Tin-can antennas for the last mile

An Italian physics research institute has developed a low-fi, low-cost wi-fi antenna for communication purposes in the third world: the tin-can antenna. That thing that we all used as children to make our first telephone calls has been rediscovered, only without the string: The “cantenna” is made from a can, a screw-on connector and a short brass wire and is basically a satellite dish in the form of a can which works in a mono-directional way. The only difference is its production costs which are an estimated €2.00 ($2.40).
“Make your own” in this easy to follow article.