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公开(公告)号：US11962289B2
公开(公告)日：2024-04-16
申请号：US17172431
申请日：2021-02-10
发明人： Makoto Inoue , Hideyuki Sekine
CPC分类号： H03H9/6453 , H03H7/0115 , H03H9/0576 , H03H2001/0085 , H03H9/725
摘要： A filter includes first and second signal terminals, a filter circuit connected between the first and second signal terminals, a substrate having first and second surfaces, the first and second signal terminals being located on the first surface, a part of the filter circuit being located at a side of the second surface, a line located closer to the first surface than the filter circuit in the substrate, a first end of the line being connected to one of the first and second signal terminals, and a ground terminal that is located on the first surface and to which a second end of the line is connected, an area of a region where the line overlaps with the ground terminal being greater than an area of a region where the line overlaps with the one of the first and second signal terminals when the substrate is viewed in plan view.
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公开(公告)号：US11888458B2
公开(公告)日：2024-01-30
申请号：US17847565
申请日：2022-06-23
发明人： Makoto Inoue , Naoto Kobayashi , Hideyuki Sekine , Jaeho Jeong
CPC分类号： H03H7/06 , H03H7/0115 , H03H7/0138 , H03H9/15 , H03H9/542 , H03H9/70
摘要： A filter includes an input terminal, an output terminal, a ground terminal, a first capacitor and a second capacitor that are connected in series between the input terminal and the output terminal, a capacitive element that is connected in parallel to the first capacitor and the second capacitor between the input terminal and the output terminal, and has a Q factor that is smaller than a Q factor of the first capacitor and is smaller than a Q factor of the second capacitor, and an inductor that has a first end and a second end, the first end being coupled to a node that is provided between the first capacitor and the second capacitor and that is coupled to the capacitive element through the first capacitor and the second capacitor, the second end being coupled to the ground terminal.
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公开(公告)号：US11264968B2
公开(公告)日：2022-03-01
申请号：US16721268
申请日：2019-12-19
发明人： Hideyuki Sekine , Hosung Choo , Makoto Inoue
IPC分类号： H03H9/05 , H05K1/16 , H05K1/11 , H03H9/64 , H05K1/02 , H03H9/72 , H03H3/08 , H05K3/34 , H05K3/40 , H05K3/36 , H03H9/02 , H03H9/145 , H01L41/047
摘要： A high-frequency device includes: a circuit substrate including dielectric layers that are stacked, wiring patterns located on at least one of the dielectric layers, and a passive element formed of at least one of the wiring patterns, the circuit substrate having a first surface that is a surface of an outermost dielectric layer in a stacking direction of the dielectric layers; a terminal for connecting the high-frequency device to an external circuit, the terminal being located on the first surface and electrically connected to the passive element through a first path in the circuit substrate; and an acoustic wave element located on the first surface and electrically connected to the passive element through a second path in the circuit substrate.
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公开(公告)号：US11881832B2
公开(公告)日：2024-01-23
申请号：US17847522
申请日：2022-06-23
发明人： Makoto Inoue , Jaeho Jeong , Hideyuki Sekine , Naoto Kobayashi
CPC分类号： H03H7/0115 , H03H7/46 , H03H2001/0085
摘要： A filter includes an input terminal, an output terminal, a first ground terminal, a second ground terminal, a first inductor having a first end coupled to a first node in a path between the input terminal and the output terminal and a second end coupled to a second node, a second inductor having a first end coupled to the second node and a second end coupled to the first ground terminal, and a third inductor having a first end coupled to the second node and a second end coupled to the second ground terminal.
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公开(公告)号：US10972067B2
公开(公告)日：2021-04-06
申请号：US16719260
申请日：2019-12-18
发明人： Jaeho Jeong , Shuei Hashimoto , Naoyuki Tasaka , Sachiko Tanaka , Makoto Inoue
IPC分类号： H03H7/01
摘要： A filter includes: a substrate; input and output terminals located on the substrate; a resonant circuit located in a series pathway between the input and output terminals; a first component including a first inductor, which is electrically connected between a first node in the series pathway and a ground, and mounted in a first region on the substrate; a second component including a second inductor, which is electrically connected between a second node different from the first node in the series pathway and a ground, and mounted in a second region different from the first region on the substrate; and a third component including an acoustic wave resonator, which is electrically connected between a third node between the first and second nodes in the series pathway and a ground, and mounted in a third region between the first and second regions on the substrate.
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公开(公告)号：US10700666B2
公开(公告)日：2020-06-30
申请号：US15868228
申请日：2018-01-11
发明人： Sachiko Tanaka , Makoto Inoue , Naoyuki Tasaka
IPC分类号： H03H9/54 , H03H9/72 , H03H9/64 , H03H9/17 , H03H7/01 , H03H9/60 , H03H9/05 , H03H9/56 , H03H9/70 , H05K1/16 , H05K1/18 , H05K5/06
摘要： A filter circuit includes: a first element that is a first capacitor or a first inductor connected in series between input and output terminals; a second element that is connected in parallel to the first element between the input and output terminals, is a second inductor when the first element is the first capacitor, and is a second capacitor when the first element is the first inductor; a third element that is connected in parallel to the first element and in series with the second element between the input and output terminals, is a third inductor when the first element is the first capacitor, and is a third capacitor when the first element is the first inductor; and an acoustic wave resonator having a first end coupled to a first node between the second element and the third element and a second end coupled to a ground terminal.
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