http://www.zeland.com/ 45 day trial
http://home.ict.nl/~arivoors/ free

trying to do a bit of modeling on these, zeland is proabbly the best but a nightamre to learn ... 4nec2 is pritty simple to sort out but doesnt let u import dxf files or anything like that ...and i can model stuff really fast in solidworks to import into zeland ...... trying to map RF patterns for the silly size dish i got the other day, to find a optimum config and feeds

anyhow anyone used any of these before? need a real dum or stupids tutorials on them that explains everything ...