Radio frequency antenna
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United States of America Patent
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Apr 2, 2002
Grant Date -
N/A
app pub date -
Sep 5, 2000
filing date -
Sep 5, 2000
priority date (Note) -
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Abstract
A vehicle antenna comprising: an antenna structure having an input impedance, Z.sub.A, equal to a sum of a resistance and an active impedance; a circuit element having high circuit element impedance at an operating frequency range of the antenna, wherein the circuit element is coupled in parallel with the input impedance.
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