On-Vehicle Antenna
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United States of America Patent
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N/A
Issued Date -
Jan 7, 2010
app pub date -
Jan 24, 2006
filing date -
Mar 25, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
No coupled effects occur even when a plurality of antennas is provided. An insert fitting 12 is formed integrally with an antenna cover such that the insert fitting 12 is arranged overhead of a patch antenna 13 in a position where the gap h satisfies h<<.lamda./4. Further, the width D of the insert fitting 12 and an antenna element 10 secured to the insert fitting 12 is set so as to satisfy D<<.lamda./4, and the insert fitting 12 and the antenna element 10 are extended upwards at a slant. An effect on the emission pattern and electric characteristics of the patch antenna 13 can thereby be prevented even if the antenna element 10 and the insert fitting 12, which are metal conductors, are arranged in proximity to the patch antenna 13.
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