公开(公告)号：US20240021967A1

公开(公告)日：2024-01-18

申请号：US18475560

申请日：2023-09-27

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masashi ARAI ,  Tatsunori KAN

IPC: H01P1/20 ,  H01P3/16

CPC classification number: H01P1/2002 ,  H01P3/16

Abstract: A filter device includes a laminated body, a plurality of resonator portions, and a plurality of capacitor portions facing the plurality of resonator portions in a Y-axis direction, respectively. Each of the resonator portions is formed by a plurality of resonant electrode elements. Each of the capacitor portions is formed by a plurality of capacitive electrode elements. The plurality of resonant electrode elements in the resonator portion are formed such that all of facing ends with respect to the capacitive electrode elements do not overlap with each other when viewed in a planar view from a Z-axis direction. The capacitive electrode elements in the capacitor portion are formed such that a gap between the capacitive electrode element and the resonant electrode element facing each other in a Y-axis direction is substantially constant in each layer in the Z-axis direction.

公开(公告)号：US20240014534A1

公开(公告)日：2024-01-11

申请号：US18370686

申请日：2023-09-20

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masashi ARAI ,  Hitoshi TADA

IPC: H01P1/20 ,  H01P3/16

CPC classification number: H01P1/2002 ,  H01P3/16

Abstract: A filter device includes a laminate body, plate electrodes, resonators, and shield conductors. The plate electrodes are provided in the laminate body and are spaced apart from each other in a lamination direction. The resonators are between the plate electrodes and extend in a first direction. The shield conductors are on respective side surfaces of the laminate body, and connected to the plate electrodes. The resonators are within the laminate body and aligned in a second direction. The resonators each include a first end connected to the shield conductor and a second end spaced apart from the shield conductor. The resonator includes conductors laminated in the lamination direction. When the resonator is viewed in plan from the first direction, the conductors each include a first region including an end portion of the conductor and having a thickness greater than other portions of the conductor.

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.