cr_skyworks said:
Anyone could tell what's the benefits to use this software?
As far as I know, none. Two of the main shortcomings are:
1) It is not of conformal type. It utilizes a staircase mesh.
2) It doesn't stop the the time domain simulation through checking the existing energy inside the simulated structure, nor does it use any type of signal processing method to expedite the simulations for high-Q high frequency passive structures. You just have to do some guess work about the necessary duration of simulation. This issue has been partially addressed in version 7.5.