[SI-LIST] coupling capacitance between differential pairs

Dear all:
Recently, I am studying crosstalk between differential pairs. I notice that the 
coupling capacitance between differential pairs is negative. Have anybody 
noticed the same thing? Why?

Explain: In Hspice, the non-diagonal element in the C-matrix is negative. 
Harrington called it B-matrix in one paper. Please donot misunderstand me. 
Here, what I means is the C-matrix, not B-matrix.

Best Regards

Zhangkun
2004.5.25


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