what kind of PML is used in CST MWS?

Hi, all,
I have just read Prof. Taflove's 'Bible' book about FDTD, there are some critical parameters for UPML, such as the number of layer, the reflection coefficient 'R(0)', the order of conductivity updating equation 'm' and also 'Kmax'. it seems that there are a few uncertainties in the setting of UPML.
However, in CST MWS, the setting of PML is almost governed by only two values: the number of layer and the reflection coefficient, it seems to be a very 'robust' PML.
so anybody know what kind of PML is used in CST? tks a lot in advance.

no reply as wll... pls, anybody, any idea?

still no reply.... wait, wait, hopefully...

Hi tenderne,
I guess this a a development internal and only the code developers will now this. I guess they will not give you the details on this..
Maybe you can contact CST directly to check if they are willing to provide this information.
F.

Dear 'RFSimulator',
tk you so much for the reply and kind suggestion. :D
I will try to find out, but frankly speaking, sometime it really not so easy to get any 'internal' information from vendors.
anyway, tks a lot.