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公开(公告)号：US20180131093A1
公开(公告)日：2018-05-10
申请号：US15722015
申请日：2017-10-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyuki TENNO
Abstract: An antenna device includes a wiring board, a conductive member including a first conductor portion and a second conductor portion electrically connected to each other, a coil element including a coupling coil to be connected to a feed circuit, and a capacitor. The first conductor portion includes a conductor opening and a gap that connects the conductor opening and an outer edge of the first conductor portion, and the capacitor crosses the gap. The second conductor portion is connected to two points of an inner edge of the conductor opening, and, together with a portion of the first conductor portion and the capacitor, defines a loop-shaped current path. The coupling coil is magnetically coupled to the loop-shaped current path.
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公开(公告)号：US20180121781A1
公开(公告)日：2018-05-03
申请号：US15844663
申请日：2017-12-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyuki TENNO , Hiromitsu ITO , Kentaro MIKAWA
IPC: G06K19/077 , G06K7/10
CPC classification number: G06K19/07773 , G06K7/10316 , G06K7/10336 , G06K7/10346 , G06K7/10356 , G06K19/07749 , H01Q7/00 , H01Q7/06
Abstract: An antenna device includes first and second coil antennas with winding axis directions that are not perpendicular to each other, and a feeder coil including a winding axis that extends perpendicular or substantially perpendicular to the winding axis of the first coil antenna. The feeder coil is located between the first coil antenna and the second coil antenna in a height direction (winding axis direction) thereof. A first coil aperture is closer to a coil aperture of the first coil antenna than a second coil aperture. The second coil aperture is closer to a coil aperture of the second coil antenna than the first coil aperture. The first and second coil antennas are connected to each other in a polarity such that magnetic fluxes thereof with respect to the winding axis direction of the first coil antenna are in phase with each other.
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公开(公告)号：US20170125883A1
公开(公告)日：2017-05-04
申请号：US15378094
申请日：2016-12-14
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyuki TENNO
CPC classification number: H01Q1/2283 , G06K19/07749 , H01Q1/2216 , H01Q1/2291 , H01Q1/38 , H01Q7/06 , H04B5/0081
Abstract: An antenna device includes an antenna coil with first and second ends and an IC with at least first and second terminals. A closed loop including the antenna coil and the IC is defined by external terminals connected to a conductor pattern on a circuit board mounted to the circuit board. Accordingly, an antenna device and an antenna module that significantly reduce or prevent malfunctions before the antenna device is incorporated into an electronic apparatus, and a communication terminal apparatus including the antenna device or the antenna module, are provided.
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公开(公告)号：US20220200118A1
公开(公告)日：2022-06-23
申请号：US17694794
申请日：2022-03-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tomohiro NAGAI , Nobuyuki TENNO
Abstract: A transmission line includes a first interlayer connection conductor connecting a first signal conductor and a first mounting electrode, a second interlayer connection conductor connecting a second signal conductor and a second mounting electrode, a third and fourth interlayer connection conductors respectively including third and fourth interlayer connection conductors, and each connecting first and second ground conductors between the first and second signal conductors. The third interlayer connection conductor is closer to the first and second interlayer connection conductors than the fourth interlayer connection conductor is, an adjacent distance between two of the fourth interlayer connection conductors is greater than an adjacent distance between two of the third interlayer connection conductors, and the adjacent distance between the two fourth interlayer connection conductors is less than about ½ of a minimum wavelength of signals transmitted by the first signal conductor and the second signal conductor.
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公开(公告)号：US20220173506A1
公开(公告)日：2022-06-02
申请号：US17675443
申请日：2022-02-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takeyuki OKABE , Nobuyuki TENNO , Daiki KOBAYASHI
Abstract: An antenna installation structure includes an antenna substrate, an insulation layer, and a bonding material. The antenna substrate includes a dielectric base including a first main surface and a second main surface, and an antenna conductor and a ground conductor which are on the first main surface and are separated from each other. The insulation layer is in contact with the first main surface of the antenna substrate. The bonding material is between the insulation layer and a radiation side wall of a housing and is in contact with the insulation layer and the radiation side wall. The porosity of the insulation layer is lower than the porosity of the bonding material.
