[SI-LIST] Re: Too much predicted loss
- From: "Kai Keskinen" <kalevi@xxxxxxxxxx>
- To: <yang.you@xxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Tue, 12 Jul 2005 19:41:35 -0400
Have you got the right loss tangent value?
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of You, Yang
Sent: Tuesday, July 12, 2005 12:10 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Too much predicted loss
Hi,
I'm working with the SIWave software on a board with some
test traces but the results of the simulation indicate about 8 db more
loss than is actually seen in the lab on the actual board. I imported
the board directly from the layout tool and setup the stackup but I
think the dielectric layers I specified might be a little thinner than
on the actual board. Would that cause more loss to show up in the
s-parameters? What other factors might be contributing to this? Thanks
for your help.
Yang You
Texas Instruments, Inc.
------------------------------------------------------------------
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:
//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:
//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:
//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:
//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:
