Planar antenna device

Details Planar antenna device Planar antenna device

1997-05-19

1999-12-14

Le, Hoanganh

Communications: radio wave antennas

Antennas

Microstrip

343702, 343846, 343872, H01Q 138

Patent

active

060023678

ABSTRACT:
An compact antenna device which is intended for a small-size portable radio communication device and comprises a ground plane (1), a first radiating patch (2), a grounding means (3) connecting the patch and the ground plane. The patch is fed by a feeding means (6) which is situated on the same or opposite side of the ground plane or coplanar therewith and couples through a slot (5) provided in the ground plane. The disclosed antenna device may include further radiating patches in the same or higher levels as the first radiating patch. The antenna device also provides for wideband and/or multiband operation.

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