US 2015/0311577 A1Published application

Directional coupler

AssigneeMurata Manufacturing Co., Ltd.

InventorsShinya Yamatogi, Nobuyoshi Okuda

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Abstract

A directional coupler includes a multilayer structure formed by stacking a plurality of dielectric layers including first and second dielectric layers; a main line including first and second main line portions that are electrically connected in series to each other; and a sub line electromagnetically coupled with the main line, the sub line including first and second sub line portions that are electrically connected in series to each other. The first main line portion and the first sub line portion are provided on the first dielectric layer. The second main line portion and the second sub line portion are provided on the second dielectric layer. In planar view along a stacking direction, the first main line portion and the second sub line portion overlap one another, and the first sub line portion and the second main line portion overlap one another.

Claims14

Dependent claims

A directional coupler comprising:

a multilayer structure comprising a plurality of dielectric layers being stacked, the plurality of dielectric layers including a first dielectric layer and a second dielectric layer;
a main line including a first main line portion and a second main line portion, the first main line portion and the second main line portion being electrically connected in series to each other;
and
a sub line that is electromagnetically coupled with the main line, the sub line including a first sub line portion and a second sub line portion, the first sub line portion and the second sub line portion being electrically connected in series to each other;
wherein
the first main line portion and the first sub line portion are provided on the first dielectric layer,
the second main line portion and the second sub line portion are provided on the second dielectric layer, and
in a planar view along a stacking direction, the first main line portion and the second sub line portion overlap one another, and the first sub line portion and the second main line portion overlap one another.

5 more elements

Dependencies are inferred from the claim text.