Matched antenna device and a portable radio communication device including a matched antenna device
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United States of America Patent
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Feb 13, 2001
Grant Date -
N/A
app pub date -
Nov 12, 1999
filing date -
Nov 13, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A matched antenna device (1) for a radio communication device, comprising a matching means (3, 33) and a first antenna element (4). The matched antenna device (1) comprises a flexible dielectric substrate (2) carrying the matching means (3, 33) on a first side (21). The matching means (3, 33) comprises a conductive pattern (3), having a first coupling means (31) and a second coupling means (32), and exhibits inductive and capacitive characteristics. The flexible substrate (2) is to be attached to the radio communication device so as to capacitively couple the conductive pattern (3) to signal ground of the radio communication device. The first coupling means (21) is to be coupled to the circuitry of the radio communication device, and the second coupling means (32) is coupled to a feed portion (42) of the first antenna element (4).
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