US 10,476,123 B2Granted

Transmission line

AssigneeMurata Manufacturing Co., Ltd.

InventorsTakahiro Baba, Satoshi Sasaki, Kuniaki Yosui

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Abstract

A transmission line includes a dielectric base body including a first and second base bodies. Each of the first and second base bodies includes dielectric layers stacked on top of one another. The first base body includes a first signal conductor located between ground conductors in a stacking direction. The second base body includes a second signal conductor located between ground conductors in the stacking direction. The first and second base bodies are brought together so that one of the ground conductors of the first base body and one of the ground conductors of the second base body abut against or are adjacent to each other. Lead conductors defining both ends of the first signal conductor and lead conductors defining both ends of the second signal conductor are exposed on a mounting surface of the dielectric base body parallel or substantially parallel to the stacking direction.

Claims18

Dependent claims

A transmission line comprising:

a dielectric base body including a plurality of dielectric layers that are stacked on top of one another;
a plurality of signal conductors located in the dielectric base body;
and
a first ground conductor located on one of the plurality of dielectric layers and facing the plurality of signal conductors;
wherein
the plurality of signal conductors include:
a film-shaped first signal conductor;
and
a film-shaped second signal conductor;
the first signal conductor and the second signal conductor are electrically disconnected from each other and located at different positions in a stacking direction of the plurality of dielectric layers;
the first ground conductor is film-shaped and includes a width wider than a width of the first signal conductor and a width of the second signal conductor, and is located between the first signal conductor and the second signal conductor in the stacking direction of the plurality of dielectric layers;
at least one end of each of the first signal conductor and the second signal conductor is curved in a direction orthogonal or substantially orthogonal to the stacking direction as viewed in the stacking direction and is exposed to an exterior of the transmission line from a surface of the dielectric base body parallel or substantially parallel to the stacking direction;
the ends of the first signal conductor and the second signal conductor include lead conductors, the lead conductors and the dielectric layers in which the lead conductors are located include a projecting portion that is a portion projecting from a surface of the dielectric base body parallel or substantially parallel to the stacking direction;
and
the projecting portion includes a plurality of projections that at least partially overlap in the stacking direction.

12 more elements

A transmission line comprising:

a dielectric base body including a plurality of dielectric layers that are stacked on top of one another;
a plurality of signal conductors located in the dielectric base body;
and
a first ground conductor located in the plurality of dielectric layers and facing the plurality of signal conductors;
wherein
the plurality of signal conductors include:
a film-shaped first signal conductor;
and
a film-shaped second signal conductor;
the first signal conductor and the second signal conductor are electrically disconnected from each other and located at different positions in a stacking direction of the plurality of dielectric layers;
at least one signal conductor among the first signal conductor and the second signal conductor includes a lead conductor at an end portion of the at least one signal conductor, the lead conductor being located on a dielectric layer among the plurality of dielectric layers;
the lead conductor and the dielectric layer in which the lead conductor is located include a projecting portion that is a portion projecting from a surface of the dielectric base body parallel or substantially parallel to the stacking direction;
the projecting portion includes a plurality of projections that at least partially overlap in the stacking direction;
the projecting portion is flexible;
and
the first ground conductor is filmed-shaped and includes a width wider than a width of the first signal conductor and a width of the second signal conductor, and is located between the first signal conductor and the second signal conductor in the stacking direction of the plurality of dielectric layers.

13 more elements

Dependencies are inferred from the claim text.