H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 88/02 (2009.01) H01Q 1/38 (2006.01) H03J 1/00 (2006.01) H04B 1/40 (2006.01)
Patent
CA 2716221
A communication device having an antenna tuned by a tank network at its input port to realize dual-band resonance. The antenna alone has a wideband but weak resonance, while the device antenna circuit with the tank network has a narrowband resonance between the two desired frequencies when the antenna is open-circuited. Together, the device antenna circuit with the tank network and antenna realize dual narrowband resonance at the two desired frequencies.
Handro Andreas
Kuehn Michael
Research In Motion Limited
Ridout & Maybee Llp
LandOfFree
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