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公开(公告)号：US20140306787A1
公开(公告)日：2014-10-16
申请号：US14314130
申请日：2014-06-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Noboru KATO , Takashi NOMA , Hisashi AKIYAMA
CPC classification number: H01F27/343 , H01F17/0013 , H01F17/0033 , H01F27/2804 , H01F27/292 , H01F2017/0093 , H01F2027/2809 , H01F2027/348 , H02H9/04 , H03H7/0107 , H03H7/427 , H03H2001/0085
Abstract: In a common-mode choke coil, first annular conductors are helically defined from the lower layer to the upper layer, and first annular conductors are helically defined from the upper layer to the lower layer. Further, second annular conductors are helically defined from the lower layer to the upper layer, and second annular conductors are helically defined from the upper layer to the lower layer. The first annular conductors and the second annular conductors are disposed alternately in a lamination direction. The first annular conductors and the second annular conductors are disposed such that substantial portions of the annular conductors adjacent to each other in the layer direction do not overlap in a planar view. This structure achieves a compact common-mode choke coil with which the loss of normal-mode signals is small, and which is highly capable of removing common-mode noise.
Abstract translation: 在共模扼流线圈中，第一环形导体从下层到上层螺旋地限定，并且第一环形导体从上层到下层螺旋地限定。 此外，第二环形导体从下层到上层螺旋地限定，并且第二环形导体从上层到下层螺旋地限定。 第一环形导体和第二环形导体沿层叠方向交替设置。 第一环形导体和第二环形导体被布置成使得在层方向上彼此相邻的环形导体的实质部分在平面图中不重叠。 这种结构实现了一种紧凑的共模扼流线圈，正常模式信号的损耗小，能够去除共模噪声。
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公开(公告)号：US20170324158A1
公开(公告)日：2017-11-09
申请号：US15662325
申请日：2017-07-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hisashi AKIYAMA , Kenichi ISHIZUKA
Abstract: A first end of a first conductor pattern of a first coil conductor is connected to a power supply terminal, and a second end of the first conductor pattern is connected to an antenna terminal. A second conductor pattern includes second coil conductors. A first end of the second conductor pattern is connected to the antenna terminal and the second end of the first conductor pattern, and a second end of the second conductor pattern is connected to a ground terminal. The second conductor pattern magnetically couples with the first conductor pattern. The second end of the first conductor pattern and the first end of the second conductor pattern are connected to the antenna terminal via a routing pattern that extends to magnetically couple with at least either the first conductor pattern or the second conductor pattern.
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公开(公告)号：US20160104569A1
公开(公告)日：2016-04-14
申请号：US14970614
申请日：2015-12-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Noboru KATO , Takashi NOMA , Hisashi AKIYAMA
CPC classification number: H01F27/343 , H01F17/0013 , H01F17/0033 , H01F27/2804 , H01F27/292 , H01F2017/0093 , H01F2027/2809 , H01F2027/348 , H02H9/04 , H03H7/0107 , H03H7/427 , H03H2001/0085
Abstract: In a common-mode choke coil, first annular conductors are helically defined from the lower layer to the upper layer, and first annular conductors are helically defined from the upper layer to the lower layer. Further, second annular conductors are helically defined from the lower layer to the upper layer, and second annular conductors are helically defined from the upper layer to the lower layer. The first annular conductors and the second annular conductors are disposed alternately in a lamination direction. The first annular conductors and the second annular conductors are disposed such that substantial portions of the annular conductors adjacent to each other in the layer direction do not overlap in a planar view. This structure achieves a compact common-mode choke coil with which the loss of normal-mode signals is small, and which is highly capable of removing common-mode noise.
Abstract translation: 在共模扼流线圈中，第一环形导体从下层到上层螺旋地限定，并且第一环形导体从上层到下层螺旋地限定。 此外，第二环形导体从下层到上层螺旋地限定，并且第二环形导体从上层到下层螺旋地限定。 第一环形导体和第二环形导体沿层叠方向交替设置。 第一环形导体和第二环形导体被布置成使得在层方向上彼此相邻的环形导体的实质部分在平面图中不重叠。 这种结构实现了一种紧凑的共模扼流线圈，正常模式信号的损耗小，能够去除共模噪声。
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Patent Agency Ranking
公开(公告)号：US20210297052A1
公开(公告)日：2021-09-23
申请号：US17342671
申请日：2021-06-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hisashi AKIYAMA , Kenichi ISHIZUKA
Abstract: A matching circuit includes first and second input/output ports; first, second, and third coils; and a capacitor. The first coil is connected in series between the first and second input/output ports, and the second coil is connected in shunt between a ground and an input/output line between the first and second input/output ports. The first and second coils are magnetically coupled to each other, the third coil is magnetically coupled to at least one of the first and second coils, the capacitor is directly or indirectly connected to the third coil, and a closed circuit including the capacitor and the third coil is provided.
