Triple-mode cavity filter having a metallic resonator
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United States of America Patent
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Jul 13, 2010
Grant Date -
Oct 15, 2009
app pub date -
Apr 14, 2008
filing date -
Apr 14, 2008
priority date (Note) -
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Abstract
A triple-mode filter is disclosed, the triple-mode filter including a cavity for confining electromagnetic waves and a metallic block acting as a resonator within that cavity. The metallic block does not contact the conductive walls of the cavity, but is instead suspended by a support element. Triple-mode resonators may be combined to produce bandpass filters having three or more poles. In other configurations, triple-mode cavity metallic resonators may be coupled to triple-mode cavity ceramic resonators or to combline resonators to achieve various filtering functions and performances suitable for different applications.
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