Dear Mousa

It does not seem to be a problem for CST. Your material magnetic characteristics will be declared from the nonlinear curve (B x H) then the simulation will take that into account.

Dear Mousa,

It seems to me that with CST or HFSS this issue is not so easy to address. The electromagnetic characteristics depends on what type of domain structure there are in partially magentized ferrites. So I'm not sure that abovementioned MW softs are taking it into account.

See some examples below

Magnetostatic Modes in a Thin Uniaxial Platelet with Bubble Lattice at Normal Magnetization http://onlinelibrary.wiley.com/doi/10.1002/pssa.2211280125/abstract

Magnetostatic Waves in a Thin Uniaxial Platelet with Stripe Domains Magnetized along the Easy Axis http://onlinelibrary.wiley.com/doi/10.1002/pssb.2221700222/abstract

Best Regards

Thanks  Perotoni  & Sorochak

I appreciate your help , after investigation around it seems CST gives the ability to define a full tensor materials , this will make it easier to define ferrites for any magnetization range.

Dear Sir,

no this program are not material program with good magnetic simulation.

At my opinion you must use a magnetic data storage simulation program. 

All the best

F. Gräbner