7-7 wrote on Feb 8th, 2009, 1:43am:I take it also to mean that I would have to do the harmonic analysis of the step slope.
What do you mean by "harmonic analysis" ?
7-7 wrote on Feb 8th, 2009, 1:43am:In that case, how do I do the harmonic analysis of the step of my previous example, from 2 A to 1000 A in 10^-3 sec ? Could you give me the full procedure and result ?
Generally use Transient Analysis. But about details of procedure, it depends on what simulator engine you have.
For example, if you approximate step signal as periodical pulse signal with long period, you can use Harmonic Balance Analysis with pure frequency domain description of skin effect for model of line.
See TLINP (2-Terminal Physical Transmission Line) of chap-7 in the following.
http://cp.literature.agilent.com/litweb/pdf/ads2005a/pdf/ccdist.pdfhttp://www.designers-guide.org/Forum/YaBB.pl?num=1227194040If you use Agilent ADS, you can use various line models such as "TLINP" in Transient Analysis.
If you use Synopsys HSPICE, you can use "W-Element" in Transient Analysis.
If you use Cadence Spectre, you can use "mtline" in Transient Analysis.
Also you can make original line model with skin effect.
http://www.designers-guide.org/Modeling/ind.pdfhttp://www.designers-guide.org/Modeling/suite.pdf