This antenna is among the best and most cost-effective things you possibly can construct to extend the vary of your wifi network.  Many of the supplies are probably sitting in your cupboard right now so it actually might be constructed on a shoestring budget.
Invoice of Supplies:
Two milo tins or related
F-Kind chassie mount
Pig story for F to Sma
Quick piece of copper wire
Tools:
Tin snips
Can Opener
Soldering Iron
Drill
Drill Bit
1.Getting ready the cans
Now you'll be able to construct your cantenna with only one tin however chances are you wont meet the instructed overall minimal 3/4 wave size required when using the centenna calculator .  So very first thing to do is go to the cantenna calculator and enter the diameter of the opening of your can in mm.  You will see the overall length on the can down the underside,  in case your single can is simply too quick then you will want to make use of two, Don’t worry should you a bit of over or underneath size nevertheless it should be pretty close.
Alright then what we wish to do is remove the highest of one can and the bottom of the other.  Once you have finished this on the can with the highest eliminated cut out a small strip approx 10mm throughout and 15mm down the can.     Then we're going to use this slit so we can push one can inside the other, The can with the slit will deform slightly however don’t worry about it at this point.
2. Wifi Extender - Joining Cans
Next we have to heat up our soldering iron as we're going to solder these cans together,  You need your iron HOT I put mine on round four hundred C and this seemed to work great.   First thing is to tack the can in place with just a few small solder joints then be certain that your cans are straight and run a great solder bead all the way around.


3.Finishing Edges
As soon as the solder joint cools you will notice the within of the can is a bit raggard and raised.  For this I simply got a large socket on the end of an extension bar and used it to hammer the raised edge down, with a bit of labor you may get the within of the can pretty flat.




4.Essential Element
Next out of your calculator measurement discover the height of your foremost element,  Reduce a bit of copper wire this length and solder to the top of the f-sort connector as proven below.

5.Attaching Foremost Component
Very last thing to do is take a look at your calculations once more you can see the distance the element ought to be from the back of the can, measure this out on the can and drill a gap sufficiently big for it to go through.  As soon as the mount is in place  go around and fully solder it to the can  like in the image below.
At this point you will have a working cantenna , Connect  your piggy tail between it and your wifi card and you're good to go. Keep in mind it is a directional antenna so it must be level within the route of the AP your trying to attach to.

6.Wifi Extender - The Stand
Now what about this stand business,  this actually was me simply mucking about but it turned out to be quiet useful.
What you wish to do is take the bottom of the tin you narrow off and minimize three small triangles out of it evenly round its circumference,  bend the remaning triangles right down to make a sort of tripod shape.   Then you definately need to bend them within the center so the corner of each triangle touches then solder them collectively,  now just solder it to the cantenna.  This might seem a bit foolish however it actually helps when making an attempt to point the antenna and it costs you nothing.
Alrighty your probibly desirous to know  was it worth the effort nicely for me yes.  I've not had a chance to do exensive testing,  however from some primary testing it seems to be giving me a 15db enhance over the inventory d-link antenna which is definitely a massive enhance for the minimal value of the build.