公开(公告)号：US12074579B2

公开(公告)日：2024-08-27

申请号：US17778015

申请日：2021-03-24

Applicant: JIAXING GLEAD ELECTRONICS CO., LTD

Inventor： Changwei Luo ,  Kuan-Yu Lu ,  Jiayuan Hua ,  Feng Pan ,  Nan Liu ,  Lili Wang ,  Xing Xu

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

CPC classification number: H03H7/0115 ,  H01F27/28 ,  H01F27/40 ,  H01G4/40 ,  H03H7/1775 ,  H03H2001/0085

Abstract: The disclosure relates to an ultra-wide passband five-order band-pass filter based on an LTCC process. The ultra-wide passband five-order band-pass filter comprises a ceramic substrate, a bottom input electrode, a bottom output electrode and a bottom grounding electrode. Five parallel resonators, a grounding polar plate, two series connection capacitors, two series connection inductors, a cross-coupling capacitor and a parallel inductor are arranged in the ceramic substrate; the two series connection capacitors comprise a first series capacitor and a second series capacitor; the two series connection inductors comprise a first series inductor and a second series inductor; and according to the filter, a five-order parallel resonance structure is adopted, out-of-band suppression is deepened through the five parallel resonance units, a cross coupling capacitor, a parallel inductor and two series connection inductors are innovatively introduced.

公开(公告)号：US20240162876A1

公开(公告)日：2024-05-16

申请号：US18416979

申请日：2024-01-19

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tomohiro YONEKURA

IPC: H03H7/01 ,  H03H1/00

CPC classification number: H03H7/0115 ,  H03H7/1766 ,  H03H2001/0085

Abstract: A filter device includes a dielectric substrate, a common terminal, first and second terminals, and first and second filters. The first filter includes first and second capacitors connected in series. The first capacitor includes first and second flat electrodes facing each other. The second capacitor includes the second flat electrode and a third flat electrode facing each other. In a plan view looking from a normal direction of the dielectric substrate, the first flat electrode and the third flat electrode overlap with each other at least partially.

公开(公告)号：US11984638B2

公开(公告)日：2024-05-14

申请号：US17461099

申请日：2021-08-30

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenta Seki ,  Ryangsu Kim ,  Kazuhito Osawa

IPC: H01P5/18 ,  H03H7/01 ,  H03H1/00

CPC classification number: H01P5/187 ,  H01P5/188 ,  H03H2001/0085

Abstract: A directional coupler includes a multilayer body, a conductor (31), and a conductor (32). The conductor (31) is a conductor that is arranged in an insulating layer (21) of the multilayer body and that extends in a certain shape. The conductor (32) is arranged on a side of an insulating layer (22) of the multilayer body opposite the insulating layer (21). The conductor (32) runs parallel to the conductor (31) and is electromagnetically coupled to the conductor (31). The conductor (32) has a winding shape with one or more rounds, and has a conductor portion (321) and a conductor portion (325) that are arranged adjacent to each other with a spacing in a direction orthogonal to a running parallel direction. In plan view of the multilayer body, the conductor (31) is arranged between the conductor portion (321) and the conductor portion (325).

公开(公告)号：US11962289B2

公开(公告)日：2024-04-16

申请号：US17172431

申请日：2021-02-10

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Makoto Inoue ,  Hideyuki Sekine

IPC: H03H9/64 ,  H03H7/01 ,  H03H9/05 ,  H03H1/00 ,  H03H9/72

CPC classification number: H03H9/6453 ,  H03H7/0115 ,  H03H9/0576 ,  H03H2001/0085 ,  H03H9/725

Abstract: 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.

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：US20240022225A1

公开(公告)日：2024-01-18

申请号：US18303048

申请日：2023-04-19

Applicant: TDK CORPORATION

Inventor： Longfei YI ,  Shigemitsu TOMAKI

IPC: H03H7/01

CPC classification number: H03H7/0115 ,  H03H7/1741 ,  H03H7/1708 ,  H03H2001/0085

Abstract: An electronic component includes: a first conductor extending in one direction; a second conductor extending in the one direction; a first inductor conductor bridged so as to linearly extend between an end portion of the first conductor in its extending direction and an end portion of the second conductor in its extending direction; a connecting conductor that extends in the one direction and has a first end portion and a second end portion in its extending direction, the first end portion being connected to the first inductor conductor and being located between the first conductor and the second conductor; and a capacitor pad electrically connected to the second end portion of the connecting conductor.

公开(公告)号：US11838002B2

公开(公告)日：2023-12-05

申请号：US17460729

申请日：2021-08-30

Applicant: AVX Corporation

Inventor： Kwang Choi ,  Marianne Berolini

IPC: H03H7/01 ,  H03H1/00 ,  H03H3/00

CPC classification number: H03H7/0115 ,  H03H1/00 ,  H03H3/00 ,  H03H7/1725 ,  H03H7/1766 ,  H03H7/1775 ,  H03H2001/0085

Abstract: A high frequency multilayer filter may include a plurality of dielectric layers and a signal path having an input and an output. The multilayer filter may include an inductor including a conductive layer formed over a first dielectric layer. The inductor may be electrically connected at a first location with the signal path and electrically connected at a second location with at least one of the signal path or a ground. The multilayer filter may include a capacitor including a first electrode and a second electrode that is separated from the first electrode by a second dielectric layer. The multilayer filter has a characteristic frequency that is greater than about 6 GHz.

公开(公告)号：US20230370039A1

公开(公告)日：2023-11-16

申请号：US18044982

申请日：2022-05-18

Applicant: ANHUI ANUKI TECHNOLOGIES CO., LTD.

Inventor： Xiaodong WANG ,  Chenggong HE ,  Chengjie ZUO ,  Jun HE

IPC: H03H7/01

CPC classification number: H03H7/0115 ,  H03H7/0153 ,  H03H2001/0085

Abstract: Provided are a 3D filter circuit and a 3D filter. The 3D filter circuit includes a multilayer structure. The multilayer structure includes at least two conductive layers and at least one organic dielectric layer. Each organic dielectric layer is disposed between different conductive layers. The multilayer structure is configured to form at least one capacitor.

公开(公告)号：US11722113B2

公开(公告)日：2023-08-08

申请号：US17697520

申请日：2022-03-17

Applicant: TDK CORPORATION

Inventor： Takuya Sato

IPC: H03H7/01 ,  H01F27/28 ,  H01G4/30 ,  H01G4/40 ,  H01F27/40 ,  H03H1/00

CPC classification number: H03H7/0115 ,  H01F27/2804 ,  H01F27/40 ,  H01G4/30 ,  H01G4/40 ,  H01F2027/2809 ,  H03H2001/0085

Abstract: A low-pass filter includes first to third inductors and a capacitor. A first inductor-forming conductor layer constituting at least a part of each of the first and second inductors and a second inductor-forming conductor layer including first and second portions constituting first and second inductor portions of the third inductor are connected by a plurality of first through holes. The first portion and a capacitor-forming conductor layer constituting a part of the capacitor are connected by a plurality of second through holes. The second portion and the capacitor-forming conductor layer are connected by a plurality of third through holes.

公开(公告)号：US20230238936A1

公开(公告)日：2023-07-27

申请号：US18127149

申请日：2023-03-28

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Akira TANAKA

IPC: H03H7/12 ,  H03H7/01

CPC classification number: H03H7/12 ,  H03H7/1758 ,  H03H2001/0085

Abstract: A filter includes a body and first and second filters with pass bands different from each other. In the body, an inductor of the first filter is in a first range, and an inductor of the second filter is in a second range. The inductor in the first filter is a vertical coil including a plate electrode and a via extending in a normal direction of the body. In the second filter, the inductor facing the first range is a planar coil with a winding axis in the normal direction of the body. As seen in plan view in the normal direction of the body, an imaginary line from an extending-direction center of the plate electrode of the first filter in a direction perpendicular or substantially perpendicular to the extending direction does not intersect with the inductor of the second filter.