[SI-LIST] Re: Estimate the differential via stub effect and simulate FR4 weaving effect
- From: "Lambert Simonovich" <bertsimonovich@xxxxxxxxxx>
- To: "'john lin'" <johnlinc@xxxxxxxxx>, "'si-list'" <si-list@xxxxxxxxxxxxx>
- Date: Sun, 16 Oct 2011 22:44:05 -0400
Hi John,
I have a couple of white papers from my web site you might find useful to
answer your questions:
Method of Modeling Differential Vias White Paper:
<http://lamsimenterprises.com/Copyright.html>
Practical Fiber Weave Effect Modeling White Paper:
<http://lamsimenterprises.com/Copyright.html>
Regards,
Bert Simonovich
Backplane Specialist and Founder
LAMSIM Enterprises Inc.
Web Site: http://lamsimenterprises.com
Blog: http://blog.lamsimenterprises.com/
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of john lin
Sent: October-16-11 10:27 PM
To: si-list
Subject: [SI-LIST] Estimate the differential via stub effect and simulate
FR4 weaving effect
Dear SI gurus,
I am doing 6Gb/s simulation and encounter two puzzles. How to estimate the
effect of via stub (differential via) onto 6Gb/s differential signals?
How do I estimate the resonance frequency caused by the stubs?
For differential signal, shall the effect be cancelled out due to the good
nature of differential signals-- noise cancelling?
How to do simulation to include the FR4 material's fiber weaving effect?
Could you please help to shed some light on them?
Thank you for your helps in advance.
Best Regards,
John Lin
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