I tried changing wire size on my models of the K9AY Loop and Flag, but did
not get the kind of difference you report. With the Flag, I see 2 dB
difference between #14 (1.6 mm) and 1" (25.4 mm) conductor sizes. The K9AY
Loop shows 1 dB difference.
Can you provide more info on the antenna structure and model parameters?
> Hello Guys,
> I have a model for loop antenna. I have noticed that if I increase the
> wire diam. from 0.5mm to say 12mm for a 20m circumfrence wire loop antenna
> the 1.1MHz gain goes up from -28dBi to -13dBi. Increasing the diam. again
> to 100mm the gain is now -5dBi.
> Is the increase in gain due to lower wire resistance or a reduction in the
> loop inductance or both?
> Can I use say 300 Ohm ribbon ( wires in parallel ) to get the same results
> as 12mm diam wire. Also can I use two wires spaced 100mm to simulate a
> 100mm diam wire?
> Andrew G8LUG
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