公开(公告)号：US20240014535A1

公开(公告)日：2024-01-11

申请号：US18371589

申请日：2023-09-22

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hitoshi TADA ,  Makoto MATSUDAIRA ,  Takashi NIHEI ,  Masashi ARAI

IPC: H01P1/20 ,  H01P3/16

CPC classification number: H01P1/2002 ,  H01P3/16

Abstract: A filter includes a multilayer body, plate electrodes, resonators, shield conductors, and connecting conductors. The multilayer body includes dielectric layers. The plate electrodes are spaced apart from one another in the multilayer body in a lamination direction thereof. The resonators are between the plate electrodes and extend in a first direction orthogonal or substantially orthogonal to the lamination direction. The shield conductors are on lateral surfaces of the multilayer body and are connected to the plate electrodes. The connecting conductors connect the resonators to the plate electrodes. The resonators are side by side in a second direction in the multilayer body. The resonators each include first and second ends. The first ends are connected to the shield conductor, and the second ends are spaced away from the shield conductor.

公开(公告)号：US20230420819A1

公开(公告)日：2023-12-28

申请号：US18367518

申请日：2023-09-13

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takashi NIHEI

IPC: H01P1/205

CPC classification number: H01P1/2053

Abstract: A filter device includes a laminate body including dielectric layers, plate electrodes, resonators, shield conductors, and a capacitive electrode. The plate electrodes are spaced apart from each other in a lamination direction in the laminate body. The resonators are between the plate electrodes and extend in a first direction. The shield conductors are on side surfaces, respectively, that are orthogonal or substantially orthogonal to the first direction in the laminate body, and connected to the plate electrodes. The resonators are provided in a second direction orthogonal or substantially orthogonal to the lamination direction and the first direction in the laminate body. The resonators each include a first end connected to the shield conductor and a second end spaced apart from the shield conductor. The capacitive electrode couples the resonators.

公开(公告)号：US20240039136A1

公开(公告)日：2024-02-01

申请号：US18378167

申请日：2023-10-10

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takashi NIHEI

IPC: H01P1/205 ,  H03H7/09

CPC classification number: H01P1/205 ,  H03H7/09

Abstract: A filter device includes an input terminal, an output terminal, a shield conductor, and a resonant circuit including at least one resonator, and inductors. A first inductor connects the input terminal and the shield conductor. A second inductor connects the output terminal and the shield conductor. The input terminal and the output terminal are capacitively coupled to the resonant circuit.