RADIO FREQUENCY FILTER
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United States of America Patent
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app pub date -
Sep 8, 2015
filing date -
Mar 8, 2013
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a radio frequency filter comprising: a first filter unit for filtering a signal in a first frequency band, which is a basic frequency band; a second filter unit for filtering a signal in a second frequency band, which is an additional frequency band in addition to the basic frequency band; and a switching unit having a structure in which at least one resonance terminal among one or more resonance terminals constituting the second filter unit is connected to or blocked from a ground terminal so as to eliminate or maintain the resonance function of the relevant resonance terminal(s).
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