On Mon, 28 Nov 2011 21:49:40 -0500 W2PM <[email protected]> wrote: > Why would you do that? > > >> I'm wondering if anyone has ever built or modeled a >>multi-turn flag or pennant antenna. I'm thinking maybe an >>odd number of turns with the resistor in the middle of >>the middle turn. >> --Art Delibert, KB3FJO
Art, I have tried it (what the heck, why not?). Using a 2m x 2m loop, 1m above average ground: The F/B (better than 25 dB) and RDF (7.8 dB) are the same as a single turn loop. Gain is higher by 2 dB (-46 dBi). Needs three separate loads, one on each of the back-side vertical wires. This antenna would be hard to match due to high and highly reactive feed point impedance. I believe it is not worth the trouble for the small increase in gain. Cheers, George, AA7JV _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
