need help ： step by step how measure radiation in CST

hi all
I have a design of an UWB amplifier and a patch antenna connected : i want measure the radiation field in CST
can you give me a step by step guide to implement this ?

suppose u want to measure farfield radiaiton pattern at 3GHZ
1) Sovle-> field monitor
2) check thinks u wants, i.e farfield edt and set the frequency 3GHZ
3) Run the simulation again
4) see the results in farfiled folder on the left side of the tree

ok
thanks a lot
zb