[SI-LIST] Re: How to simulate length mismatch of PCB traces

The question implies that the mutual coupling between the lines be included
otherwise the solution is trivial. If the length difference is short
cascading a w-element is not a good solution. Indeed the w-element for
electrically short lines should be avoided at all times. A quick and dirty
way is to make a ladder circuit or use a U-element (if anybody can remember
that...) to account for the length difference.
Regards

Ihsan


On 3/29/06, YongJin CHOI <yc2158@xxxxxxxxx> wrote:
>
> Dear SI members,
> I am looking for a simple simulation method to get a
> rough idea if one or two of the four traces is a
> little bit longer like 1~2mm. The transmission line
> models I am having are W-model from Hspice field
> solver(2-D) and S-parameter model from HFSS. I can use
> Hspice or Spectre depending on the simplicity.
> Any comments would be appreciated.
> Thanks,
>
> Yongjin CHOI
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> ------------------------------------------------------------------
> To unsubscribe from si-list:
> si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
>
> or to administer your membership from a web page, go to:
> http://www.freelists.org/webpage/si-list
>
> For help:
> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
>
> List FAQ wiki page is located at:
>                http://si-list.org/wiki/wiki.pl?Si-List_FAQ
>
> List technical documents are available at:
>                http://www.si-list.org
>
> List archives are viewable at:
>                http://www.freelists.org/archives/si-list
> or at our remote archives:
>                http://groups.yahoo.com/group/si-list/messages
> Old (prior to June 6, 2001) list archives are viewable at:
>                http://www.qsl.net/wb6tpu
>
>
>

------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field

List FAQ wiki page is located at:
                http://si-list.org/wiki/wiki.pl?Si-List_FAQ

List technical documents are available at:
                http://www.si-list.org

List archives are viewable at:     
                http://www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu

Other related posts: