Communications: radio wave antennas – Antennas – Slot type
Reexamination Certificate
2006-06-01
2008-05-13
Le, Hoanganh (Department: 2821)
Communications: radio wave antennas
Antennas
Slot type
C343S795000, C343S7000MS
Reexamination Certificate
active
07372417
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.
REFERENCES:
patent: 6762729 (2004-07-01), Egashira
patent: 2006/0055619 (2006-03-01), Sarabandi et al.
patent: 2004-343424 (2004-12-01), None
patent: 2005-094437 (2005-04-01), None
patent: 2005-094499 (2005-04-01), None
Chang et al.,Microwave and Optical Technology Letters, vol. 25, No. 3, May 5, 2000, pp. 206-211.
Foley & Lardner LLP
Hitachi Cable Ltd.
Le Hoang-anh
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