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5.发明申请公开(公告)号：US20160142031A1
公开(公告)日：2016-05-19
申请号：US15002555
申请日：2016-01-21
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Noriyuki UEKI , Hisashi AKIYAMA
CPC classification number: H03H7/0115 , H01F2017/0026 , H02H9/045 , H02H9/046 , H03H7/09 , H03H7/427
Abstract: On a first-signal-line side, a first resonant circuit is defined by a first inductance element, a first capacitance element, a second capacitance element, a third inductance element and a fifth inductance element, a third resonant circuit is defined by the first inductance element, the first capacitance element and the second capacitance element, and a fifth resonant circuit is defined by the first inductance element, the third inductance element, the first capacitance element, the second capacitance element and the fifth capacitance element. Similarly, on a second-signal-line side, a second resonant circuit, a fourth resonant circuit and a sixth resonant circuit are provided.
Abstract translation: 在第一信号线侧，第一谐振电路由第一电感元件，第一电容元件，第二电容元件，第三电感元件和第五电感元件限定，第三谐振电路由第一电感元件 电感元件，第一电容元件和第二电容元件以及第五谐振电路由第一电感元件，第三电感元件，第一电容元件，第二电容元件和第五电容元件限定。 类似地，在第二信号线侧，提供第二谐振电路，第四谐振电路和第六谐振电路。
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公开(公告)号：US20210336598A1
公开(公告)日：2021-10-28
申请号：US17371178
申请日：2021-07-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hisashi AKIYAMA
Abstract: A matching circuit includes first and second ports, an autotransformer, and first and second capacitors. The autotransformer includes a first terminal coupled to a first port, a second terminal coupled to a second port, and a common terminal coupled to a reference potential, and includes a series parasitic inductor and a parallel parasitic inductor. The first capacitor is coupled in shunt to the second terminal, and defines a low pass filter together with the series parasitic inductor. The second capacitor is coupled in series between the first port and the first terminal, and defines a high pass filter together with the parallel parasitic inductor.
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公开(公告)号：US20200228086A1
公开(公告)日：2020-07-16
申请号：US16831871
申请日：2020-03-27
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hisashi AKIYAMA
Abstract: A matching circuit includes first and second ports, an autotransformer, and first and second capacitors. The autotransformer includes a first terminal coupled to a first port, a second terminal coupled to a second port, and a common terminal coupled to a reference potential, and includes a series parasitic inductor and a parallel parasitic inductor. The first capacitor is coupled in shunt to the second terminal, and defines a low pass filter together with the series parasitic inductor. The second capacitor is coupled in series between the first port and the first terminal, and defines a high pass filter together with the parallel parasitic inductor.
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公开(公告)号：US20150214915A1
公开(公告)日：2015-07-30
申请号：US14681225
申请日：2015-04-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kuniaki YOSUI , Noboru KATO , Hisashi AKIYAMA
IPC: H03H7/01
CPC classification number: H03H7/0115 , H01P1/20 , H03H7/09 , H03H7/1725 , H03H7/1733 , H03H7/1758 , H03H7/1775 , H03H7/1783 , H03H7/427 , H03H2001/0085
Abstract: A common mode filter includes, between ports, a differential transmission line including a first signal line and a second signal line. The first signal line includes a first inductor arranged in series, and the second signal line includes a second inductor arranged in series. In addition, a first resonant circuit is provided between the first end of the first inductor and the ground, and a second resonant circuit is provided between the first end of the second inductor and the ground.
Abstract translation: 共模滤波器在端口之间包括包括第一信号线和第二信号线的差分传输线。 第一信号线包括串联布置的第一电感器，第二信号线包括串联布置的第二电感器。 此外，第一谐振电路设置在第一电感器的第一端和地之间，第二谐振电路设置在第二电感器的第一端和地之间。
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