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US 2002/0154062 A1Published application
Antenna device
AssigneeKoninklijke Philips Electronics N.V.
InventorsMasaaki Abe, Makoto Fujita
Life of this patent
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Abstract
The invention provides an antenna device 1 that is small in its size but wide in its bandwidth. The recess 2a is formed in the dielectric substrate 2. The shorting electrode 5 is formed on the front surface 2d of the substrate 2 for connecting radiation electrode 3 to each of grounding electrodes 6, 7.
Claims5
An antenna device provided with a substrate and a radiation electrode which extends two-dimensionally and is formed on a surface of or inside said substrate, characterized in that said substrate has a hollow part or a recess.
Dependencies are inferred from the claim text.