# US 9,882,541 B2 · Electronic component

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- Number: US 9,882,541 B2
- Document ID: US9882541B2
- Status: Granted
- Kind: B2
- Application number: 15/008,769
- Filed: 2016-01-28
- Published: 2016-08-04
- Granted: 2018-01-30
- Earliest claimed: 2015-01-29
- Assignees: Murata Manufacturing Co., Ltd.
- Applicants: Murata Manufacturing Co., Ltd.
- Inventors: Kunihiro Watanabe
- Web page: https://patentgrep.com/patent/US9882541B2

## CPC

- H03H 7/0115: {comprising only inductors and capacitors (H03H7/075, H03H7/09, H03H7/12, H03H7/13 take precedence)}
- H03H 7/09: Filters comprising mutual inductance
- H03H 7/1758: {Series LC in shunt or branch path (H03H7/1791 takes precedence)}
- H03H 7/1766: {Parallel LC in series path (H03H7/1783 takes precedence)}
- H03H 7/1775: {Parallel LC in shunt or branch path (H03H7/1791 takes precedence)}
- H03H 2001/0085: {Multilayer, e.g. LTCC, HTCC, green sheets}
- H03H: IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS (waveguides, resonators, lines or other devices of the waveguide type H01P)

## Abstract

An electronic component includes first through n-th inductors that turn around as viewed from a first direction perpendicular or substantially perpendicular to a stacking direction of a multilayer body of the electronic component. An (n+1)-th inductor includes a linear (n+1)-th inductor conductive layer which is provided in a configuration in which it turns around, as viewed from the stacking direction, and which is located within a region surrounded by the first inductor, as viewed from the first direction. An (n+1)-th capacitor is electrically connected to a first outer electrode, and includes an (n+1)-th capacitor conductive layer which opposes a first inductor conductive layer defining the first inductor with an insulating layer of a plurality of insulating layers of the multilayer body interposed therebetween.

## Claims

### Claim 1

An electronic component comprising:
a multilayer body including a plurality of insulating layers stacked on each other in a stacking direction;
a first outer electrode disposed on a surface of the multilayer body;
first through n-th, where n is an integer of two or greater, resonators that are provided in the multilayer body in a first direction perpendicular or substantially perpendicular to the stacking direction in order of the first through n-th resonators, among the first through n-th resonators, resonators adjacent to each other in the first direction being magnetically coupled with each other; and
an additional LC parallel resonator connected to the first outer electrode; wherein
the first through n-th resonators respectively include first through n-th inductors and first through n-th capacitors;
the first through n-th inductors respectively include first through n-th inductor conductive layers disposed on an insulating layer of the plurality of insulating layers and first through n-th interlayer connecting conductors passing through an insulating layer of the plurality of insulating layers in the stacking direction, and the first through n-th inductor conductive layers and the first through n-th interlayer connecting conductors are connected to each other so that the first through n-th inductors are provided in a configuration in which the first through n-th inductors turn around, as viewed from the first direction;
the additional LC parallel resonator includes an (n+1)-th inductor and an (n+1)-th capacitor;
the (n+1)-th inductor includes a linear (n+1)-th inductor conductive layer which is provided in a configuration in which the linear (n+1)-th inductor conductive layer turns around, as viewed from the stacking direction, and which is located within a region surrounded by the first inductor, as viewed from the first direction, and the (n+1)-th inductor is directly conductively connected to the first resonator; and
the (n+1)-th capacitor is electrically connected to the first outer electrode, and includes an (n+1)-th capacitor conductive layer which opposes the first inductor conductive layer with an insulating layer of the plurality of insulating layers interposed therebetween.

### Claim 2 (depends on 1)

The electronic component according to claim 1, wherein the first through n-th resonators are LC series resonators.

### Claim 3 (depends on 1)

The electronic component according to claim 1, wherein the first through n-th resonators are LC parallel resonators.

### Claim 4 (depends on 1)

The electronic component according to claim 1, wherein the (n+1)-th capacitor conductive layer opposes the (n+1)-th inductor conductive layer with an insulating layer of the plurality of insulating layers interposed therebetween.

### Claim 5 (depends on 1)

The electronic component according to claim 1, wherein
the first inductor includes a plurality of the first inductor conductive layers; and
one of the plurality of first inductor conductive layers is disposed between the (n+1)-th capacitor conductive layer and the (n+1)-th inductor conductive layer in the stacking direction.

### Claim 6 (depends on 1)

The electronic component according to claim 1, wherein
the first through n-th resonators define a band pass filter that allows a radio-frequency signal in a predetermined band to pass through the band pass filter; and
a resonant frequency of the additional LC parallel resonator coincides or substantially coincides with a cutoff frequency of a high frequency side of the predetermined band.

### Claim 7 (depends on 6)

The electronic component according to claim 6, wherein the band pass filter includes a plurality of high pass filters and a plurality of low pass filters.

### Claim 8 (depends on 1)

The electronic component according to claim 1, wherein the first through n-th interlayer connecting conductors are via-hole conductors.

### Claim 9 (depends on 1)

The electronic component according to claim 1, wherein at least one of the first through n-th inductors has a helical or substantially helical shape.

### Claim 10 (depends on 1)

The electronic component according to claim 1, wherein each of the first through n-th inductor conductive layers has a U-shape or substantially a U-shape opened rightward or leftward.

### Claim 11 (depends on 1)

The electronic component according to claim 1, wherein the first through n-th capacitors include first through n-th capacitor conductor layers having an L-shaped or substantially L-shaped configuration, or a rectangular or substantially rectangular configuration.

### Claim 12 (depends on 1)

The electronic component according to claim 1, wherein the first through n-th resonators define a low pass filter.
