Extend Your Wi-Fi Signal with This Super Cheap and Easy-to-Make Directional Biquad Antenna « MacGyverisms :: WonderHowTo
Build Your Own Wi-Fi Antenna
Easy Homemade 2.4 Ghz Omni Antenna - Gumph
How to Make a Wifi Antenna (with Pictures) - wikiHow
Make a DIY Cloverleaf Antenna - Oscar Liang
Amazon.com: Kaunosta High Gain 22dbi WiFi Router Universal Omni-Directional Antenna & 10ft RP-SMA Male to Female Extension Cable for Wireless Network Router, PCI/PCIe Card, USB Adapter, IP Camera : Electronics