Q3D Question

[PFAU_SOVIETSPACE]

Hi Forum Members:
I am currently using ANSOFT's Q3D Version 8.1 as well as the older Version 7.0 The analysis section in Version 8.1 introduces the feature of frequency sweep. I use Version 8.1 to create a pair of differential via ( symmetrical ) and I found out that the Maxwell Capacitance value ( C11 and C22 ) is off by a factor of two ( I anticipate the C11 and C22 should have the same value in this case ).

I re-create the same structure under Version 7.0 ( without frequency sweep ) and the value of C11 and C22 are very close to the same value.

I wonder what might go wrong in this case? Is there are problem with Q3D Version 8.1? Has any member(s) encounter the similar issue in Version 8.1 or they got valid result? Much appreciated for any comment(s).


Regards,
Michael Chan