how to choose optimal length and width of microstrip lines in a patch antenna array

I want to design a patch antenna array but I can t find how I can choose parameters of different feedlines (I ll use microstrip feed method )and how it will be adapted with quarter-wave length transformer .My array will have 4 patches ...

Could you show a schematic of what you want to do? You could just do a parametric sweep in HFSS to optimize the design.