Radio frequency diplexer
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United States of America Patent
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Aug 23, 2005
Grant Date -
Nov 11, 2004
app pub date -
Sep 17, 2003
filing date -
May 8, 2003
priority date (Note) -
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Abstract
An improved radio frequency diplexer has resonators which are associated either with the transmission path or with the reception path, and at least two additional resonators are also provided. The at least two additionally provided resonators form an interconnection resonator pair which are strongly coupled to one another. Both the transmission path and the reception path are coupled to the second additional resonator, or both the transmission path and the reception path are coupled to the first additional resonator which is provided for inputting to/outputting from the common signal path.
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