Multiaxial antenna chip
AssigneeKabushiki Kaisha Tokai Rika Denki Seisakusho
InventorsYutaka Yoshida, Takayuki Hiramitsu, Akihito Kimura, Hirofumi Okada
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Abstract
A three-axis antenna chip includes a cross-shaped core made of a magnetic substance. The core includes an X-axis core piece and a Y-axis core piece. The core pieces are laid on top of each other such that the core pieces extend perpendicular to each other. An X-axis coil portion is provided about the X-axis core piece, and a Y-axis coil portion is provided about the Y-axis core piece. A Z-axis coil portion is provided about a Z-axis that is perpendicular to the X-axis core piece and the Y-axis core piece. The three-axis antenna chip thus constructed is advantageous in reducing the size.
Claims17
A multiaxial antenna chip, comprising:
- a generally cross-shaped core, which includes an X-axis arm portion and an Y-axis arm portion extending perpendicular to each other;
- an X-axis coil portion provided about the X-axis arm portion;
- an Y-axis coil portion provided about the Y-axis arm portion;
- a Z-axis coil portion provided about a Z-axis that extends perpendicular to the X-axis arm portion and the Y-axis arm portion;
- and
- a casing defining an accommodating concave portion, wherein the accommodating concave portion has a shape corresponding to that of the core, wherein the accommodating concave portion accommodates the core equipped with the coil portions such that the core is positioned in the accommodating concave portion,
- wherein the casing has a winding concave portion formed at its periphery, the Z-axis coil portion being wound about the casing and being received in the winding concave portion.
Dependencies are inferred from the claim text.