See how to build a weatherproof compact high gain WiFi antenna for under fifteen dollars! This homemade WiFi antenna should be enough for most applications, since it's three times more powerful than a standard antenna.
For this compact DIY Wi-Fi antenna, you'll need a 12cm x 12cm sheet of brass, a semi-rigid coaxial cable an SMA connector at the end (you can get them at eBay), some 1-1/ square millimeter wire and an old tupperware container. You'll also need some wire cutters, glue, and a soldering iron.
This is a great, sturdy, strong and reliable do-it-yourself WiFi antenna that picks up a great signal!