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The Biquad Yagi has turned out to be an excellent directional antenna. Performing much better than I first thought it would. I did change the measurements from the link here: http://homemakeant.blogspot.co.uk/2008/06/biquad-yagi-24ghz-antenna.html

Although this only has 6 elements, 4 parasitic, 1 driven and 1 reflector it out performs a 15 element Yagi from eBay.

Making this antenna is all about preparation, making the measuring blocks as shown in the video. The video is a little longer than normal but I have included every step needed to build the Biquad Yagi.
A big thanks to Preslav Enchev for sending me the link.


<p>Nous somme en 2015 et vos fabrication sont toujours aussi bien d&eacute;taill&eacute;, merci beaucoup, merci surtout pour la double biquade, pour vos explication point par point, c'est important de savoir pli&eacute; convenanblement ;)</p><div><div><pre>thank you for your tutorial</pre></div></div>
This is good stuff andrew... Thanks,for posting. Does this work on a cellular signal amplifier?
This is good stuff andrew... Thanks,for posting. Does this work on a cellular signal amplifier?
<p>good video matey :-) Would solid 1.5mm or 2.5mm copper wire work given same measurements for elements?</p>
<p>Hi Andrew. Thanks for this. One question. you mention that 31.5mm is in the middle of the 2.4Ghz bandwidth, but that comes out to 2.380Ghz, while Channel 6 is 2.437Ghz. Is there a specific reason why you chose 31.5 as a quarter-wavelength?</p><p>TIA...Eric</p>

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