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公开(公告)号：US09692132B2
公开(公告)日：2017-06-27
申请号：US14775583
申请日：2014-03-12
Applicant: DENSO CORPORATION
Inventor： Kazushi Kawaguchi , Yuji Sugimoto , Asahi Kondo , Masanobu Yukumatsu
CPC classification number: H01Q9/0407 , H01Q1/28 , H01Q1/32 , H01Q15/008 , H01Q21/065
Abstract: An antenna apparatus includes a dielectric substrate, a ground plate, a patch antenna provided with a patch radiating element, and a plurality of EBGs (Electromagnetic Band Gaps). The EBGs are composed of patch-shaped patterns formed on a surface of the substrate and connecting conductors electrically connecting the patch-shaped patterns and the ground plate. Each EBG is arranged to provide an EBG absent region having no EBG on the surface of the substrate. The patch radiating element is arranged within the EBG absent region. The EBG absent region is formed such that distances (absent distances) in a dominant polarized wave direction changes into a plurality of types depending on the position on a vertical patch line, where the distances range, to the boundary of the region, from an arbitrary position on the virtual patch line which is perpendicular to the dominant polarized wave direction of the patch antenna.
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公开(公告)号：US20170155190A1
公开(公告)日：2017-06-01
申请号：US15322850
申请日：2015-07-01
Applicant: DENSO CORPORATION
Inventor： Kazushi Kawaguchi , Kazumasa Sakurai , Asahi Kondo
CPC classification number: H01Q1/42 , H01Q1/3233 , H01Q9/0407 , H01Q9/0485 , H01Q13/28
Abstract: An antenna apparatus includes: an antenna that performs either transmission or reception of electromagnetic waves having a predetermined frequency; a case provided with a mounting surface on a predetermined surface, mounting the antenna on the mounting surface; a radome formed of a transmissive material allowing the electromagnetic waves to pass therethrough, mounted on the mounting surface so as to cover the antenna. A groove portion is formed on the mounting surface. The radome has a thickness corresponding to a value of ½ wavelength of the electromagnetic waves propagating therethrough multiplied by m, where m is positive integer number. The groove portion is formed in a direction forming a predetermined angle with respect to a normal direction of an opening surface of the antenna, to have a depth defined as ½ wavelength of the electromagnetic waves propagating in the groove portion multiplied by n, where n is positive integer number.
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公开(公告)号：US20150289419A1
公开(公告)日：2015-10-08
申请号：US14440437
申请日：2013-11-05
Applicant: DENSO CORPORATION
Inventor： Takuya Kouya , Masanobu Yukumatsu , Asahi Kondo
IPC: H05K9/00
CPC classification number: H05K9/0009 , H01P1/20345 , H01P1/212 , H05K9/0022 , H05K9/0037
Abstract: A high-frequency module includes a substrate, an integrated circuit mounted to the substrate, a cylindrical shield enclosing the integrated circuit to block radio waves, a casing provided on an opposite side of the substrate relative to the shield to block radio waves, and a choke portion provided in an inner wall of the casing, the inner wall being opposed to the shield, or provided in the substrate, with a predetermined gap being formed relative to the shield, to create an antiphase in radio waves having a predetermined frequency emitted from the integrated circuit into a space above the substrate.
Abstract translation: 高频模块包括基板，安装到基板的集成电路，封闭集成电路以阻挡无线电波的圆柱形屏蔽件，设置在基板相对于屏蔽件的相对侧以阻挡无线电波的壳体，以及 阻塞部分设置在壳体的内壁中，内壁与屏蔽体相对或设置在基板中，具有相对于屏蔽件形成的预定间隙，以产生具有从 集成电路进入衬底上方的一个空间。
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4.发明授权公开(公告)号：US11637366B2
公开(公告)日：2023-04-25
申请号：US16888275
申请日：2020-05-29
Applicant: DENSO CORPORATION
Inventor： Kazumasa Sakurai , Yuji Sugimoto , Kazushi Kawaguchi , Asahi Kondo
IPC: H01Q1/42 , G01S7/02 , G01S7/03 , H01Q1/32 , G01S13/931
Abstract: A radar apparatus includes transmitting means, receiving means, target detection means, and a cover member. The cover member is positioned opposite at least one of the transmitting means and the receiving means, such as to cover at least one of the transmitting means and the receiving means. The cover member is provided with a first face which is positioned opposite at least one of the transmitting means and the receiving means, and a second face which is on an opposite side from the first face and is not parallel to the first face.
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公开(公告)号：US11575196B2
公开(公告)日：2023-02-07
申请号：US16061836
申请日：2016-12-15
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Kazushi Kawaguchi , Kazumasa Sakurai , Toshiya Sakai , Asahi Kondo
Abstract: An antenna device includes a dielectric substrate, a ground plate arranged on a first surface of the dielectric substrate, an antenna part arranged on a second surface of the dielectric substrate, and a reflecting part. The reflecting part is arranged around the antenna part and has a plurality of conductor patches each functioning as a reflecting plate. The plurality of conductor patches form a plurality of blocks aligned along a predetermined block arrangement direction. The plurality of blocks are configured such that phases of reflected waves at an operating frequency are different for each of the blocks and phase differences of reflected waves between adjacent blocks are non-uniformly different for each of the adjacent blocks.
