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Re: gEDA-user: Spice Transmission Line Simulation Question


On Aug 7, 2006, at 2:16 PM, User Tomdean wrote:

.model rg_8u LTRA (len=3.2808399 l=.065uh c=24.8pf r=2.3)) 

2.3 ohms/foot? Nope...

The losses do not agree with the mfg datasheet.

A problem with the LTRA model here is that it doesn't account for skin depth. The ohmic loss should be frequency dependent, but with a constant resistance it isn't.

John Doty              Noqsi Aerospace, Ltd.
jpd@xxxxxxxxxxxxx




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