How To Build A Tin Can WiFi Antenna
If you do not have the money for a commercial WiFi antenna and are looking for an inexpensive way to increase the range of your wireless network, This tin can waveguide antenna, or Cantenna, may be just the ticket. This design can be built for under $5 U.S. and reuses a food, juice, or other tin can.
This is a great project to boost the range of your WiFi (or somebody else’s so you can have it for free) It’s cheap and works as good as the commercial antennas you can buy. See how to make your own below.