square microstrip antenna

sir i m doin my final year b.tech project on design and analysis of square microstrip antenna, i want the field pattern analysis for it and also the matlab coding for its radiation pattern .

Hi,
try this:

http://ece.wpi.edu/mom/index.html

or this

http://www.ece.rutgers.edu/~orfanidi/ewa/

chapter 18


it is matlab code............