high-frequency switch includes plural first field-effect transistors, plural first resistors (Rg—1 to Rg—6) connected to the gate terminals of the first field-effect transistors, and a second resistor (Rc) disposed between the corresponding control terminal and the first resistors. The second resistor in the first high-frequency switch disposed between the first terminal supplied with an RF transmission signal and an RF reception signal of a frequency division duplex system and the antenna terminal is configured so that linearity of current-voltage characteristics thereof is higher than linearity of current-voltage characteristics of the first resistor.
Abstract translation: 实现了降低高频开关中的互调失真。 半导体装置（1）包括天线端子（ANT_LB），多个外部端子（RX_LB，TX_LB，TRX_LB，TERM_LB），多个第一高频开关（101〜104）和多个控制端子。 每个第一高频开关包括多个第一场效应晶体管，连接到第一场效应晶体管的栅极端的多个第一电阻器（Rg-1至Rg-6）和设置在相应的第一场效应晶体管之间的第二电阻器（Rc） 控制端子和第一个电阻。 布置在提供有RF传输信号的第一端子与频分双工系统的RF接收信号之间的第一高频开关中的第二电阻器和天线端子被配置为使得电流 - 电压特性的线性度高于 第一电阻器的电流 - 电压特性的线性度。
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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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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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