Cantenna Round-Up

Top: Coke cantenna (via: Wikipedia); 2nd row left: Super Cantenna™ with carton; on right coffee cantenna (from: LiquidNitrogen); 3rd row left: Pringles cantenna (from: It should work…); bottom: Budweiser beer cantenna (from: jpizzle)

As mentioned in the previous post about the Heathkit Cantenna, the concept of making antennas out of cans has lately become popular. (“…in the do-it-yourself community, it has come to be used for homemade Wi-Fi antennas made with an empty metal can.”)

The Pringles can must be a particularly good size and shape for this contraption because there are quite a few cantennas out there made from Pringles containers.

And even though most wi-fi “cantennas” are do-it-yourself packaging hacks, there is at least one company that will do it for you. (Super Cantenna)

It bears remembering, however, that it’s not a brand new idea. This item from a 1955 issue of Popular Mechanics show an early precedent (even earlier than Heathkit’s HN-31 Dummy Load Cantenna) for both the concept and the name combining “can” and “antenna.”



  1. says

    Pringles containers are actually not very good for the task, because their diameters are too small. A 3.5-inch diameter is close to ideal.

    A fairly good can, though of less than ideal cylindrical height, is the sort used for selling 330 grams of rolled wafer cookies. (I have one on the table beside me in the cafe where I presently sit.)

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