Back to results
US 7,405,705 B2Granted
Wideband antenna
AssigneeHitachi Cable, Ltd.
InventorKeisuke Fukuchi
Life of this patent
Estimating the term…
Abstract
A wideband antenna has: a rectangular conductor sheet; a bow-tie-shaped slit formed in the rectangular conductor sheet, the rectangular conductor sheet having two apex portions defined by the bow-tie-shaped slit, the two apex portions being opposite to each other in the middle of the bow-tie-shaped slit; an auxiliary antenna element formed to extend along the bow-tie-shaped slit on both sides of one of the two apex portions; a power-feeding portion formed at the one of the two apex portions; and a grounding portion formed at an other of the two apex portions.
Claims5
A wideband antenna, comprising:
- a rectangular conductor sheet;
- an odd-shaped slit with a laterally elongated rhombic or tapered shape formed in the rectangular conductor sheet so that a notch slit is formed to extend from side-corner portions of the odd-shaped slit toward the long sides of the rectangular conductor sheet;
- an auxiliary antenna element formed to extend from one side-corner portion of the side-corner portions into the odd-shaped slit;
- a power-feeding portion formed at a base of the auxiliary antenna element;
- and
- a grounding portion formed in the other side-corner portion of the mutually opposite side-corner portions of the notch slit.
3 more elements
Dependencies are inferred from the claim text.