In message <CALBs-Ti+aoOcfQycr1TTkGEM_rctOP6+uArGyOTTS=YT=xJhsA@...>, dated Sun, 28 Jul 2013, Andy <Andrew.Ingraham@...> writes:
If instead all you have is a physical description of the lines and topologies, then SPICE's standard transmission line element might be the best choice.
One significant effect in PLC is mode conversion; the signal is launched differentially but mode conversion to common-mode occurs at discontinuities in the cables, such as Y-junctions, switches etc. The cables have three conductors and should be treated as 3-wire transmission lines (which is written-up in the literature). So a 3-wire 'cell', used with LTspice's 'array' feature is more appropriate than the standard transmission line.
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OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk
Why is the stapler always empty just when you want it?
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
