Chip antenna, antenna device, and mobile communication apparatus
First Claim
1. A chip antenna, comprising:
- a substrate made by laminating a plurality of sheet layers made of ceramic;
a radiating conductor having a substantially planar shape and provided on said substrate;
a grounding conductor having a substantially planar shape and provided so as to oppose said radiating conductor with said sheet layers interposed in between;
a capacitor conductor having a substantially planar shape and provided so as to oppose said radiating conductor with at least one of said sheet layers interposed in between;
a first shorting conductor which connects said radiating conductor and said grounding conductor;
a second shorting conductor which connects said grounding conductor and said capacitor conductor;
a feed terminal connected to at least one of said radiating conductor and said capacitor conductor; and
a ground terminal connected to said grounding conductor.
1 Assignment
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Accused Products
Abstract
The invention provides a chip antenna comprising: a substrate made by laminating a plurality of sheet layers made of ceramic; a radiating conductor having substantially planar shape and provided on said substrate; a grounding conductor having substantially planar shape and provided so as to oppose said radiating conductor with said sheet layers interposed in between; a capacitor conductor having substantially planar shape and provided so as to oppose said radiating conductor and said grounding conductor with said sheet layers interposed in between; a first shorting conductor which connects said radiating conductor and said grounding conductor; a second shorting conductor which connects said grounding conductor and said capacitor conductor; a feed terminal connected to said radiating conductor or said capacitor conductor; and a ground terminal connected to said grounding conductor. According to the above a chip antenna, the resonance frequency can be adjusted readily with compact size can be achieved.
70 Citations
11 Claims
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1. A chip antenna, comprising:
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a substrate made by laminating a plurality of sheet layers made of ceramic; a radiating conductor having a substantially planar shape and provided on said substrate; a grounding conductor having a substantially planar shape and provided so as to oppose said radiating conductor with said sheet layers interposed in between; a capacitor conductor having a substantially planar shape and provided so as to oppose said radiating conductor with at least one of said sheet layers interposed in between; a first shorting conductor which connects said radiating conductor and said grounding conductor; a second shorting conductor which connects said grounding conductor and said capacitor conductor; a feed terminal connected to at least one of said radiating conductor and said capacitor conductor; and a ground terminal connected to said grounding conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification