presentation antenna and parabolic dish

I was hoping someone knew were I can find a power point presentation on parabolic (dish) antenna? Something that shows what it is how it works theory, etc. basically show people on that antenna. Anything would be great even a good paper, I already been to ht**//www.qsl.net/n1bwt/contents.htm and it is not too useful. Please anyone thanks

I suggest you look in a couple of books you can finde here in the forum:

Antenna theory Design and analysis
by C. Balanis

Modern antenna Design
R. Milligan

go to the reflector antenna chapter.....