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July 25th 06, 07:35 PM
posted to rec.radio.amateur.antenna
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Open-Sleeve Antenna
I came across this in the ARRL Antenna Book (p. 7-21) 20th Edition.
For such a simple set-up, why haven't I heard of anyone using it? I understand some commercial verticals use this design in some way. From what I have read, the open-sleeve design has a simple lambda/4 vertical with two side vertical elements of given d diameter and distance D from the center vertical (monopole). Given the improvement of SWR bandwidth shown, why isn't this a more popular approach? (or is it, and I just don't know it?) John AB8WH |
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