System and method for active diplexers
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United States of America Patent
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Apr 2, 2013
Grant Date -
Dec 31, 2009
app pub date -
Jun 27, 2008
filing date -
Jun 27, 2008
priority date (Note) -
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Abstract
Methods and systems for signal filtering in electronic devices are provided. More particularly, methods and systems for filtering of radio frequency (RF) signals are provided. A filter circuit may comprise a down-converter, a filter, coupled to the down-converter and configured to filter the down-converted signal, and an up-converter, coupled to the filter. A filter circuit may also comprise a combining circuit, coupled to the up-converter and configured to combine the filtered, up-converted signal and the input signal.
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