[SI-LIST] non-negative off diagonal capacitive matrix elements ??
- From: "fname lname" <signalguy@xxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx, Raymond.Anderson@xxxxxxx
- Date: Sat, 08 Sep 2001 15:40:01 -0500
Hi Folks,
I have a question. Should the coupling coefficients in the maxwell capacitence
matrix always be in the descending order going down along a column or can the
coupling between the 2nd and 3rd element be greater than between the 1st and
2nd element.
Any help is greatly appreciated.
Thanks,
Signal Guy.
--
>I've just extracted the RLGC matrices for 5 coupled
>striplines using Apsimtech RLGC.
>
>As expected, the diagonal elements of the capacitive matrix are
>positive capacitance values. All the off-diagonal elements are
>negative EXCEPT one. Is this correct. It has been a while since I've
>thought about this, but I was under the impression the capacitive
>off diag element were all negative. Anyone know for sure ??
>
>The element in column 1 row 5 is the one I question:
>
>
> 3.1600e-15
> -4.9360e-16 3.2540e-15
> -2.0080e-17 -4.8990e-16 3.2540e-15
> -1.3380e-18 -1.9820e-17 -4.8990e-16 3.2540e-15
> 3.1280e-20 -1.3380e-18 -2.0080e-17 -4.9360e-16 3.1600e-15
>
>
>
>
>-Ray
>
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