CST - Non-Ideal DC current source excitation

Hello,

I want to input an non-ideal DC current, may be a DC value with super imposed sine ripple(20kHz), at the cross-sectional face of a wire. And this wire is integrated with non-linear magnetic materials.

 

Can anyone suggest which solver is capable of solving this? I am thinking to go-ahead with Magneto-Quasi static solver (in LF solver).

CST Studio Suite