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公开(公告)号：US20230335907A1
公开(公告)日：2023-10-19
申请号：US18338191
申请日：2023-06-20
Applicant: DENSO CORPORATION
Inventor： Yuuji KAKUYA , Masakazu IKEDA , Kenichiro SANJI , Tomokazu MIYASHITA , Ryozo FUJII , Masashi URABE , Hiromichi NAITO
CPC classification number: H01Q9/0407 , H01Q1/3283
Abstract: A wireless communication device for transmitting and receiving radio waves of a target frequency includes a ground plate having a rectangular shape, a zeroth-order resonant antenna element arranged at a position shifted from a center of the ground plate in a lengthwise direction of the ground plate, and a circuit module configured to transmit and receive signal via the zeroth-order resonant antenna element. The zeroth-order resonant antenna element includes a counter conductor plate arranged at a predetermined distance from the ground plate and having a feed point connected to a feedline, and a short circuit portion electrically connecting the counter conductor plate and the ground plate. The ground plate, the counter conductor plate and the short circuit portion are configured to cause parallel resonance at the target frequency and satisfy a condition that resonance caused by the ground plate is reduced.
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公开(公告)号：US20230163472A1
公开(公告)日：2023-05-25
申请号：US18158862
申请日：2023-01-24
Applicant: DENSO CORPORATION
Inventor： Yuuji KAKUYA , Kenichirou SANJI
CPC classification number: H01Q9/0421 , H01Q1/48
Abstract: An antenna device includes a ground plate made of a flat conductor member, and an opposing conductive plate, which is a flat conductor member placed at a predetermined distance from the ground plate and electrically connected to a power supply line, a short-circuit portion provided in a central region of the opposing conductive plate for electrically connecting the opposing conductive plate and the ground plate. An operating frequency is a frequency at which an inductance of the short-circuit portion and the capacitance formed by the ground plate and the opposing conductive plate resonate in parallel. The short-circuit portion has a perimeter part that is short-circuited with the opposing conductive plate. A circuit is arranged in an area surrounded by a part where a short-circuit portion is short-circuited on the opposing conductive plate.
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公开(公告)号：US20230114784A1
公开(公告)日：2023-04-13
申请号：US18079323
申请日：2022-12-12
Applicant: DENSO CORPORATION
Inventor： Yuuji KAKUYA , Kenichirou SANJI , Tomokazu MIYASHITA , Masakazu IKEDA
Abstract: An antenna mounting system includes an antenna device and a conductive base plate. The antenna device includes a ground plate, an opposing conductive plate, and a short-circuit pin. The short-circuit pin is positioned to cause a radio wave radiated from the antenna device in a direction perpendicular to the ground plate such that radio wave: has a polarization component that oscillates in a direction parallel to a main plane of polarization of a radio wave radiated from the conductive base plate in the direction perpendicular to the ground plate; and is shifted in phase from the radio wave radiated from the conductive base plate by a phase difference within a range from 90 degrees to 270 degrees.
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公开(公告)号：US20230066781A1
公开(公告)日：2023-03-02
申请号：US17982254
申请日：2022-11-07
Applicant: DENSO CORPORATION
Inventor： Youhei SEKIYA , Yuzi SUGIMOTO , Masakazu IKEDA , Yuuji KAKUYA , Ryuichi ARAI , Shirou KOIDE , Takuya YAMASHITA , Hiroyuki IZUMI
Abstract: An antenna device includes: a first antenna having a directional gain at a low elevation angle higher than the directional gain at a high elevation angle; a second antenna having the directional gain at the high elevation angle higher than the first antenna, transmitting and receiving a radio wave having a vibration direction of an electric field intersecting with a radio wave transmitted and received by the first antenna; and a third antenna having the directional gain at the high elevation angle higher than the first antenna, and transmitting and receiving a radio wave having a vibration direction of an electric field intersecting with the radio wave transmitted and received by the second antenna.
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公开(公告)号：US20230039277A1
公开(公告)日：2023-02-09
申请号：US17972133
申请日：2022-10-24
Applicant: DENSO CORPORATION
Inventor： Yuuji KAKUYA , Masakazu IKEDA , Kenichirou SANJI , Tomokazu MIYASHITA , Ryozou FUJII , Masashi URABE , Hiromichi NAITOH
Abstract: An antenna device includes a ground plate which is a flat plate-shaped conductor member, an opposing conductive plate which is a flat plate-shaped conductor member installed at a predetermined distance from the ground plate and is electrically connected to a power supply line, and a plurality of short-circuit pins for electrically connecting the opposing conductive plate and the ground plate. One end of a plurality of short-circuit pins extends to a conductive plate plane, which is a plane including the opposing conductive plate, and the other end of the plurality of short-circuit pins extends to the ground plate plane, which is a plane including the ground plate. One or more of the plurality of short-circuit pins connect the opposing conductive plate and the ground plate.
