[SI-LIST] Re: Conductor loss or Dielectric loss
- From: "Abe (Abbas) Riazi" <ariazi@xxxxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Fri, 10 Nov 2006 12:15:21 -0800
=20
>But at attenuation factor, there are conductor loss(skin effect) and
dielectric loss.
>How can I distinguish each other?
=20
Dear HK Kim:
The PCB trace losses include conductor and dielectric losses.
The conductor losses can be decomposed as DC resistive plus skin effect
losses.
The Ohmic losses are frequency independent while the skin effect losses
vary with square root of frequency. =20
The dielectric losses are proportional to frequency. At sufficiently
high frequencies (exceeding ~ 1.0 GHz) for typical PCB trace dimensions,
the dielectric losses can become the dominant loss mechanism.
These transmission line losses can adversely influence signal rise time,
amplitude,=20
noise margins and timing.
Best Regards,
Abe Riazi
ServerWorks=20
=20
=20
------------------------------------------------------------------
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:
