how to calculate return loss and VSWR of rectangular patch antenna?

i want to implement microstrip patch antenna in matlab, can any one help me how to find S11 and VSWR and then plot the results in matlab?
i will be highly obliged.

regards:
waseem afzal

Hi,

Have a look at this article :

mbdergi.pau.edu.tr/eski/index.php/mbdergi/article/download/818/690

If you have the famous book of "Balanis", impedance calculus of μStrip Patch antenna are also explained.

Bye

thnx but
i need matlab code to find and plot vswr and s11....

Google for this book
Antenna and EM Modeling with MATLAB-SergeyN.Makarov.pdf

Best Regards