4 votes

To folded dipole, or not to folded dipole?

Does a folded dipole really have "wider bandwidth"? Some sources say "yes" because that's what the textbooks say, others say "no", based on their real wold experience A little more, yes, mostly just ...
Phil Frost - W8II's user avatar
4 votes

How does a folded dipole work?

Close coupling between the folded dipole's two long, parallel wires induces a nearly identical current in the "coupled" wire as is impressed on the "driven" wire. (Electromagnetics engineers will see ...
Brian K1LI's user avatar
  • 7,848
4 votes

How does a folded dipole work?

I had the same question for a while, more in reference to resonant loop antennas, but the same principle seems to apply to folded dipoles. Eventually I figured out what I think is going on, and the ...
KE8FVR's user avatar
  • 41
3 votes

Why do folded dipoles have greater bandwidth than ordinary resonant dipoles?

As has been pointed out, one factor of the folded dipole that explains greater bandwidth is that it is effectively thicker. The main reason however is that it's impedance is effectively the parallel ...
Paul's user avatar
  • 87
2 votes

How to estimate a dipole feedpoint impedance?

Read it off this chart: Interferometrist [CC BY-SA 4.0], via Wikimedia Commons A folded dipole with equal-sized conductors has 4x the impedance of an ordinary dipole. The impedance repeats every ...
Phil Frost - W8II's user avatar
2 votes
Accepted

What happens if I “open” a folded dipole so that the two wires are not connected anymore?

If I remove the connection between the two, having essentially a normal dipole with a parallel parasitic dipole next to it, will the antenna exhibit similar characteristics as a folded dipole? No, it ...
hobbs - KC2G's user avatar
  • 12.4k
2 votes
Accepted

How should I stack these folded dipoles?

The info is in the model number BM - Bluewave Marathon E - Exposed offset 139- Frequency F - Gain 5.5dBd N1 - Connector Type H - Horizontal Polarized More info can be found here - Please note ...
Dan K's user avatar
  • 136
2 votes

To folded dipole, or not to folded dipole?

Is it a "miracle antenna" that will work in any band when tuned with a suitable balanced tuner? No more than a regular dipole. A dipole of an appropriate length, fed by ladder line to reduce the ...
hobbs - KC2G's user avatar
  • 12.4k
1 vote

How to estimate a dipole feedpoint impedance?

There are at least two ways. Firstly, you can use the antenna modeller (I prefer cocoaNEC) to estimate an impedance of the antenna at given frequency. From personal experience it doesn't work that ...
Aleksander Alekseev - R2AUK's user avatar
1 vote

How does a folded dipole work?

“ If you want an electric dipole antenna (because that is the desired radiation pattern) folded or straight dipoles should be equivalent if they use the same number of wires with the same spacing. It ...
user17069's user avatar

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