Microstrip line parallel-coupled-resonator filter with open-and-short end
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United States of America Patent
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Feb 7, 2006
Grant Date -
Sep 1, 2005
app pub date -
Feb 26, 2004
filing date -
Feb 26, 2004
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Abstract
The parallel-coupled-resonator coupled line filter with open-and-short end, comprises an input port for receiving an input signal; a bent first resonator and a bent third resonator where their both ends are open circuited; a second resonator whose both ends are shorted to ground; and an output port for outputting signal. Wherein, designing cross coupling between the third resonator and the first resonator to obtain a steep frequency response and reduce the interference of the image signal.
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