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公开(公告)号：US20200052396A1
公开(公告)日：2020-02-13
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：US20200049794A1
公开(公告)日：2020-02-13
申请号：US16654395
申请日：2019-10-16
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Toshiya SAKAI , Kazumasa SAKURAI , Asahi KONDO
Abstract: A radar system detects an object using radar waves and includes an antenna surface and a cover part. The antenna surface is provided with at least one array antenna arranged on a collinear arrangement straight line. The cover part covers the front of an antenna of the array antenna, where the front of the antenna is the side away from which radar waves are radiated with respect to the antenna surface as a boundary. The at least one array antenna is provided with at least one unit antenna where a plurality of antenna elements that radiate radar waves of the same phase are arranged in the same direction as the arrangement straight line. The unit antenna is arranged in a direction perpendicular to the arrangement straight line along the antenna surface. The cover part is configured such that the incidence angle of the radar waves is equal to or less than a Brewster angle.
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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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公开(公告)号：US20190302225A1
公开(公告)日：2019-10-03
申请号：US16091252
申请日：2017-04-06
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Kazushi KAWAGUCHI , Kazumasa SAKURAI , Toshiya SAKAI , Asahi KONDO
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：US20180366818A1
公开(公告)日：2018-12-20
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：US20220123460A1
公开(公告)日：2022-04-21
申请号：US17646032
申请日：2021-12-27
Applicant: DENSO CORPORATION
Inventor： Kazumasa SAKURAI , Toshiya SAKAI
IPC: H01Q1/42 , G01S7/02 , G01S7/03 , H01Q1/52 , G01S13/931
Abstract: A radar device comprises an antenna portion, a radome, and a housing. The antenna portion includes an antenna surface provided with one or more antennas, the antenna emitting a radio wave. The radome is made of a material allowing passage of the radio wave emitted by the antenna portion, and is disposed to face the antenna surface. The housing forms, together with the radome, a space for accommodating the antenna portion. The housing includes a peripheral edge which surrounds the antenna surface and is in contact with the radome, at least part of the peripheral edge includes a barrier part which protrudes outward from the radome along the antenna surface.
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公开(公告)号：US20200185824A1
公开(公告)日：2020-06-11
申请号：US16794695
申请日：2020-02-19
Applicant: DENSO CORPORATION
Inventor： Toshiya SAKAI , Kazumasa SAKURAI , Asahi KONDO
Abstract: A dielectric substrate has a first surface formed with a base plate and a second surface formed with an antenna part. The antenna part has one or more antenna patterns. An additional function part has a plurality of conductor patterns arranged around the antenna part. The plurality of conductor patterns resonate in one or more resonance directions to incident waves having an operating frequency of the antenna part, thereby generating emitted waves having polarized waves different from those of electromagnetic waves transmitted/received by the antenna part. For each of the resonance directions, at least one of the conductor patterns includes at least one line pattern having a width which is narrower than the total width of the conductor patterns in the direction perpendicular to the resonance direction.
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公开(公告)号：US20200185822A1
公开(公告)日：2020-06-11
申请号：US16794702
申请日：2020-02-19
Applicant: DENSO CORPORATION
Inventor： Toshiya SAKAI , Kazumasa SAKURAI , Asahi KONDO
Abstract: An antenna device includes a dielectric substrate having a first surface on which an antenna part is formed and a second surface on which a base plate is formed. The antenna part has one or more antenna patterns configured to act as radiating elements. The antenna patterns resonate in one or more resonance directions to incident waves having an operating frequency of the antenna part, thereby generating emitted waves having polarized waves different from those of transmitted/received waves which are transmitted/received by the antenna part. For each of the resonance directions, the antenna patterns include at least one line pattern having a width which is narrower than the total width of the antenna patterns in a direction perpendicular to the resonance direction.
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公开(公告)号：US20220131278A1
公开(公告)日：2022-04-28
申请号：US17647426
申请日：2022-01-07
Applicant: DENSO CORPORATION
Inventor： Kazumasa SAKURAI , Kazushi KAWAGUCHI
Abstract: A broadband planar array antenna in one aspect of the present disclosure includes: a multi-layer board; a plurality of patch antenna patterns; and a transmission line that connects the plurality of patch antenna patterns in series. The distance from the transmission line to an end of each of the plurality of patch antenna patterns along the polarization direction of a radiated radio wave is shorter with increasing proximity to a feeding point of the transmission line.
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10.发明申请公开(公告)号：US20200295451A1
公开(公告)日：2020-09-17
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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