Patch antenna

Details Patch antenna Patch antenna

2004-07-30

2008-08-05

Dinh, Trinh V (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S7000MS, C343S702000, C343S828000, C343S829000, C343S846000

Reexamination Certificate

active

07408510

ABSTRACT:
A patch antenna (10) includes a dielectric substrate (12), a patch conductor (14) and a ground conductor (18) formed on both surfaces thereof. A step (16) is formed on the lower surface of the dielectric substrate, which makes a spacing between the patch conductor and the ground conductor nonuniform in a direction of length of the patch conductor. By making nonuniform the spacing between the patch conductor and the ground conductor in the direction of length of the patch conductor, radiation efficiency and antenna gain are changed in that direction, resulting in asymmetrical directivity.

REFERENCES:
patent: 2002/0068602 (2002-06-01), Kuriyama et al.
patent: 2004/0145528 (2004-07-01), Mukai et al.
patent: 01-204342 (1991-03-01), None
patent: 03-307021 (1993-05-01), None
patent: 03-234110 (1994-03-01), None
patent: 2000-366700 (2002-06-01), None
patent: 2001-014689 (2002-08-01), None
patent: 2005 269366 (2005-09-01), None

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