Mitigation of far-end crosstalk induced by routing and out-of-plane interconnects
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United States of America Patent
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Dec 6, 2016
Grant Date -
Jul 24, 2014
app pub date -
Dec 29, 2011
filing date -
Dec 29, 2011
priority date (Note) -
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Abstract
In accordance with one aspect of the present description, a transmission line such as a microstrip or stripline transmission line, has stub-shaped projections adapted to compensate simultaneously for both far-end crosstalk (FEXT) induced by inductive coupling between the transmission line and an adjacent transmission line, and also far-end crosstalk induced by inductive coupling between the vertical electrical interconnect at the far end of the transmission line and an adjacent vertical electrical interconnect electrically connected to the adjacent transmission line. In another aspect of the present description, a microstrip transmission line may have multiple stubby line sections having different resistances and impedances to more gradually transition from to the typically low impedance characteristics of vertical interconnects such as the PTH vias and socket connectors. Other aspects are described.
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