Electromagnetic Mode Matching simulation

Hello Everybody
I want to purchase a software that simulates Combline and Interdigital filters.
The simulation is called Electromagnetic Mode Matching:
I know of 2 programs that do the Electromagnetic Mode Matching simulation:
1. WASP-NET of MIG
2. mW Wizard of MICIAN
Do you know which one is best?
Regards
Moti Attias

Hi heziat
I worked with MWO wizard and I think it's better than any other software
and it's results are close to experimental results

Mician and Wasp net are good at regular structure, such as rectangular waveguide, circular waveguide. For irregular structure, Hfss and CSt are good choices.

the two is similar teacher and student
waspnet have a MOM method more than uwave