Programmable surface acoustic wave filter
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United States of America Patent
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Oct 21, 2008
Grant Date -
Aug 31, 2006
app pub date -
Feb 6, 2006
filing date -
Feb 4, 2005
priority date (Note) -
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Abstract
A programmable surface acoustic wave filter and methods thereof including a piezoelectric substrate, a ground electrode formed in a comb structure on the piezoelectric substrate, a plurality of output electrodes formed in comb structures on the piezoelectric substrate and alternately disposed together with the ground electrode, and a switching unit performing a switching operation so as to selectively transmit output signals output from the plurality of output electrodes to an output node. As a result, a filtering characteristic of the programmable surface acoustic wave filter can be programmed in a desired format.
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