RE: [SI-LIST] : A basic question

About this list Date view Thread view Subject view Author view

From: rbmccammon@mmm.com
Date: Fri Mar 17 2000 - 08:15:07 PST


 There may be a missing tacit assumption.

If the conductor is buried between two ground planes in a homogenous dielectric,
then prop delay is independent of geometry and set only by the permitivity.

But if it is a surface conductor, then changing the geometry changes the
relative
mix of air and circuit board. Under this condition, prop delay can change.

>So, if what Ken says below is true, then Pd does not equal (LC)^(1/2)!!!

Um, why not?

**** To unsubscribe from si-list or si-list-digest: send e-mail to majordomo@silab.eng.sun.com. In the BODY of message put: UNSUBSCRIBE si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP.
si-list archives are accessible at http://www.qsl.net/wb6tpu
****


About this list Date view Thread view Subject view Author view

This archive was generated by hypermail 2b29 : Thu Apr 20 2000 - 11:35:41 PDT