Yagi antenna for the 2.4GHz spectrum (Wi-Fi).  What’s different about this antenna is that it is inside a cantenna giving it more range by narrowing its beamwidth making it more directional than a standard Yagi.
yagi template: https://docs.google.com/file/d/0BzmJxxD-Z4B6WEVnUFN6V2pRMEU/edit?usp=sharing
A good Yagi calculator can be found here: http://www.changpuak.ch/electronics/yagi_uda_antenna.php
Copper foil tape: http://www.ebay.co.uk/itm/360430320375?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
The cantenna is made from a toilet brush holder. These seem to be a standard size but the dimensions are: 265mm length, 90mm diameter.
To test my antennas I use a test router 40 meters away with the signal going through three brick walls.

<p>Andrew,</p><p> Do you think it would A. help, B. hurt C. do nothing either way, if one were to put foil strips on both sides of the plexi glass?</p><p>Thanks</p><p>Tp</p>
<p>can you Give me link Download template because it don't want to download please</p>
<p>There have been numerous requests for the correct dimensions or the download of the template, not just here but also in other place he posted it.</p><p>I guess you can assume that you won't get it as the file is set to view only.<br>For the same reasons I flagged it as incomplete as it is impossible to replicate, the risk of deep frying the WiFi adapter is too high.</p>
<p>Can i use pvc pipe?</p>
Love the concept, so I tried recreating this project with aluminium foil-tape, but my test results came out pretty weak, so I was wondering if you could publish the actual measurements, as I believe the pdf file is slightly off scale (yes I already tried playing with the print settings but no success so far).<br><br>I measured the thickness/width of the elements on the template and it was arround 5.72 mm, but the ebay link for the copper foil tape sells 6mm wide tape, so I guess my template is off? <br><br>I have also been playing around with several calculators and while getting some fairly close values...I would still love to compare them with your original numbers.<br>
<p>Excellent idea, I am ready to boost my wifi. I have a couple of points</p><p>1 - Could you give exact measures from center of first element (the one replace by the can in your setup) and center of last element ?<br>I want to be sure, when printing, that the print is ok sized.</p><p>2 - how much signal do you think will lost without the can/brush-holder, and adding that first element as the other ones ? . A flat yagi is very much appealing for traveling</p><p>Thanks a lot !!</p>
What are the dimensions of the tube, if you please? <br>Thank You
95mm by 265mm<br>hope this helps
Thank You.
it is a grate idea neat and clean . i wish if i can do it for 2.3 ghz <br>
can u use the same sticky copper thats used 4 stain glass windows makers?
sure should be fine as I believe they solder stain glass windows together it would probably be more durable.

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More by andrew mcneil:Double Crosshair Waveguide Antenna for 2 4GHz The Circular Polarized Crosshair Antenna 2,4GHz Combining a Cheap Antenna and Nano Router 
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