The soup can wifi antenna

Cantenna
From Wikipedia, the free encyclopedia
A "cantenna" is also a brand name for a dummy load.


A cantenna.
A cantenna is a directional waveguide antenna for long-range Wi-Fi used to increase the range of (or discover) a wireless network.
Contents [hide]
1 Origin of the name
2 Construction
3 Usage
4 See also
5 External links
6 References
[edit]Origin of the name



Cantenna dummy load suitable up to 30 MHz and up to 1 kW
The term 'Cantenna' originally referred to a product sold by Heathkit Co. in Benton Harbor, MI, USA. It was a 50-ohm resistive load used by radio amateurs.[1] However, in the more casual vernacular of the Do-It-Yourself community, it has functionally become a portmanteau of can (e.g. an empty Pringles can, see below) and antenna, since they're used to broadcast (and receive) signals, and not just terminate them.
[edit]Construction

Although some designs are based on a Pringles potato chip can, in reality this tube is too narrow to be practical.[2], however a cantenna can be made from various cans or tubes of an appropriate diameter.[3] Some designs include a pole mount to elevate the cantenna.[4]
[edit]Usage

While cantennas are useful for extending a wireless local area network (WLAN), the tiny design makes them ideal for mobile applications such as wardriving. The design of the cantenna is so simple that it is often the first antenna WiFi experimenters learn to build. Cantennas can even be used to increase cell phone range,[5] improve reception and decrease noise.
[edit]See also

FON#La_Fontenna, an omnidirectional, cheap and high power antenna to distribute internet access around the world using a series of wireless LAN's
WokFi antenna
WarXing
[edit]External links

Waveguide Can-tenna
Extend your Wireless Network by building a wifi Cantenna
Youtube video on How To Build A low loss Cantenna
How To Build A Tin Can Waveguide Antenna
Wlan antenna Waveguide type
Antenna in a Pringles can
Do-It-Yourself Wireless Antenna Update
Cantenna Calculator
Designs for 2.1GHz, 2.45GHz, 3.5GHz, and 5.8GHz cantennas
Extending Your Wireless Range with a Cantenna
Calculate the dimensions of a cantenna
[edit]References

^ Hutchinson, Chuck. (May 1984). "Heathkit Cantenna, Model HN-31A". QST. p. 42.
^ PC FAQ's: Build a 'Cantenna' Aerial
^ Wlan antenna Waveguide type (includes table of suitable dimensions for cantenna)
^ Cantenna build on a pole (includes construction plans)
^ MAKE: Blog: Cell phone - Cantenna diagram and parts list
Categories: Wireless networking | Radio frequency antenna types

Category:

Education

Tags:

• cantenna

[jamesnyinyiaung]

is that hole is for peaking ur ass?

[WigzellRM]

What frequecy is that good for?

[ryoncooleo]

dafuq?

[smartsoldier132]

@latin90x4 You eather buy a cheap usb wifi adapter, open it up, find the antenna, and sodder the wire from the can to it.

OR

You can bup a pig tail cord, sodier/screw the wire from the can to one end of the wire, then screw the other end of the pig tail cord to a wireless router plug(where the antenna is) or into a wireless card(where the antenna is).

Hope this halped :D

[latin90x4]

im done wit the antena but what do i wit it after im done? how do i connect dis to my computer or router??....

[beltrando]

Nice video, many thanks but just one question please; I have a wireless computer, how do I hook up the wire to my laptop.

Many thanks

[jkaufman101]

Where is Part II? The part about how to connect the antenna to your computer?

[justin10749233]

breath breath!!

[mkdri1]

can you tell me how you figured the measurements of the copper element up for the size and shape of the can? I ask because i have a totally different shape and size can which is smaller so it fits in my backpack better that i want to make this with. It's rectangle shaped, and longer than it is wide. If i could use the formula you used, then the size/shape shouldn't matter. Please msg me with it.

[khonglap]

Thank You very much for your help. This is the best videos ,good idea ,fast way and saving money .You are very smart .