There are lots of plans on the web for building WIFI antennas.  Try
searching on "pringles can antenna" or "cantenna".  I have a Cantenna I
bought from ebay.  It works great and it even came with a tiny tripod that
fits on the desk.
73, Ken -N5SWR


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Gery Gaubert
Sent: Friday, January 12, 2007 3:21 PM
To: [log in to unmask]
Subject: antenna building


I am studying for my general class license.  I got to the chapters on
antenna design.  I find this very fascinating.  I am curious now.  If
you can build an antenna to work for ham radio, can you build an antenna
to work for a wireless router?  If not why?