Questions tagged [folded-dipole]
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To folded dipole, or not to folded dipole?
I currently operate a 20M half-wave dipole with a balun. It's a little lower than ideal, but it gets me on the air.
I've read about folded dipoles. But I've found contradicting information about them....
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How to estimate a dipole feedpoint impedance?
An ideal dipole, at resonance, will have an impedance around 73 ohms. A folded dipole, around 280 ohms.
How can I calculate the impedances when not at resonance? Let's assume I have a span of 15M in ...
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Coaxial Folded Dipole Antenna Matching Impedance
In http://www.nsw.wicen.org.au/technical/projects/coaxial-folded-dipole-antenna, the guy is using a 50 ohm coax cable to build a folded dipole antenna and claims that this will enable use at 50 ohm (I ...
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What sort of radiation efficiency can one expect from a folded dipole?
It is pretty well established that folded dipoles have much greater acceptable-SWR bandwidth than ordinary dipoles.
Radiation efficiency is simply the quotient of radiated power to the antenna ...
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4answers
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How does a folded dipole work?
A folded dipole is like an ordinary dipole, but with the ends extended and folded back, until they meet. Although it looks like a loop, I'm told it behaves similarly to a dipole.
How does this thing ...
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Why do folded dipoles have greater bandwidth than ordinary resonant dipoles?
This is something I've read in passing, but never encountered an explanation of why. For example, Wikipedia says:
Another common place one can see dipoles is as antennas for the FM band; these are ...
