about divider

Hello!every one
I'm designing a 8-outports divider now. Freq is from 8GHz to 18GHz ,I fell very difficult because the practice is worse than simulation.
i use SERENADE8.71A
Can someone give me a practice ?
Thanks a lot!

You used a wrong simulation softwave. You should use one of EM simulation softwave , such as sonnet, IE3d et..

What type of power divider are you using? If you use typical Walkinson power divider, it may not work. It seems to me that you need a relatively wideband power divider. You may want to search literature on IEEE papers for wideband power divider. Hope this help !!

Place a drawing here incl dimensions. Thi would help us to trace down to the problem.

After simulating by Serenade you must check results by using Ensemble software from Ansoft.