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US 2006/0139225 A1Published application
Antenna apparatus and communication method employing it
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsYutaka Taguchi, Hideki Kusunoki, Toshiyasu Tanaka
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Abstract
An antenna apparatus includes a monopole antenna forming an antenna element having a metal shell body, and the antenna element has an approximately conical part, a vertex of which is on the side of a power supply part.
Claims13
An antenna apparatus comprising a monopole antenna forming an antenna element having a metal shell body, wherein:
- said antenna element has an approximately conical part, a vertex of which is on the side of a power supply part.
An antenna apparatus comprising a monopole antenna forming an antenna element having a metal shell body, wherein:
- said antenna element has a rotationally symmetrical shape, and has a part having a radius different along an axis of said rotationally symmetrical shape.
Dependencies are inferred from the claim text.