Antenna device
AssigneeMurata Manufacturing Co., Ltd.
InventorMinoru Sunahara
Life of this patent
Estimating the term…
Abstract
An antenna device includes an antenna body and a case that accommodates the antenna body. The antenna body includes a bobbin including a pair of side walls that extend in a first direction with inner surfaces that face each other in a second direction crossing the first direction. A winding is wound around the bobbin to surround the side walls while the axial direction is parallel to the first direction. A core is held by the side walls between the inner surfaces of the pair of side walls in an inner space defined by the winding. At least one of the inner surfaces includes inclined surfaces that overlaps the core in a third direction crossing both the first and second directions so as to be positioned closer to the core.
Claims20
An antenna device comprising:
- a case;
- an antenna body accommodated in the case and including:
- a bobbin that extends in a first direction and includes a pair of side walls that have inner surfaces that face each other in a second direction that intersects the first direction,
- a winding wound around the bobbin to collectively surround the pair of side walls, the winding having an axial direction that is parallel to the first direction, and
- a core held by the pair of side walls in such a manner as to be located between the inner surfaces of the pair of side walls in an inner space defined by the winding,
- wherein at least one of the inner surfaces of the pair of side walls includes an inclined surface, and
- wherein the inclined surface overlaps the core in a third direction so as to be positioned closer to the core than the winding, with the third direction intersecting both the first direction and the second direction.
An antenna body comprising:
- a bobbin that extends in a first direction and includes a pair of side walls that have inner surfaces that face each other in a second direction that intersects the first direction;
- a winding wound around the bobbin to collectively surround the pair of side walls, the winding having an axial direction that is parallel to the first direction;
- and
- a core held by the pair of side walls in such a manner as to be located between the inner surfaces of the pair of side walls in an inner space defined by the winding,
- wherein at least one of the inner surfaces of the pair of side walls includes an inclined surface that overlaps the core in a third direction so as to be positioned closer to the core than the winding, with the third direction intersecting both the first direction and the second direction.
Dependencies are inferred from the claim text.