Diplexer
AssigneeMurata Manufacturing Co., Ltd.
InventorYuji KAMINISHI
Life of this patent
Estimating the term…
Abstract
A diplexer includes a first filter circuit including a first loop inductor defining a first loop plane and a second loop inductor defining a second loop plane, a second filter circuit adjacent to the first filter circuit, and a first via hole conductor that electrically connects an input/output terminal, the first filter circuit and the second filter circuit to each other. The first loop plane faces the second loop plane while protruding beyond the second loop plane in a first direction. The first via hole conductor is provided relative to the first loop inductor in a second direction from the first loop plane toward the second loop plane, and is superposed with a portion of the first loop plane that protrudes beyond the second loop plane when viewed in the second direction.
Claims18
A diplexer comprising:
- a multilayer body including a plurality of insulator layers stacked on top of one another in a stacking direction, the multilayer body including a bottom surface at one end in the stacking direction;
- an input/output terminal on the bottom surface;
- a first filter circuit that includes a first loop inductor and a second loop inductor;
- a second filter circuit adjacent to the first filter circuit when viewed in the stacking direction;
- and
- a first via hole conductor that electrically connects the input/output terminal, the first filter circuit and the second filter circuit to each other;
- wherein the first loop inductor defines a first loop plane and includes:
- a line-shaped first inductor conductor that extends in a first direction from the first filter circuit toward the second filter circuit when viewed in the stacking direction;
- and
- a second via hole conductor and a third via hole conductor that extend from the first inductor conductor toward the bottom surface;
- the second loop inductor defines a second loop lane and includes:
- a line-shaped second inductor conductor that extends in the first direction when viewed in the stacking direction;
- and
- a fourth via hole conductor and a fifth via hole conductor that extend from the second inductor conductor toward the bottom surface;
- the first loop plane faces the second loop plane while protruding beyond the second loop plane in the first direction;
- the first via hole conductor is provided in a second direction, which extends from the first loop plane toward the second loop plane, relative to the first loop inductor, and the first via hole conductor is superposed with a portion of the first loop plane that protrudes beyond the second loop plane when viewed in the second direction.
Dependencies are inferred from the claim text.