best solution type for filter design in HFSS

filter design in HFSS, which solution type will be best fitted Driven modal or driven terminal and also which excitation should it follow

please anybody can?

For Filter design Driven mode is good specially if it is waveguide based filter. As in S-matrix solutions will be expressed in terms of the incident and reflected powers of waveguide modes.

In case of microstrip based structure you can choose Driven Terminal, as S-matrix solutions of multi-conductor transmission line ports will be expressed in terms of terminal voltages and currents.