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problem simulating sweeped COAX cable in ADS

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yefj

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Hello ,I am trying to simulate a coax cable with parametric sweep.
but for some reason i get this massage shown bellow.
Where could be the problem?
Thanks.
1618590020225.png

1618589778823.png
 

You're using extreme values.
Change Iac current ( few mA ) or lower R1.
 

Hello ,I have tried both,still get the same error.
 

I would try to put a large resistor from the Z_Open node to ground.
 

tried that too,i think there is something wrong with this coax components.
 

In ADS there is another coaxial cable model "COAX_MDS" you can try that. As far as I remeber Keysight doesn't reccomend the use of "COAX", but possibly for the transient engine only: not sure.
Furthermore be sure the coax parameter you are using are inside the validity of the model.
 
albbg said:
Furthermore be sure the coax parameter you are using are inside the validity of the model.
Click to expand...
Good point. Presently, you seem to simulate an impossible coax cable with Di = Do.
 

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