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公开(公告)号：US20200212570A1
公开(公告)日：2020-07-02
申请号：US16810959
申请日：2020-03-06
发明人： Masahiro IZAWA
摘要： A dual band compatible antenna device includes a first branch electrode having a first electrode portion connected to a common electrode with a first adjustment element interposed between the first electrode portion and the common electrode and a second branch electrode having a second electrode portion connected to the common electrode with a second adjustment element interposed between the second electrode portion and the common electrode. The first electrode portion and the second electrode portion are provided on a line to have a length equal to or longer than ⅔ of an electrical length of the first branch electrode and the second branch electrode.
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公开(公告)号：US20220224015A1
公开(公告)日：2022-07-14
申请号：US17657367
申请日：2022-03-31
发明人： Shota TAKI , Masahiro IZAWA , Yasuo TANBO
IPC分类号： H01Q9/40
摘要： An antenna unit includes a feed point, a first antenna conductor extending from the feed point and having a width that expands as a distance from the feed point increases, a second antenna conductor facing a top end edge of the first antenna conductor with a gap formed therebetween, a first connection part connecting the top end edge of the first antenna conductor and the second antenna conductor via a capacitor, and a second connection part connecting the top end edge of the first antenna conductor and the second antenna conductor via an inductor or a zero-ohm resistor. A first connection point between the first connection part and the first antenna conductor is closer to a center of the top end edge of the first antenna conductor compared with a second connection point between the second connection part and the first antenna conductor.
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公开(公告)号：US20180294580A1
公开(公告)日：2018-10-11
申请号：US16003141
申请日：2018-06-08
摘要： An antenna element includes an antenna board, a radiation conductor including radiation portions including a top surface portion and being divided at positions corresponding to frequency bands and provided with respect to a first feeding point in plan view of the antenna board, through-conductors penetrating the antenna board at respective positions of end portions of the top surface portion in a thickness direction, and bottom surface electrodes provided on a bottom surface of the antenna board opposite the end portions of the top surface portion, and connected to the top surface portion via the through-conductors.
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公开(公告)号：US20240170838A1
公开(公告)日：2024-05-23
申请号：US18426896
申请日：2024-01-30
发明人： Masahiro IZAWA
CPC分类号： H01Q1/48 , H01Q9/0407
摘要： An antenna device includes a ground electrode on rear sides of first and second antenna elements. The ground electrode includes ground layers and respectively having slits located between the first and second antenna elements as viewed in the thickness direction of the ground electrode. A first edge on a side of the first antenna element of the slit includes a first portion and a second portion closer to a second edge on a side of the second antenna element than the first portion. A fourth edge on the side of the second antenna element of the slit includes a third portion closer to the second antenna element than the first portion and includes a fourth portion closer to a third edge on the side of the first antenna element than the third portion and closer to the first antenna element than the second portion.
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公开(公告)号：US20230420833A1
公开(公告)日：2023-12-28
申请号：US18328019
申请日：2023-06-02
发明人： Masahiro IZAWA
摘要： An antenna module includes a main body, an antenna, and a shield electrode. The antenna includes an antenna electrode that covers a side surface of the main body. The shield electrode covers a top surface of the main body without being in contact with the antenna electrode. The main body includes a substrate, a plurality of electronic components and, a first dielectric layer, a second dielectric layer, at least one first ground connection electrode, and at least one second ground connection electrode. The electronic components and are mounted on the substrate. The first dielectric layer covers a first main surface of the substrate. The second dielectric layer covers a second main surface of the substrate. The at least one first ground connection electrode is in the form of a column extending through the first dielectric layer and connects the substrate to the shield electrode.
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公开(公告)号：US20230223690A1
公开(公告)日：2023-07-13
申请号：US18184061
申请日：2023-03-15
发明人： Yasuo TANBO , Masahiro IZAWA
CPC分类号： H01Q5/314 , H01Q1/48 , H01Q1/521 , H01Q1/24 , H01Q13/106
摘要： An antenna module (10) includes a ground electrode (30) in which a slit (33) is formed in such a manner as to form an opening along a perimeter of the ground electrode, a first antenna (110) and a second antenna (110A) arranged in or on the ground electrode (30), and a coupling reducing electrode (200) connected to the ground electrode (30) within the slit (33). The slit (33) is formed on a path leading from the first antenna (110) to the second antenna (110A) along the perimeter of the ground electrode. The coupling reducing electrode (200) includes a first conductor (220) having a length corresponding to a first frequency and a second conductor (230) having a length corresponding to a second frequency, which is higher than the first frequency.
