TSA vivaldi antenna using cst microwave studio

can anyone help me or guide me or give me steps on how i'm going to design TSA vivaldi antenna using cst microwave studio? i've settled certain part of the vivaldi design for txline part n top vivaldi antenna. but, i don't know how to proceed because i didn't found info for the design using cst.
tq for the help

pls attached your design and frequency details