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Wideband Spiral Helical Cone Antenna for WiFi and FPV

In this video I show you how to build your own helical cone antenna for WiFi and FPV use. The main benefit of this antenna is its wideband properties over a large range of the RF spectrum making this a very useful and practical antenna

<p>Great design. I wondered if you could find someone with a grid dip meter (FET dip meter now) or better yet a spectrum analyzer to see in what frequency range it is actually operating. Since you say the largest part of the coil is 2.4 GHz, I'd guess the ratio to be around 4:1 meaning somewhere above 10 GHz for the other extreme.</p><p>Also, although copper is a bit softer (you could use Styrofoam for a former), it is far more conductive than fence wire which I believe is aluminum giving even better signal levels.</p><p>I'd also be interested in how well the metal cone itself performs. That would drastically change the impedance, though...</p>
<p>I meant use Styrofoam for a permanent former.</p>
<p>Is it better than those NIC antenna's in our wifi cards today like the 802.11 bgn network cards? So this will increase broadcast range and signal broadcast and reception?</p>
<p>Nice antenna design.</p>

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