Array pattern in HFSS

Can you help me about array pattern computation . I simulated a 4 element array with 4 port , but the computed gain is element gain not array. in HFSS, which seting is need. is it requiered to add a fee network and combine the ports to 1 ?

have you assigned magnitude to all 4 ports?
is the radiation boundary covering all antennas?

ok , Saras, that problem is solved.

but i have another problem. I add a 90 degree hybide to antenna. for 1 element , everything is ok, but when i add the hybride to the another port too, the software report error ( cannot do mesh generation!)

maybe , the memory is low?

please help me as you know

Arsen1381@yahoo.com

I suggest you re-constuct the model in different dimesions, for example, increase the ABC box or decrease the substrate... Maybe help you!

Regards!
Edmund