Nicole Selezinski, Xiaomin Duan, Katharina Scharff, D. Kaller, H. Harrer
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Routing Length Impact on Differential Via Crosstalk Cancellation
It has been shown previously that switching the polarity of differential vias can lead to a cancellation of differential crosstalk. In this paper a printed circuit board structure with different routing length differences between victim and aggressor is investigated, to determine the effect of length differences on the crosstalk cancellation. The differential crosstalk of the proposed design is simulated with the Finite Element Method and measured with a vector network analyzer. It is verified that the crosstalk cancellation depends on the length differences.
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