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SparkyGuy wrote:
I believe I tried lengths of a 3% to 5% shorter length with the director, than the drive element (i.e., the one in front of the reflector), settling on a 4% shorter length ... So about 26.8mm square? With a spacing between driven element and director of ~0.2 wavelength, center-to-center. So the director should be 25 mm forward (toward the uwave source) of the driven element? (3e8 / 2.4e9) x 0.2 = ~25mm Do these numbers look right? Thanks. My elements are made from #14 bare copper wire. It is difficult to measure each side, individually, when constructing the antenna. Better to cut the wire to 1 wavelength, then make your bends forming it into a square. Of course, every attempt possible should be made to keep each side 1/4 of this length, exactly. In measuring the one before me, which I constructed, this total length, about the quad, is ~12.5cm. However, here is a calculator I referenced in my constructions: It is a java application, you must have java on your computer. Let me know if you can't access it and I will give you the figures it spits out, 2.4ghz = 2400mhz. Just let me know what wifi channel you wish to center on (frequency.) Regards, JS |
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