Chip antenna
First Claim
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1. A chip antenna comprising:
- a substrate comprising at least one of a dielectric material and a magnetic material, the substrate having a surface and having at least a portion of the surface comprising a flat surface to be mounted on a mounting board;
at least one conductor disposed at least one of within the substrate and on the surface of said substrate; and
a pair of terminals disposed on the surface of said substrate and connected to respective ends of said conductor;
said substrate comprising a plurality of layers stacked on top of each other, the stacked layers establishing a direction normal to the stacked layers, the conductor being disposed spirally and having a spiral axis extending perpendicular to the direction normal to the stacked layers.
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Abstract
A chip antenna in which correct evaluation and inspection of a conductor can be performed regardless of the state of grounding. The chip antenna has a rectangular-prism-shaped substrate formed of a dielectric material comprising, e.g., barium oxide, aluminum oxide and silica. A copper or copper-alloy conductor is spirally wound within the substrate in the longitudinal direction. A feeding terminal for applying a voltage to the conductor and a free terminal are disposed on the surfaces of the conductor. One end of the conductor is attached to the feeding terminal, while the other end is connected to the free terminal.
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Citations
19 Claims
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1. A chip antenna comprising:
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a substrate comprising at least one of a dielectric material and a magnetic material, the substrate having a surface and having at least a portion of the surface comprising a flat surface to be mounted on a mounting board; at least one conductor disposed at least one of within the substrate and on the surface of said substrate; and a pair of terminals disposed on the surface of said substrate and connected to respective ends of said conductor; said substrate comprising a plurality of layers stacked on top of each other, the stacked layers establishing a direction normal to the stacked layers, the conductor being disposed spirally and having a spiral axis extending perpendicular to the direction normal to the stacked layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification