Antenna unit
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United States of America Patent
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Feb 13, 2007
Grant Date -
Jan 12, 2006
app pub date -
Oct 25, 2004
filing date -
Feb 17, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This antenna unit is adapted to be connected to an electronic device for transmitting a received radio signal to the electronic device. The antenna unit comprises a noise canceller for canceling noise generated in the electronic device and transmitted to the antenna unit through a ground line. The noise canceller is a conductive stub piece one end of which is electrically connected to an electromagnetic shield of the antenna unit and the other end of which is a free end. The stub piece has a length of about 1/4 of a wavelength of the radio signal.
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