designing,feeding,simulating an helical antenna using cstmws

hi,
my project is ENHANCING THE GAIN OF HELICAL ANTENNA BY SHAPING VARIOUS GROUND CONDUCTORS. depending on cstmws we should have to do this project, so please help me by sending necessary materials regarding my project such as basics of cstmws, how to feed&simulate an antenna using cst, how the radiationpattern and gain can be obtained.
please reply me