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US 2011/0234471 A1Published application
Spiral antenna
AssigneeKabushiki Kaisha Toshiba
InventorsMasahiro TANABE, Hisamatsu Nakano
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a spiral antenna includes an antenna element, a cavity, and a radio wave absorber. The spiral antenna is formed into a spiral shape on a dielectric substrate. The cavity is formed to have a space with the antenna element. The radio wave absorber is placed to cover a terminal end portion of the spiral.
Claims4
A spiral antenna comprising:
- an antenna element formed into a spiral shape on a dielectric substrate;
- a cavity formed to have a space with the antenna element;
- and
- a radio wave absorber placed to cover a terminal end portion of the spiral.
1 more element
Dependencies are inferred from the claim text.