Coil component
AssigneeSumida Corporation
InventorsYoshiki Kudo, Fumihito Meguro, Tsuyoshi Sato, Takanobu Rokuka, Shinji Okamura
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Abstract
The present invention provides a coil component provided with a magnetic core and a coil wound around the magnetic core. The coil component of the present invention is provided with an eddy-current generation member using any one of or any combination of a tape member using a conductive metallic foil, a thin film using a conductive metal material, a ribbon using a conductive metal material, a coated film using a conductive metal material, and a plate member using a conductive metal material. In a coil antenna adopting the coil component of the present invention, it is enabled to adjust the Q value to a desired value without increasing the direct current resistance value.
Claims4
A coil antenna component comprising:
- a straight rod shaped magnetic core;
- a coil wound around the magnetic core;
- an exterior member;
- and
- an eddy-current generation member;
- wherein the exterior member is formed of nonconductive resin and covers the magnetic core and the coil, and wherein the eddy-current generation member is formed partially covering the straight rod such that at least a portion of the magnetic core is not covered by the eddy-current generation member, the eddy-current generation member being further formed so as to contact the exterior member or the magnetic core.
Dependencies are inferred from the claim text.