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公开(公告)号：US20240145924A1
公开(公告)日：2024-05-02
申请号：US18409594
申请日：2024-01-10
申请人： AGC Inc.
发明人： Yusuke Kato , Shoichi Takeuchi , Hideaki Shoji , Toshiki Sayama
CPC分类号： H01Q9/0428 , H01Q1/325
摘要： An antenna and an antenna apparatus for vehicle that can achieve reduction in size are provided. The antenna includes a dielectric body, a radiation conductor disposed on a first principal surface side of the dielectric body, and a ground conductor disposed on a second principal surface side of the dielectric body. The ground conductor is a planar conductor disposed within a rectangular region having a length LG1 in a first direction and a length LG2 in a second direction. When the ground conductor is divided into a first region and a second region, the ground conductor includes a slit that starts extending toward the inside of the ground conductor starting from an outer edge of the ground conductor in the first region.
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公开(公告)号：US11522278B2
公开(公告)日：2022-12-06
申请号：US16918427
申请日：2020-07-01
申请人： AGC Inc.
发明人： Hideaki Shoji , Shoichi Takeuchi
摘要： An antenna device includes a first conductor plate including a first end portion and a second end portion, the first conductor plate being provided with a first feeding portion between the first end portion and the second end portion, a second conductor plate including a third end portion connected to the first feeding portion, a fourth end portion located at a position away from the first conductor plate, and a plate surface of which width in a direction parallel to the first conductor plate increases with a distance from the third end portion toward the fourth end portion, and a third conductor plate including a fifth end portion capacitively coupling with the fourth end portion, a sixth end portion connected, on a same side as the first end portion with respect to the first feeding portion, to the first conductor plate, and a counter portion opposite the plate surface.
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公开(公告)号：US11804649B2
公开(公告)日：2023-10-31
申请号：US17239229
申请日：2021-04-23
申请人： AGC Inc. , NTT DOCOMO, INC.
发明人： Minoru Inomata , Tetsuro Imai , Hideaki Shoji , Shoichi Takeuchi
CPC分类号： H01Q1/3233 , H01Q21/0037 , H01Q21/28
摘要： An antenna system for a vehicle includes a plurality of antenna sets provided on or in proximity to a dielectric arranged on front and rear sides or on right and left sides of the vehicle, or arranged on both thereof, wherein a first antenna set includes first and second antennas, a second antenna set includes third and fourth antennas, a third antenna set includes fifth and sixth antennas, a fourth antenna set includes seventh and eighth antennas, each of the first, third, fifth, and seventh antennas has a higher antenna gain for transmitting and receiving a horizontally polarized wave than transmitting and receiving a vertically polarized wave, and each of the second, fourth, sixth, and eighth antennas has a higher antenna gain for transmitting and receiving the vertically polarized wave than transmitting and receiving the horizontally polarized wave.
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公开(公告)号：US11171404B2
公开(公告)日：2021-11-09
申请号：US16857543
申请日：2020-04-24
申请人： AGC Inc.
发明人： Shoichi Takeuchi , Naoki Hashimoto , Hideaki Shoji
摘要： An antenna includes a flat conductor, and the flat conductor includes a first slot extending in a first direction, a second slot connected to the first slot and extending in a second direction, a third slot connected to the first slot and including another end that is open through an outer edge of the conductor, the third slot extending to one side of the first slot opposite from the second slot, and a fourth slot connected to the second slot, the fourth slot extending to one side of the second slot opposite from the first slot, wherein the third slot has a wide portion, and the fourth slot has a wide portion, and the outer edge includes an inclined portion inclined with respect to a virtual line that passes through the another end of the third slot and that is perpendicular to a direction in which the third slot extends.
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公开(公告)号：US20240258681A1
公开(公告)日：2024-08-01
申请号：US18290348
申请日：2022-05-10
申请人： AGC Inc.
发明人： Shoichi Takeuchi , Hideaki Shoji , Toshiki Sayama , Yusuke Kato
CPC分类号： H01Q1/1271 , H01Q1/3275 , H01Q1/48 , H01Q9/0414
摘要： Provided is a vehicle antenna system that is able to efficiently receive circularly polarized signals from the zenith direction. A vehicle antenna system (100) is provided with window glass (30) for a vehicle (20) and an antenna element (40) that is able to receive signals of a predetermined frequency band. The antenna element (40) is provided on a first principal plane of a dielectric substrate (43), and includes a radiating conductor (41) that is able to receive circularly polarized signals of a first frequency, and a grounding conductor (44) positioned opposite the radiating conductor (41) via the dielectric substrate (43). The normal direction of the first principal plane is less than or equal to 45° relative to the vertical direction, and the radiating conductor (41) is positioned away from the inner surface of the window glass (30) via the dielectric layer (60) in the direction of the vehicle interior.
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公开(公告)号：US20240322435A1
公开(公告)日：2024-09-26
申请号：US18678348
申请日：2024-05-30
申请人： AGC Inc.
发明人： Toshiki SAYAMA , Hideaki Shoji , Yusuke Kato
CPC分类号： H01Q9/0414 , H01Q9/40 , H01Q13/08 , H01Q1/32
摘要： An antenna includes a radiation plate 56 equipped with a radiation surface that radiates radio waves and a feed point that is a location supplied with power from a transmission line. When looking at the radiation plate along a horizontal direction, the feed point is provided at a position separated from a centroid of the radiation plate by a distance A. When looking along a thickness direction of the radiation plate, locations between an end portion of the transmission line connected to the feed point and an intersection portion intersecting with a peripheral edge portion of the conductor plate, overlap in the thickness direction of the radiation plate with a specified area between a third straight line and a fourth straight line.
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公开(公告)号：US20240275020A1
公开(公告)日：2024-08-15
申请号：US18635194
申请日：2024-04-15
申请人： AGC Inc.
发明人： Shoichi TAKEUCHI , Yusuke Kato , Toshiki Sayama , Hideaki Shoji
CPC分类号： H01Q1/1271 , H01Q13/106
摘要： A planar antenna comprising a slot formed in a flat conductor, wherein the slot includes a first slot extending in a first direction between a first feeding point and a second feeding point, a second slot extending in a second direction different from the first direction from an end portion of the first slot, a third slot extending in a fourth direction opposite to the second direction from an end portion of the first slot in a third direction opposite to the first direction, reaching an open end in the fourth direction, and a J-shaped slot extending from an end portion of the second slot in the second direction to an open end open in the first direction, and wherein a slot width at an open end of the J-shaped slot is wider than a slot width at the end portion of the second slot in the second direction.
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公开(公告)号：US12003021B2
公开(公告)日：2024-06-04
申请号：US17322153
申请日：2021-05-17
申请人： AGC Inc.
发明人： Shoichi Takeuchi , Hideaki Shoji
CPC分类号： H01Q1/325 , B32B7/12 , B32B17/10165 , B32B2457/00 , B32B2605/00
摘要： An antenna system includes a glass plate, a resin layer, and an antenna, wherein a predetermined frequency of 3 GHz or greater is defined as F, a transmission coefficient S21 of the glass plate concerning an incident wave of F is defined as S21G, S21 of a laminate concerning the F is defined as S21GR, a frequency closest to F at which S21 of the glass plate becomes a maximum is defined as FP, S21 of the glass plate concerning an incident wave of FP is defined as S21GP, a frequency closest to F among frequencies of incident waves at which S21 of the glass plate becomes a minimum is defined as FV, and S21 of the glass plate concerning an incident wave of FV is defined as S21GV, and wherein a thickness of the resin layer is configured such that: S21GR−S21G≥(S21GP−S21GV)×0.2.
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