Horizontally polarized slot antenna with omni-directional...

Details Horizontally polarized slot antenna with omni-directional... Horizontally polarized slot antenna with omni-directional...

2005-04-12

2005-04-12

Le, Hoanganh (Department: 2821)

Communications: radio wave antennas

Antennas

Slot type

C343S770000

Reexamination Certificate

active

06879296

ABSTRACT:
A slot antenna comprising: a first and second boards each having an edge attached to respective opposite edges of a center board to form an essentially C-shaped open-ended channel having an inner surface and an outer surface; the center board having a slot for radiating signals defined in an electrically conductive layer bonded to an outer surface thereof and an electrically conductive feed line bonded to an inner surface thereof; the slot having a drive point being a portion of the feed line undercrossing the slot between opposite edges of the slot; the first and second boards each having an electrically conductive layer bonded to an outer surface thereof to reduce nulls, thereby providing an essentially omni-directional radiation pattern for the slot; and, a connector for coupling the signals to the antenna.

REFERENCES:
patent: 4197545 (1980-04-01), Favaloro et al.
patent: 4367475 (1983-01-01), Schiavone
patent: 5357260 (1994-10-01), Roederer et al.
patent: 5677698 (1997-10-01), Snowdon
patent: 6031503 (2000-02-01), Preiss, II et al.
patent: 6215447 (2001-04-01), Johnson
patent: 6307520 (2001-10-01), Liu
patent: 6392609 (2002-05-01), Nieminen
patent: 6414642 (2002-07-01), Honda et al.

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