Acoustic filter with suppressed nonlinear characteristics
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United States of America Patent
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Sep 27, 2016
Grant Date -
Apr 9, 2015
app pub date -
May 27, 2014
filing date -
Oct 7, 2013
priority date (Note) -
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Abstract
An acoustic filter includes a signal input port, a ladder-type filter, a first branch ladder-type filter, a second branch ladder-type filter, and a signal output port. The first branch ladder-type filter and the second branch ladder-type filter are connected in parallel to each other. The signal input port is connected to the ladder-type filter. The ladder-type filter circuit is connected in series to the first branch ladder-type filter and the second branch ladder-type filter. The first branch ladder-type filter circuit and the second branch ladder-type filter are connected to the signal output port.
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