Planar antenna device
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United States of America Patent
Stats
-
Dec 14, 1999
Grant Date -
N/A
app pub date -
May 19, 1997
filing date -
May 17, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
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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