THREE-BAND ANTENNA DEVICE WITH RESONANCE GENERATION AND PORTABLE ELECTRONIC DEVICE HAVING THE SAME
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United States of America Patent
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Issued Date -
Aug 18, 2011
app pub date -
Feb 3, 2011
filing date -
Feb 12, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A three-band antenna device with resonance generation includes a dielectric layer having an upper surface and a lower surface, a grounding element, a first radiating element, and a second radiating element. The first radiating element is arranged on the upper surface for providing a first frequency band. The second radiating element is arranged on the lower surface and stacked below the first radiating element via the dielectric layer for providing a second frequency band, so as to generate a parasitic capacitance therebetween. A third frequency band is provided by the resonance of the parasitic capacitance and the parasitic inductance in the second radiating element.
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