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公开(公告)号：US20230387603A1
公开(公告)日：2023-11-30
申请号：US18448506
申请日：2023-08-11
发明人： Ryo KOMURA , Masahiro IZAWA
CPC分类号： H01Q19/02 , H01Q1/2291 , H01Q1/48 , H01Q1/085
摘要： An antenna device includes: a ground electrode plate; one or more first radiating electrode plates which face the ground electrode plate; a second radiating electrode plate which lies between the ground electrode plate and the one or more first radiating electrode plates; one or more first feeder lines which are connected to the one or more first radiating electrode plates; a second feeder line which is not connected to the one or more first feeder lines but is connected to the second radiating electrode plate; and a ground line which does not connect the one or more first radiating electrode plates to the ground electrode plate but connects the second radiating electrode plate to the ground electrode plate. The one or more first radiating electrode plates lie inside the second radiating electrode plate as viewed from a thickness direction of the ground electrode plate.
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公开(公告)号：US20220416425A1
公开(公告)日：2022-12-29
申请号：US17901018
申请日：2022-09-01
发明人： Koji KAMADA , Kunihiro KOMAKI , Masahiro IZAWA , Ryo KOMURA
摘要： An element assembly has a structure in which insulator layers including first and second insulator layers are laminated in an up-down direction. The first insulator layer is above the second insulator layer. A radiant conductor layer is on an upper surface of the first insulator layer. A first capacitance defining portion includes a first interlayer connection conductor passing through one or more of the insulator layers in the up-down direction. The first interlayer connection conductor is electrically connected to the radiant conductor layer. The radiant conductor layer, a ground conductor, and the first capacitance defining portion define and function as a patch antenna. When the first interlayer connection conductor is electrically connected to the radiant conductor layer, a distance from a lower end of the first interlayer connection conductor to the ground conductor in the up-down direction is shorter than a distance from the radiant conductor layer to the ground conductor in the up-down direction.
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公开(公告)号：US20190157773A1
公开(公告)日：2019-05-23
申请号：US16251618
申请日：2019-01-18
摘要： An antenna (101) includes a grounded conductive foil (110) disposed on a module substrate (140), a first conductive foil (111), and a second conductive foil (112). The first conductive foil (111) and the second conductive foil (112) are disposed on the module substrate (140), are elongated, and do not overlap with the grounded conductive foil (110) in a plan view of the module substrate (140). The first conductive foil (111) has one end supplied with an antenna signal and the other end that is open. The second conductive foil (112) has one end connected to the grounded conductive foil (110) and the other end that is open. A wireless module (120) includes a circuit unit (130) including a communication circuit and provided to the module substrate (140) on which the antenna (101) is formed.
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公开(公告)号：US20180233817A1
公开(公告)日：2018-08-16
申请号：US15952977
申请日：2018-04-13
发明人： Masahiro IZAWA
CPC分类号： H01Q1/48 , H01Q1/2291 , H01Q1/38 , H01Q1/46 , H01Q5/35 , H01Q5/378 , H01Q19/005 , H01Q21/062 , H01Q21/065 , H01Q21/28
摘要： A first ground conductor is disposed in or on a main substrate. In or on an antenna module, a first antenna and a second ground conductor operating as a ground electrode of the first antenna are disposed. A coaxial cable including a core wire and an outer conductor feeds power to the first antenna. The outer conductor is electrically connected to the first ground conductor at a first position, and is connected to the second ground conductor at a second position. A second antenna including a feed element and a parasitic element operates at a lower frequency than the operating frequency of the first antenna. The second ground conductor and a part of the outer conductor from the first position to the second position also serve as the parasitic element of the second antenna.
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