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Patent Agency Ranking
公开(公告)号：US11079472B2
公开(公告)日：2021-08-03
申请号：US16931337
申请日：2020-07-16
Applicant: DENSO CORPORATION
Inventor： Kazushi Kawaguchi , Kazumasa Sakurai , Toshiya Sakai , Asahi Kondo
IPC: G01S7/03 , G01S13/931 , H01Q9/04 , H01Q15/14 , H01Q21/06
Abstract: An antenna apparatus includes a dielectric substrate, a base plate, an antenna unit, and a reflecting unit. A plurality of conductor patches are structured to resonate, at an operating frequency of the antenna unit, in a resonating direction which is different from a polarization direction Dan of a radio wave transmitted and received by the antenna unit.
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公开(公告)号：US10566704B2
公开(公告)日：2020-02-18
申请号：US15501969
申请日：2015-07-14
Applicant: DENSO CORPORATION
Inventor： Kazushi Kawaguchi , Asahi Kondo
Abstract: A surface current suppression filter (1) is a bandstop filter that suppresses propagation of a surface current in a predetermined propagation direction on a dielectric substrate (2). The filter (1) is configured such that a plurality of electromagnetic band gap (EBG) rows (10, 20) are arrayed in an array direction. Each EBG row (10, 20) has at least one EBG (11, 21) that is arrayed in a perpendicular direction orthogonal to the array direction. Cutoff characteristics of a first EBG (11) in the first EBG row (10) differs from cutoff characteristics of a second EBG (12) in the second EBG row (20).
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公开(公告)号：US20160013557A1
公开(公告)日：2016-01-14
申请号：US14764137
申请日：2013-12-11
Applicant: DENSO CORPORATION
Inventor： Kazushi Kawaguchi , Yuji Sugimoto , Masanobu Yukumatsu , Asahi Kondo
IPC: H01Q9/04
CPC classification number: H01Q9/0407 , H01Q1/38 , H01Q1/52 , H01Q17/00 , H01Q21/08
Abstract: An antenna device 1 has a dielectric substrate 2, a patch antenna 5 and electric power absorbing passive elements 21, 24 formed on a surface of the dielectric substrate. Each electric power absorbing passive element 21, 24 is formed between the patch antenna 5 and an edge portion in a polarized wave direction of the dielectric substrate 2. The electric power absorbing passive elements 21, 24 absorb a part of electric power received by the patch antenna 5. This makes it possible to suppress a surface current flowing to the edge portions of the dielectric substrate on a conductive plate (a front-surface conductor plate 3 or a back surface conductor plate 4) on the dielectric substrate.
Abstract translation: 天线装置1具有电介质基板2，贴片天线5和形成在电介质基板的表面上的电力吸收无源元件21,24。 每个电力吸收无源元件21,24形成在贴片天线5与电介质基板2的偏振波方向的边缘部分之间。吸收电力的无源元件21,24吸收由贴片接收的电力的一部分 由此，能够抑制电介质基板上的导体板（前面导体板3或背面导体板4）上的电介质基板的边缘部分流过的表面电流。
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公开(公告)号：US11121461B2
公开(公告)日：2021-09-14
申请号：US16659914
申请日：2019-10-22
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Toshiya Sakai , Kazumasa Sakurai , Asahi Kondo
Abstract: An antenna device includes a dielectric substrate, a ground plane, an antenna unit, and an additional functional unit. The dielectric substrate includes a plurality of pattern formation layers. The ground plane is formed on a first pattern formation layer included in the plurality of pattern formation layers, and acts as an antenna grounding surface. The antenna unit is formed on a pattern formation layer that is included in the plurality of pattern formation layers and that is different from the first pattern formation layer. The antenna unit includes one or more antenna patterns configured to act as radiation elements. The additional functional unit includes one or more parasitic patterns provided on a propagation path for a surface propagating over the dielectric substrate, and causes the surface wave to generate a radiation wave with polarization different from polarization of a radio wave transmitted and received by the antenna unit.
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公开(公告)号：US10578711B2
公开(公告)日：2020-03-03
申请号：US15529377
申请日：2015-09-28
Applicant: DENSO CORPORATION
Inventor： Kento Nakabayashi , Asahi Kondo
IPC: G01S7/40
Abstract: A radar apparatus transmits a radar wave, with a control parameter being set to a desired value, and acquires an initial transmission level from outside the radar apparatus, the initial transmission level being a result of measurement of a transmission level of the radar wave. At the same time, the radar apparatus receives a delayed wave of the radar wave from outside the radar apparatus, and acquires an initial reception level which is a result of measurement of a reception level of the delayed wave. The radar apparatus then sets a target reception level according to a preset target transmission level, and the initial transmission level and the initial reception level acquired. The radar apparatus then repeats update of the control parameter and measurement of the reception level until the reception level coincides with the target reception level.
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