Wi-fi Antenna Parabolic Reflector

This is a parabolic reflector designed to enhance the directionality of a wi-fi router or access point antenna, and to increase the signal strength in that particular direction. It's cheap and easy to make, and involves cutting and glueing, which is always fun.

My router is in the corner of my house, and there's no point illuminating my street with my wi-fi signal since I'm not using it out there. This reflector will bounce all of that signal back into my house and increase the reception. The link (below) where I got the template says it will increase gain by about 9dBi, which is pretty decent. I never got round to doing a before/after measurement, but there was a noticeable improvement. In rooms on the far side of the house where signal had been patchy before, it is now much more reliable.

The antenna on the right with the reflector is set to cover the ground floor. The antenna on the left is aimed at the area where my wife uses her laptop in the bedroom upstairs. There isn't enough space for a reflector there, but the signal is good enough without.

Here is the link where you can download the template and make your own.