phased array calibration

Hi to all,
I have to calibrate a phased array antenna (planar array with 19 elements). I am thinkink of using a genetic algorith. With this genetic algorith I would calculate the different 19 phases which i have to send to each antenna element. My doubt is that I don not know if this method takes too much time.

Can someone help me please? Do someone knows another algorithm ?

thank you so much.

J Kraus and R C Hansen have books on how arrays work. That would be a good place to start.