HFSS Frequency Solution

I need with setting frequency solution for a simulation of dual ridged horn antenna that operating from 2GHz to 18GHz.
I have currently set it at 10GHz as I have read a article that states frequency solution is the centre frequency of interest.

Please comment if there is any problem with the set up and if so, please advice on what can be done.

Thank You.

hi
u definition is write but HFSS has one problem in UWB simulation when u used it for UWB application only the result in center is true . can u mail me u HFSS file .

The mesh at centre frequency would not give good results at higher frequency. So please set to the highest frequency.

Try to seperate the whole interested frequency band into two parts, then to carry out the simulation with different frequency solutions.