Nick sent in this great build for improving your WiFi connection. There are a lot of different ways to make WiFi antennas, many of them featured on the MAKE blog. This is a nice design based on the Yagi antenna, which has been around since the 1920′s.
I have been playing around with some wifi networking lately, mostly with the La Fonera, and finally decided to build a directional wifi antenna. Although the cantenna, however, I don’t really like Pringles chips and wanted to make something more interesting. I decided to try and make a simple Yagi antenna with a magnetic dipole as the driving element.
Learn how to make your own Yagi WiFi antenna
Related:
DIY USB Wi-Fi antenna made from a strainer
Good job on that Yagi antenna! For more long range antennas, havea look at my construction guides at:
http://www.ab9il.net/wifi1.html
For popular USB wireless adapters there are also external antenna mods that work great. You can get much better performance with simple mods (generally no need for amplifiers).
Regards,
Phil AB9IL