Slot antenna

Hello,
I am dhiraj from IIT Roorkee, India. I am doing my Masters project in the field of fractal slot antennas.
Currently i am in the starting phase of my work .
I just have some doubts about slot antenna. I would be very greatful , if anyone of you can clear my doubts.:

- What is the basic configuration for slot antenna. like we have groundplane which has a slot cut out on one side of substrate. what i basically wants to know is what will be on the other side of the substrate.

-What are the possible ways in which i can feed a serpinski carpet slot antenna (using CPW as well as microstrip line). following is the link for carpet geometry:
http://mathforum.org/advanced/robertd/carpet.gif

please reply if you know any of these answers. And also provide any links where i can get brief review of basic feeding techniques.

thanks in advance....