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All,
I am simulating a simple microstrip trace in CST. I am using discrete ports and PML (open + add space) boundary conditions. I notice that S12 does not quite reach 0dB at DC, even with PEC models for the conductors and no dielectric loss.
Is there something I should be doing to get S21...
I am trying to use an ISWITCH model in HSPICE, but it complains that it does not know about that model. Does anyone know the .include I need to use?
What I am trying to do is something like
x1 3 6 VW1 limit
.MODEL limit ISWITCH(Roff=1001 Ron=1 Ioff=-0.99*cl Ion=-1.01*cl)
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