Antenna device and wireless communication apparatus
AssigneeMurata Manufacturing Co., Ltd.
InventorsNobuhito TSUBAKI, Noboru KATO
Life of this patent
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Abstract
An antenna device includes a feeding coil antenna and a booster coil antenna electromagnetically coupled to the feeding coil antenna. The feeding coil antenna includes a plurality of coil portions including at least one magnetic body and each including a coil conductor wound around the at least one magnetic body. The plurality of coil portions are connected to one another in an in-phase mode, and are arranged near one another such that winding axes of the coil conductors are oriented approximately in the same direction and at least portions of respective openings of the coil conductors face one another.
Claims20
(canceled)
An antenna device comprising:
- a feeding coil antenna;
- and
- a booster coil antenna electromagnetically coupled to the feeding coil antenna;
- wherein
- the feeding coil antenna includes a plurality of coil portions including at least one magnetic body and each including a coil conductor wound around the at least one magnetic body;
- the plurality of coil portions are connected to one another in an in-phase mode, and are arranged such that winding axes of the coil conductors are oriented approximately in a same direction and at least portions of respective openings of the coil conductors face one another.
A wireless communication apparatus comprising:
- a feeding circuit;
- a feeding coil antenna connected to the feeding circuit;
- and
- a booster coil antenna electromagnetically coupled to the feeding coil antenna;
- wherein
- the feeding coil antenna includes a plurality of coil portions including at least one magnetic body and each including a coil conductor wound around the at least one magnetic body;
- and
- the plurality of coil portions are connected to one another in an in-phase mode, and are arranged such that winding axes of the coil conductors are oriented approximately in a same direction and at least portions of respective openings of the coil conductors face one another.
Dependencies are inferred from the claim text.