Cavity filter coupling system
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United States of America Patent
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Mar 27, 2012
Grant Date -
Oct 22, 2009
app pub date -
Dec 15, 2008
filing date -
Dec 27, 2007
priority date (Note) -
Expired
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Abstract
The elliptical response bandpass filter according to the invention comprises a plurality N of cavities connected in series by means of in-phase coupling loops; the first cavity is in addition connected to the last by a complementary phase-inversion coupling loop in order to generate transmission zeros at determined frequencies.
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