公开(公告)号：US20180145651A1

公开(公告)日：2018-05-24

申请号：US15801744

申请日：2017-11-02

Applicant: TDK CORPORATION

Inventor： Manabu KITAMI

IPC: H03H1/00 ,  H03H7/01

Abstract: A multilayer filter (1) includes an element body (2) formed by stacking a plurality of insulator layers (10), and an input terminal TIN (5), a first output terminal TOUT1 (9), and a ground terminal G (4, 8) arranged on outer surfaces of the element body (2), a first LC resonance circuit (RC2) provided in a line (S1) connecting the input terminal TIN (5) to the first output terminal TOUT1 (9) and including a first inductor (L2) and a first capacitor (C2), and an open inductor (LOPEN) having one end connected to the ground terminal (G) and the other end open are provided in the element body (2), and the open inductor (LOPEN) is arranged to face the first output terminal TOUT1 (9) or the first inductor (L2).

公开(公告)号：US20180316330A1

公开(公告)日：2018-11-01

申请号：US15956943

申请日：2018-04-19

Applicant: TDK CORPORATION

Inventor： Manabu KITAMI ,  Noriyuki HIRABAYASHI

IPC: H03H7/01 ,  H03H1/00 ,  H01F27/28 ,  H01F27/40 ,  H01G4/40

CPC classification number: H03H7/0115 ,  H01F17/0013 ,  H01F27/2804 ,  H01F27/40 ,  H01F2017/0026 ,  H01F2027/2809 ,  H01G4/30 ,  H01G4/40 ,  H03H1/00 ,  H03H7/1708 ,  H03H7/1758 ,  H03H7/1766 ,  H03H2001/0085

Abstract: A low-pass filter includes first and second input/output ports, first and second LC parallel resonators connected in series and provided between the first and second input/output ports, and first to third paths. The first path includes a first LC series resonator and connects a first end of the first LC parallel resonator closest to the first input/output port to a ground. The second path includes a second LC series resonator and connects a second end of the second LC parallel resonator closest to the second input/output port to the ground. The third path includes a third-path capacitor and connects a connection point between the first and second LC parallel resonators to the ground.

公开(公告)号：US20170222616A1

公开(公告)日：2017-08-03

申请号：US15386413

申请日：2016-12-21

Applicant: TDK CORPORATION

Inventor： Manabu KITAMI ,  Kazuhiro TSUKAMOTO

IPC: H03H7/46 ,  H03H7/01

CPC classification number: H03H7/46 ,  H03H7/0115 ,  H03H7/463

Abstract: A branching filter includes a first filter provided between a common port and a first signal port, and a second filter provided between the common port and a second signal port. The branching filter further includes a connection path and a first capacitor. The connection path includes a first inductor, and connects the common port and the first filter. The first capacitor is provided between the connection path and the ground. The second filter is connected to the connection path. The first capacitor is connected to the first inductor at a first branch point located at any position in the first inductor.

公开(公告)号：US20160352303A1

公开(公告)日：2016-12-01

申请号：US15082513

申请日：2016-03-28

Applicant: TDK CORPORATION

Inventor： Masanori TSUTSUMI ,  Kazuhiro TSUKAMOTO ,  Manabu KITAMI ,  Toshiyuki TAKAMI ,  Shohei KUSUMOTO ,  Noriyuki HIRABAYASHI

IPC: H03H7/42

CPC classification number: H03H7/42

Abstract: A multilayer electronic component includes a stack and a balun. The stack includes a plurality of stacked dielectric layers and conductor layers. The balun is formed using the stack. The balun includes an unbalanced transmission line and first to fourth balanced transmission lines. The unbalanced transmission line includes a first line portion and a second line portion connected in series. The first and second balanced transmission lines are configured to be electromagnetically coupled to the first line portion. The third and fourth balanced transmission lines are configured to be electromagnetically coupled to the second line portion.

Abstract translation: 多层电子部件包括堆叠和​​平衡 - 不平衡转换器。 堆叠包括多个堆叠的电介质层和导体层。 平衡 - 不平衡变换器使用堆叠形成。 平衡 - 不平衡转换器包括不平衡传输线和第一至第四平衡传输线。 不平衡传输线包括串联连接的第一线部分和第二线部分。 第一和第二平衡传输线被配置为与第一线路部分电磁耦合。 第三和第四平衡传输线被配置为与第二线路部分电磁耦合。