公开(公告)号：US20240072754A1

公开(公告)日：2024-02-29

申请号：US18456835

申请日：2023-08-28

Applicant: TDK CORPORATION

Inventor： Masahiro TATEMATSU ,  Yuta ASHIDA ,  Shuhei SAWAGUCHI ,  Keigo SHIBUYA ,  Tomonori TERUI ,  Tetsuzo GOTO

IPC: H03H7/01

CPC classification number: H03H7/1775 ,  H03H7/0115 ,  H03H2001/0085

Abstract: In a multilayer filter, first and second resonant circuits are arranged in a direction crossing a stacking direction of a plurality of dielectric layers. An input/output portion includes an input/output port group including an unbalanced port and a pair of balanced ports or an input/output port group including two pairs of balanced ports. The second resonant circuit includes an inductor conductor, a first capacitor conductor, and a second capacitor conductor. The inductor conductor includes first and second ends. The first capacitor conductor is connected to the first end. The second capacitor conductor is connected to the second end. The second dielectric layer has a dielectric constant lower than that of the first dielectric layer. The first and second capacitor conductors are provided in the first dielectric layer. At least a part of the inductor conductor is provided in the second dielectric layer.

公开(公告)号：US20240291458A1

公开(公告)日：2024-08-29

申请号：US18585924

申请日：2024-02-23

Applicant: TDK CORPORATION

Inventor： Yuta ASHIDA ,  Tomonori TERUI ,  Masahiro TATEMATSU ,  Shuhei SAWAGUCHI ,  Keigo SHIBUYA ,  Tetsuzo GOTO

IPC: H03H7/01 ,  H03H7/21

CPC classification number: H03H7/0115 ,  H03H7/21

Abstract: An electronic component includes a filter, a first phase-shift circuit, a second phase-shift circuit, and a stack. The first phase-shift circuit includes a first inductor provided in a first path connecting an unbalanced terminal and a first balanced terminal, and a first capacitor provided between the first path and a ground in a circuit configuration. The second phase-shift circuit includes a second capacitor provided in a second path connecting the unbalanced terminal and a second balanced terminal, and a second inductor provided between the second path and the ground in the circuit configuration. The first inductor and the second inductor are arranged in a direction parallel to a stacking direction.

公开(公告)号：US20240048112A1

公开(公告)日：2024-02-08

申请号：US18361410

申请日：2023-07-28

Applicant: TDK CORPORATION

Inventor： Yuta ASHIDA ,  Shuhei SAWAGUCHI ,  Masahiro TATEMATSU ,  Keigo SHIBUYA ,  Tomonori TERUI ,  Tetsuzo GOTO

IPC: H03H7/01

CPC classification number: H03H7/0115 ,  H03H7/0161 ,  H03H2001/0085

Abstract: In a multilayer filter, first to fourth resonant circuits are connected to an input/output portion. The input/output portion includes an input/output port group including an unbalanced port and a pair of balanced ports or an input/output port group including two pairs of balanced ports. Each of the first to fourth resonant circuits includes an inductor conductor and first and second capacitor conductors. The inductor conductor includes first and second ends. The first capacitor conductor is connected to the first end. The second capacitor conductor is connected to the second end. The second and third resonant circuits are magnetically coupled to each other. The second and third resonant circuits are arranged between the first resonant circuit and the fourth resonant circuit in a first direction. Each of first and second electrodes of a jump capacitor conductor is connected to the inductor conductors of the first and fourth resonant circuits.