Ez-12 Parabolic Reflector Template

Download Template
Open in MS Paint and resize as desired. Ensure that you keep the square on the diagram square.
Print image on business card stock or acetate (document protector).
Cut it out and open the six slots with sissors or an X-Acto knife.
Glue tin foil to the back side of the reflector surface
Assemble by placing the six tabs in the six slots.

Note: If printed at the download size you will see about 9 dBi of gain. If you double the size of the image before you print it you will see about 12 dBi of gain. If you place two reflectors on an AP with two antennas you will see an additional increase in performance.

Six inch reflector pattern at 2.4 GHz

Revised Ez-12 Template

source: http://www.freeantennas.com/projects/template2/index.html