ANTENNA DEVICE
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United States of America Patent
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Issued Date -
Aug 8, 2013
app pub date -
Aug 18, 2011
filing date -
Oct 21, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
It is characterized in that it includes; a single antenna element corresponding to a first frequency band and a second frequency band that is different from the first frequency band; a power feeding point for supplying AC power to the antenna element; and a parallel resonance circuit electrically connected between the antenna element and the power feeding point, and the parallel resonance circuit has impedance that is set so as to indicate induction properties in the first second frequency band and set so as to indicate capacitance properties in the second frequency band, and return loss in the first and second frequency bands is sufficiently small so as to enable wireless communication.
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