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Patent Agency Ranking
公开(公告)号：US20220029265A1
公开(公告)日：2022-01-27
申请号：US17495852
申请日：2021-10-07
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyuki TENNO , Nobuo IKEMOTO , Takahiro BABA , Kenji MATSUDA
Abstract: A transmission line includes a ground conductor between first and second signal conductors. A substrate includes a first insulating layer and a second insulating layer having a relative permittivity lower than a relative permittivity of the first insulating layer. The first and second insulating layers are laminated in the thickness direction of the substrate and in contact with each other. The first and second signal conductors and the ground conductor are on an interface at which the first and second insulating layers are in contact with each other. The first and second signal conductors and the ground conductor each include a surface in contact with the first insulating layer and a surface in contact with the second insulating layer, the surface in contact with the second insulating layer being larger than the surface in contact with the first insulating layer.
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公开(公告)号：US20190386394A1
公开(公告)日：2019-12-19
申请号：US16553396
申请日：2019-08-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyuki TENNO
IPC: H01Q7/00 , H01Q1/22 , H05K1/18 , H01Q1/48 , G06K19/077
Abstract: An antenna unit includes a substrate, a body that includes a first conductive portion and a second conductive portion opposed to each other on side surfaces orthogonal or substantially orthogonal to a first main surface of the substrate, and first and second coil antennas the winding axes of which are orthogonal or substantially orthogonal to the first main surface. In a plan view of the first main surface, the first coil antenna is positioned in proximity to the first conductive portion, compared with the second coil antenna, and the second coil antenna is positioned in proximity to the second conductive portion, compared with the first coil antenna. In a plan view of the first main surface, a straight line passing through the first coil antenna and the second coil antenna intersects with the first conductive portion and the second conductive portion.
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公开(公告)号：US20190235584A1
公开(公告)日：2019-08-01
申请号：US16377328
申请日：2019-04-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyuki TENNO , Toshinori IKUNO
CPC classification number: G06F1/1683 , G06F1/1681 , H01Q1/243 , H01Q1/52 , H01Q7/06 , H01Q21/28 , H02J7/025 , H02J50/10 , H02J50/12 , H02J50/70 , H05K9/00
Abstract: An electronic device includes a first main body portion including first and surfaces, and a second main body portion connected to the first main body portion. The first main body portion includes a display close to the first surface, and a first coil antenna. The second main body portion includes a second coil antenna. The first coil antenna is closer to the second surface than to the first surface. The second coil antenna is disposed in the second main body portion. The electronic device is switchable between a first state in which the second main body portion does not overlap the second surface when using the electronic device in the first system, and a second state in which the second main body portion overlaps the second surface when using the electronic device in the second system.
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公开(公告)号：US20190207311A1
公开(公告)日：2019-07-04
申请号：US16296358
申请日：2019-03-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyuki TENNO
Abstract: An antenna device includes a wiring board, a conductive member including a first conductor portion and a second conductor portion electrically connected to each other, a coil element including a coupling coil to be connected to a feed circuit, and a capacitor. The first conductor portion includes a conductor opening and a gap that connects the conductor opening and an outer edge of the first conductor portion, and the capacitor crosses the gap. The second conductor portion is connected to two points of an inner edge of the conductor opening, and, together with a portion of the first conductor portion and the capacitor, defines a loop-shaped current path. The coupling coil is magnetically coupled to the loop-shaped current path.
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30.发明申请公开(公告)号：US20180019054A1
公开(公告)日：2018-01-18
申请号：US15717984
申请日：2017-09-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyuki TENNO
CPC classification number: H01F27/2804 , G06K19/07722 , G06K19/07732 , G06K19/07735 , G06K19/07783 , H01F17/0006 , H01F27/292 , H01F38/14 , H01F2038/143 , H01Q1/243 , H01Q7/00 , H01Q7/08 , H02J50/10 , H05K1/181 , H05K2201/10098
Abstract: A coil antenna includes an insulator with a first principal surface and a second principal surface opposing to the first principal surface, a coil conductor provided on or in the insulator, a first pad electrode and a second pad electrode both provided on the first principal surface, and a third pad electrode and a fourth pad electrode both provided on the second principal surface. The coil conductor includes a first end and a second end. The first pad electrode and the third pad electrode are electrically connected to the first end side of the coil conductor, while the second pad electrode and the fourth pad electrode are electrically connected to the second end side of the coil conductor. Thus, the pad electrodes connected to the coil conductor are provided on each of the first principal surface and the second principal surface of the insulator.
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