TUNABLE ANTENNA
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United States of America Patent
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N/A
Issued Date -
Jul 30, 2015
app pub date -
Dec 3, 2014
filing date -
Jan 28, 2014
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A tunable antenna including a first radiation element, a shorting element, a feeding element, and an impedance matching circuit is provided. The first radiation element provides a first resonant path, so that the tunable antenna covers a first band. The first band includes a plurality of sub-bands. The shorting element is electrically connected to the first radiation element and has a ground point. The feeding element is electrically connected to the first radiation element and has a feeding point. The impedance matching circuit is electrically connected to the shorting element and adjusts impedance of the tunable antenna according to a control signal, so that the tunable antenna is switched between the sub-bands.
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