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Dipole_folded.php    7038 Bytes    14-06-2022 05:41:05


Folded Dipole Calculator


To be combined with a Yagi Uda Antenna or used as is.




Dipole, folded



Frequency [MHz]

 

Length units

 mm  inch

Length A

 

Length Gap

Length B

 

Radius R

Length C

 

Rod Diameter

Length D

 

Total Length




The impedance of this antenna is around 300 Ω, so you may want to use a 4 : 1 transformer or a λ/4 long piece of 150 Ω coaxial cable to match this impedance to 75 Ω. Geometriy is not that critical. If you want to put this thing outdoors, do not use brass, as it gets brittle.




Downloads








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t1 = 6459 d

t2 = 150 ms

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