[SI-LIST] Re: Differential line Via - affecting common mode noise

common mode study in time domain is always very confusing.
better look for complete channel s-parameter after making sure all
connections. then look for common mode s-parameter. that will give you
better insight..

On Thu, Jun 9, 2011 at 12:19 PM, Lakshmi Narayanan Sowrirajan, ERS-HCLTech <
lakshminarayanans@xxxxxxx> wrote:

> Hi Experts,
>                How the via improve or degrade the differential lines common
> mode noise and performance as I am getting more common mode noise for a case
> where I don't have any via. If I include a transition via (modeled in HFSS -
> s4p model) the common mode noise is getting reduced. Please direct me to a
> good article/paper/book to understand the theory behind this.
>
> Thanks & Regards
> Lakshminarayanan. S
>
>
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-- 
Thanks
Rajesh


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