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#1
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Loop fed yagi
I did something like that over a decade ago under
A constant impedance antenna system patent application. What I did was to capacity couple a dipole arrangement which I placed very close to a antenna array to get a constant impedance. The final set up comprises then of two occillators. This coupling method was picked up by a lot of people because of its attribute of removing noise via capacitive coupling. Basically the connecting impedance point travelled along the length of the feed dipole which also provided a broader bandwidth with a stable impedance. |
#2
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Loop fed yagi
On 2/13/2011 7:51 PM, Art Unwin wrote:
I did something like that over a decade ago under A constant impedance antenna system patent application. What I did was to capacity couple a dipole arrangement which I placed very close to a antenna array to get a constant impedance. The final set up comprises then of two occillators. This coupling method was picked up by a lot of people because of its attribute of removing noise via capacitive coupling. Basically the connecting impedance point travelled along the length of the feed dipole which also provided a broader bandwidth with a stable impedance. "picked up by a lot of people because of its attribute of removing noise" Hmm, never heard of it. If it's now effectively spread across the antenna and amateur radio world, pray tell, how does it work? Be specific, give examples. Bet you can't. Because never prove anything, ever. No examples with numerical values available. Well, except that weird piece of crap yagi-ish thing you once published here. The "pickup-sticks yagi" Not a particularly good antenna performance wise. Ok, lousy. tom K0TAR |
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