Antenna device and method of adjusting said antenna device
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United States of America Patent
Stats
-
Feb 1, 2005
Grant Date -
Sep 9, 2004
app pub date -
Feb 13, 2004
filing date -
Dec 20, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A dual-band antenna device for a portable radio communication device (2) comprises an inner (10) and an outer (20) generally planar radiating element portion. The inner portion is galvanically ungrounded and connectable to feed and the outer portion is connectable to ground. The element portions are essentially coplanar and separated by a gap (30;30'), wherein the outer element portion (20) surrounds the inner element portion (10). With this configuration desired antenna characteristics are obtainable in a controlled way. A portable radio communication device and a method for separate adjustment of the frequency bands are also provided.
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