Impedance matching apparatus
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United States of America Patent
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Sep 1, 2015
Grant Date -
Jun 19, 2014
app pub date -
Aug 3, 2012
filing date -
Aug 8, 2011
priority date (Note) -
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Abstract
Disclosed is an impedance matching apparatus performing impedance matching between a front-end module and an antenna. The impedance matching apparatus includes an RF front end providing a multi-band RF signal, a reflected power measuring module measuring a reflection coefficient for the RF input signal, a matching unit adjusting impedance so that the reflection coefficient is minimized, a first switch module provided in the RF front end to selectively switch the RF signal onto a bypass path, and a controller allowing the RF signal to be switched onto the bypass path if a specific frequency range is detected from the reflection coefficient.
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