Yagi design

My friend Basir, wants to make a 900MHz yagi antenna. I recommend using QuickYagi4, a DOS, based freeware software. It's frequency range is from 1.5MHz to 999.999 MHz. Unfortunately cannot be used to design an antenna for the 3G, which uses 2100MHz. But give it a try. I have friends designed 2M antenna with this software and works great.

It can be downloaded from here.