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公开(公告)号：US20240243488A1
公开(公告)日：2024-07-18
申请号：US18619207
申请日：2024-03-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hideki UEDA , Takaya NEMOTO , Kengo ONAKA
Abstract: An array accommodated in a housing includes multiple antenna elements. The antenna elements face an inside surface of the housing and are arrayed in a first direction at least one-dimensionally. A waveguide is coupled to the antenna elements of the array antenna and extends from the array antenna toward the inside surface of the housing. The waveguide has a housing-side end face facing the inside surface of the housing and an antenna-side end face facing the array antenna. A length from one end to an opposite end of the housing-side end face in the first direction is greater than a length from one end to an opposite end of the antenna-side end face in the first direction. An antenna device that can improve antenna gain without increasing the size of the antenna module is provided.
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公开(公告)号：US20230140655A1
公开(公告)日：2023-05-04
申请号：US18090508
申请日：2022-12-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kengo ONAKA , Hirotsugu MORI , Yoshiki YAMADA , Kaoru SUDO , Hiroshi IZUMITANI
Abstract: An antenna module includes a first substrate, a second substrate, a connection member connected between the first substrate and the second substrate, and an FEM disposed on the connection member. A radiating element is disposed on the first substrate. An RFIC for supplying a radio frequency signal to the radiating element is disposed on the second substrate. The connection member transmits radio frequency signals between the RFIC and the radiating element. The FEM amplifies radio frequency signals transmitted between the RFIC and the radiating element. The FEM is disposed at a position between a connecting point with the first substrate and a connecting point with the second substrate on the connection member.
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公开(公告)号：US20220216585A1
公开(公告)日：2022-07-07
申请号：US17702799
申请日：2022-03-24
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Naoki GOUCHI , Kengo ONAKA
Abstract: An antenna module includes an antenna substrate including a feed element, and a radio frequency integrated circuit (RFIC) mounted on a lower surface of the antenna substrate. The antenna substrate includes a mount portion on which the RFIC is mounted and an overhang portion that extends outward from the mount portion. The feed element is disposed in the mount portion and the overhang portion. The antenna module further includes a heat dissipator disposed on the lower surface of the overhang portion.
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公开(公告)号：US20210336348A1
公开(公告)日：2021-10-28
申请号：US17370504
申请日：2021-07-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kaoru SUDO , Kengo ONAKA , Hirotsugu MORI
Abstract: The present disclosure reduces a loss of strength of a radio-frequency signal radiated from an antenna module covered with a housing. An antenna module (100) includes a dielectric substrate (130), a driven element (141), and a ground conductor (190). The dielectric substrate (130) has a multilayer structure. The driven element (141) is disposed in or on the dielectric substrate (130). The ground conductor (190) is disposed between the driven element (140) and a mounting surface (132) on which a power supply circuit is mountable. The power supply circuit supplies the driven element (140) with radio-frequency power. The dielectric substrate has at least one groove (150). The at least one groove (150) is separate from the driven element (140) when the antenna module (100) is viewed in plan. The at least one groove (150) extends toward the ground conductor (190) from a layer on which the driven element (140) is disposed.
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公开(公告)号：US20210194126A1
公开(公告)日：2021-06-24
申请号：US17191889
申请日：2021-03-04
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kaoru SUDO , Kengo ONAKA , Hirotsugu MORI
Abstract: An antenna module includes a dielectric substrate having a multilayer structure, a power supply element and a ground electrode (GND) disposed in or on the dielectric substrate, a parasitic element, a power supply wiring line, and first and second stubs to be connected to the power supply wiring line. The parasitic element is disposed in a layer between the power supply element and the ground electrode (GND). The power supply wiring line passes through the parasitic element and supplies radio frequency power to the power supply element. The first stub is connected to a position different from a connection position of the second stub in the power supply wiring line.
