Chip antenna for terrestrial DMB

Communications: radio wave antennas – Antennas – With radio cabinet

Reexamination Certificate

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Details

C343S895000

Reexamination Certificate

active

07002522

ABSTRACT:
Disclosed herein is a chip antenna for terrestrial DMB. The chip antenna comprises a dielectric block, a main antenna device formed with conductive patterns in the dielectric block such that a plurality of unit lamination structures of the conductive patterns having a meander line structure in the direction of the Z-axis in an XZ plane are arranged in the direction of the Y axis while adjacent unit lamination structures are connected to each other, forming a lamination structure having the meander line structure in the directions of the Y-axis, and the plurality of lamination structures are arranged in the direction of the X-axis and adjacent lamination structures are connected to each other in the direction of the X-axis to have the meander line structure, and a T-shaped assistant antenna device formed at an upper or lower dielectric layer in the main antenna device.

REFERENCES:
patent: 5798737 (1998-08-01), Kanaba et al.
patent: 6028568 (2000-02-01), Asakura et al.
patent: 6075491 (2000-06-01), Dakeya et al.
patent: 6396460 (2002-05-01), Tseng et al.
patent: 6583769 (2003-06-01), Shiroki et al.
patent: 2004/0119653 (2004-06-01), Asakura et al.
patent: 2349277 (2000-10-01), None
patent: 2000-59125 (2000-02-01), None
patent: 2003-209422 (2003-07-01), None
patent: WO 2004/040691 (2004-05-01), None

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