Film bulk acoustic resonator filter and duplexer
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United States of America Patent
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Nov 9, 2010
Issued Date -
N/A
app pub date -
Jun 6, 2007
filing date -
Oct 31, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A film bulk acoustic resonator (FBAR) filter and a duplexer are disclosed. At least one series resonator is positioned between an input port for inputting a frequency signal and an output port for outputting a frequency signal, at least two shunt resonators respectively positioned between the input and output ports and a ground, a first trimming inductor connects the at least two shunt resonators and the ground, and a second trimming inductor is positioned between the at least two shunt resonators.
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