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Patent Agency Ranking
公开(公告)号：US20200153098A1
公开(公告)日：2020-05-14
申请号：US16740003
申请日：2020-01-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kengo ONAKA , Kaoru SUDO , Hirotsugu MORI
Abstract: An antenna device is enclosed in a housing. The antenna device includes a dielectric substrate in which a plurality of layers including a ground layer is stacked on top of one another, a feed element, a parasitic element, a feed line, and a conductive member placed in or on the dielectric substrate. The feed element is placed within or on a surface of the housing, and the parasitic element is placed in the dielectric substrate. The feed line is placed, in the dielectric substrate, in a layer between a layer in which the parasitic element is placed and the ground layer and sends a radio frequency signal. When the dielectric substrate is attached to the housing, the conductive member electrically connects the feed line and the feed element and supplies a radio frequency signal to the feed element.
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公开(公告)号：US20190221937A1
公开(公告)日：2019-07-18
申请号：US16363309
申请日：2019-03-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kengo ONAKA , Yoshiki YAMADA
CPC classification number: H01Q9/0414 , H01Q3/26 , H01Q5/385 , H01Q5/392 , H01Q9/04 , H01Q13/08 , H01Q19/005 , H01Q21/06 , H01Q21/28 , H01Q23/00
Abstract: A patch antenna includes a power feeding conductor pattern formed in a dielectric layer, a ground conductor pattern formed on the dielectric layer, a first parasitic conductor pattern and a second parasitic conductor pattern formed in/on the dielectric layer and is not set to have a ground potential. The first parasitic conductor pattern, the power feeding conductor pattern, the second parasitic conductor pattern, and the ground conductor pattern are arranged in this order in a cross section and overlap each other in a plan view. A resonant frequency f1 defined by an opposite-phase mode current flowing through the first parasitic conductor pattern is higher than a resonant frequency f2 defined by an in-phase mode current flowing through the power feeding conductor pattern, and a resonant frequency f3 defined by an opposite-phase mode current flowing through the second parasitic conductor pattern is lower than the resonant frequency f2.
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18.发明申请公开(公告)号：US20180159220A1
公开(公告)日：2018-06-07
申请号：US15883593
申请日：2018-01-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsuhito KURODA , Kengo ONAKA
Abstract: The present disclosure includes a first circuit that is connected between a power feed port and an antenna port, and a second circuit that is connected between the power feed port and the ground or between the antenna port and the ground. The first circuit is a circuit in which for example a first variable capacitance element is connected in series with a first inductor, and the second circuit is a circuit in which for example a second variable capacitance element is connected in parallel with a second inductor. A switch performs switching at least between a first state in which a second end of the second circuit is connected to a first end of the first circuit and a second state in which the second end of the second circuit is connected to a second end of the first circuit.
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公开(公告)号：US20170179998A1
公开(公告)日：2017-06-22
申请号：US15447412
申请日：2017-03-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kengo ONAKA , Katsuhito KURODA , Yuki NAKAIKE , Reiji NAKAJIMA
CPC classification number: H04B1/52 , H01P1/213 , H01P1/383 , H03H7/38 , H04B1/44 , H04B1/48 , H04B1/50 , H04W4/80
Abstract: A front end circuit includes a circulator having a first port into which a transmission signal is input, a second port into/from which a transmission/reception signal is input/output, and a third port from which a reception signal is output. The impedance of the second port of the circulator is set to a value different from the impedance value of the first port and the third port. With his configuration, the narrowing of a frequency band and the increase in loss, which occur when an impedance matching circuit is additionally provided, are prevented.
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公开(公告)号：US20250038415A1
公开(公告)日：2025-01-30
申请号：US18918133
申请日：2024-10-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kengo ONAKA , Yosuke SATO , Hirotsugu MORI
Abstract: An antenna module includes a first dielectric substrate at which a first radiating electrode with a flat plate shape is disposed and a second dielectric substrate at which a second radiating electrode shape is disposed. The first dielectric substrate has a first surface and a second surface that are opposite each other. The first radiating electrode is disposed on the second surface of the first dielectric substrate or at a position between the first and second surfaces of the first dielectric substrate. The second dielectric substrate includes a region that is arranged so as abut the first dielectric substrate and a region that is in contact with the first surface of the dielectric substrate. A normal direction of the radiating electrode is different from a normal direction of the radiating electrode.
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