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Patent Agency Ranking
公开(公告)号：US20230092857A1
公开(公告)日：2023-03-23
申请号：US18070277
申请日：2022-11-28
Applicant: DENSO CORPORATION
Inventor： Yuuji KAKUYA , Masakazu IKEDA , Kenichirou SANJI , Tomokazu MIYASHITA , Ryozou FUJII
Abstract: An antenna device includes a ground plate and an antenna element. The ground plate is a conductor member with a flat rectangular shape. The antenna element is a conductor member having a feed point electrically connected to a feeder line. A length of the ground plate in a predetermined direction is shorter than a target wavelength that is a wavelength of a radio wave to be transmitted or received. The ground plate is connected to a grounding cable at a connection position on the ground plate. The connection position is shifted from an edge of the ground plate by an odd multiple of ¼ of the target wavelength.
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公开(公告)号：US20210336320A1
公开(公告)日：2021-10-28
申请号：US17370777
申请日：2021-07-08
Applicant: DENSO CORPORATION
Inventor： Yuuji KAKUYA , Kazuhiro AOKI , Yusuke TAINAKA
Abstract: A transmission line assembly is configured such that (i) a first target inner layer is one of second to (N−1)-th pattern layers selected therefrom, and (ii) a second target inner layer is another one of the second to (N−1)-th pattern layers selected therefrom; the second to (N−1)-th pattern layers except for the first and second target inner layers are referred to as inner layers. The transmission line assembly includes band-like first and second slits formed through the ground pattern of a corresponding one of the first and second target inner layers to expose a part of one of dielectric layers; the one of the dielectric layers is adjacent to the corresponding one of the first and second target inner layers. Each of the first and second slits has an edge facing the interlayer line, and the edge of each of the first and second slits is concavely curved toward the interlayer line.
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公开(公告)号：US20200251798A1
公开(公告)日：2020-08-06
申请号：US16855375
申请日：2020-04-22
Applicant: SOKEN, INC. , DENSO CORPORATION
Inventor： Kazumasa SAKURAI , Kazuya WAKITA , Yuuji KAKUYA
Abstract: A signal via has a via diameter that causes a high-frequency signal to be propagated through a high-frequency transmission line using multi mode transmission (multi-mode interference transmission). At least one of the inter-via distance between the signal via and respective ground vias, the via diameter, and the thickness of the multilayer substrate is determined to introduce the high-frequency signal from the interlayer transmission line to the signal lines in the high-intensity region of the multi mode transmission.
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9.发明申请公开(公告)号：US20190393613A1
公开(公告)日：2019-12-26
申请号：US16543983
申请日：2019-08-19
Applicant: DENSO CORPORATION
Inventor： Yuuji KAKUYA , Tsutomu GOTO , Katsuyuki OMURA , Yukikazu SUZUKI , Shiro KOIDE
Abstract: A light-transmissive antenna includes: a transparent base made of a transparent insulating material; and an antenna pattern formed on the transparent base. The antenna pattern is made of a transparent electrically conductive film that is a film-like member having a predetermined transmittance and a predetermined electrical conductivity. The light-transmissive antenna includes a plurality of highly electrically conductive patterns arranged on the antenna pattern, each of the highly electrically conductive patterns being made of an electrically conducive member having a higher electrical conductivity than the transparent electrically conductive film and formed in a linear shape. Each of the plurality of highly electrically conductive patterns has a predetermined width set equal to or smaller than a value assumed as a resolution of human eyes.
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公开(公告)号：US20240322437A1
公开(公告)日：2024-09-26
申请号：US18734616
申请日：2024-06-05
Applicant: DENSO CORPORATION
Inventor： Tatsuya INAGAKI , Yuuji KAKUYA , Yohei NAKAKURA
CPC classification number: H01Q9/0421 , G01S13/32 , H01Q1/22 , H01Q9/045
Abstract: A conductive pattern, as an antenna, includes: a radiating element formed in an inverted F shape; and a feeding element for indirectly feeding power to the radiating element. The radiating element includes a main body, a short circuit part, and a powered part. The main body is a member longer than the short circuit part and the powered part. The short circuit part is connected to the main body at right angle at one end of the main body. The powered part extends from a middle of the main body in a direction perpendicular to the main body so as to have a predetermined distance from, for example, the short circuit part. The feeding element is formed to face the powered part below the powered part.
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