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公开(公告)号：US20230411866A1
公开(公告)日：2023-12-21
申请号：US18238533
申请日：2023-08-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshiki YAMADA , Ryo KOMURA
CPC classification number: H01Q21/0006 , H01Q1/50 , H01Q1/38
Abstract: An antenna module includes a dielectric substrate including a plurality of laminated dielectric layers, a radiating element, a ground electrode, and a peripheral electrode. The ground electrode opposes the radiating element. The peripheral electrode is on a layer between the radiating element and the ground electrode and electrically connected to the ground electrode. The radiating element radiates a radio wave in a first polarization direction. A dimension of the ground electrode in the first polarization direction is shorter than a dimension of the ground electrode in a specific direction orthogonal to the first polarization direction. When the dielectric substrate is seen in plan view in a layered direction, at least a portion of the peripheral electrode is disposed between an end portion of the ground electrode and an end portion of the radiating element in the first polarization direction.
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公开(公告)号：US20230361484A1
公开(公告)日：2023-11-09
申请号：US18353897
申请日：2023-07-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Ryo KOMURA
CPC classification number: H01Q21/065 , H01Q1/2208
Abstract: An array antenna is formed of a plurality of antenna modules disposed adjacent to each other and including a plurality of antenna modules. Each of the antenna modules includes a dielectric substrate, a ground electrode, and a sub-array. The sub-array is formed of a plurality of radiating elements facing the ground electrode. In the sub-array, the plurality of radiating elements are arranged in a matrix, and each includes multiple feeding points. The sub-array is disposed along an end portion of the dielectric substrate. The sub-array has a center deviated from a center of the dielectric substrate toward the end portion. An end portion of a first antenna module faces an end portion of a second antenna module in a first direction that is defined as a direction from the first antenna module toward the second antenna module.
The first antenna module is rotationally symmetric to the second antenna module.-
公开(公告)号：US20220224008A1
公开(公告)日：2022-07-14
申请号：US17657174
申请日：2022-03-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Ryo KOMURA
Abstract: A dual-band antenna device allowed to perform communication at a first frequency in a predetermined frequency band and at a second frequency in a frequency band higher than the predetermined frequency band includes: a ground conductor; a folded antenna conductor including a first linear part and a second linear part that are caused to face each other at a distance by folding; an LC resonant circuit that is included in the folded antenna conductor, that lets the first frequency pass, and that lets the second frequency attenuate; and a feeding point between the ground conductor and the folded antenna conductor. A narrow gap part is provided between the first linear part and the second linear part of the folded antenna conductor, the narrow gap part measuring a distance shorter than a distance measured in a different portion between the first linear part and the second linear part.
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公开(公告)号：US20200044342A1
公开(公告)日：2020-02-06
申请号：US16654191
申请日：2019-10-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Ryo KOMURA
Abstract: The dual-band antenna device includes: a feeding electrode that branches into a first branch feeding electrode that serves as a low-frequency signal path and a second branch feeding electrode that serves as a high-frequency signal path; and a radiation electrode having a rectangular shape with a longitudinal direction and having a low-frequency feeding point to which the first branch feeding electrode is electrically connected and a high-frequency feeding point to which the second branch feeding electrode is electrically connected. In the radiation electrode, the low-frequency feeding point or the high-frequency feeding point is formed close to an end portion of the rectangular shape in the longitudinal direction, and the high-frequency feeding point or the low-frequency feeding point is formed at a center portion of a side of the rectangular shape that extends in the longitudinal direction.
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Patent Agency Ranking
公开(公告)号：US20240113433A1
公开(公告)日：2024-04-04
申请号：US18539314
申请日：2023-12-14
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kengo ONAKA , Ryo KOMURA , Hirotsugu MORI
CPC classification number: H01Q9/0414 , H01Q1/243 , H01Q1/48 , H01Q5/378
Abstract: An antenna module including a dielectric substrate having a long side and a short side, a ground electrode, a radiating element, a peripheral electrode, and a parasitic element. The radiating element is disposed to face the ground electrode. The peripheral electrode is disposed along the long side of the dielectric substrate and is electrically connected to the ground electrode. The parasitic element is disposed along the short side of the dielectric substrate and is disposed away from the radiating element. The radiating element is configured to emit radio waves in two polarization directions along the long side and the short side of the dielectric substrate. The shortest distance between the radiating element and the parasitic element is greater than the shortest distance between the radiating element and the peripheral electrode.
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公开(公告)号：US20240106106A1
公开(公告)日：2024-03-28
申请号：US18536241
申请日：2023-12-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Naoki GOUCHI , Ryo KOMURA
CPC classification number: H01Q1/243 , H01Q9/045 , H01Q21/0006 , H01Q21/24
Abstract: An antenna module has a substrate, a radiating element disposed in or on the substrate, a power feeding line, and a dielectric body. The substrate has a rectangular shape including first and second sides adjacent to each other. The power feeding line extends in a normal direction of the substrate and transfers radio frequency signals supplied from an RFIC to the radiating element. The dielectric body is disposed on a side surface of the substrate. The power feeding line is coupled to the radiating element at a position offset from the center of the radiating element in a first direction toward the first side. The dielectric body is disposed so as to cover the side surface of the substrate including the first side. The dielectric constant of the dielectric body is higher than the dielectric constant of the substrate.
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公开(公告)号：US20210242596A1
公开(公告)日：2021-08-05
申请号：US17234988
申请日：2021-04-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Ryo KOMURA , Yoshiki YAMADA
Abstract: An antenna module includes a dielectric substrate, a radiation electrode, a ground electrode, and a current-interrupting element. The radiation electrode is disposed in a layer of the dielectric substrate, and the ground electrode is disposed in another layer of the dielectric substrate. The current-interrupting element is electrically connected to the ground electrode. The current-interrupting element is configured to interrupt a current flowing through the ground electrode. The current-interrupting element has a first edge portion electrically connected to the ground electrode and a second edge portion left open and includes a planar electrode parallel to the ground electrode. The dimension of the current-interrupting element in the direction from the first edge portion to the second edge portion is about λ/4, where λ is the wavelength of a radio-frequency signal radiated from the radiation electrode.
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公开(公告)号：US20210226335A1
公开(公告)日：2021-07-22
申请号：US17226207
申请日：2021-04-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Ryo KOMURA , Yoshiki YAMADA
Abstract: An antenna module includes a radiation electrode in which a radio frequency signal is supplied to a first feed point and a second feed point. The antenna module further includes a feed wire configured to supply a radio frequency signal to the first feed point of the radiation electrode and a feed wire branching from the feed wire and configured to supply a radio frequency signal to the second feed point. The feed wire includes two paths connected in parallel between the first feed point and the second feed point and having the same length. The paths are disposed so as to be mutually line-symmetric in plan view of the antenna module with respect to a straight line connecting the first feed point to the second feed point.
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公开(公告)号：US20200295464A1
公开(公告)日：2020-09-17
申请号：US16891307
申请日：2020-06-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Ryo KOMURA , Yoshiki YAMADA
Abstract: A patch antenna includes: a ground conductor pattern lying in a plane and set to ground potential; a feeding conductor pattern lying in a plane and disposed in a manner so as to face the ground conductor pattern, the feeding conductor pattern having feed points that are opposite to each other with respect to a center point of the feeding conductor pattern; feed lines that are connected in parallel between the feed points and are of different lengths; and a frequency selection circuits disposed on a path of at least one of the feed lines, the frequency selection circuits being configured to allow passage of radio-frequency signals in one frequency band and to attenuate radio-frequency signals in another frequency band.
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