LA6NCA RADIO

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I have designed a 2 element Yagi antenna for 50 MHz.
The goal of the project was that it should be as simple as possible to build.
The reflector is made of aluminum tubes. The dipole is made of wire shaped like a V.
The ends of the dipole are connected to an insulator which is a 3D printed coil form.
The end is attached to the reflector.
With this coil, the length of the dipole can be adjusted.


50 MHZ WIRE YAGI
Simulation of the antenna

Wire dipole and wire reflector.
Gain: 5.91dBi
Z= 43 ohm
SWR=1.15
Wire diameter=1mm
REF: Y=0, X=-1436mm --- Y=0, X=+1436mm, L=2872mm
DIPOLE1: Y=1550, X=0 --- X=600mm Y=1045mm, L=1412mm
DIPOLE2: Y=1550, X=0 --- X=600mm Y=-1045mm, L=1412mm

 

Wire dipole and tube reflector.
Gain: 5.91dBi
Z= 40 ohm
SWR=1.25
Wire diameter dipole =2mm
Wire diameter ref. = 6mm
REF: Y=0, X=-1400mm --- Y=0, X=+1400mm, L=2800mm
DIPOLE1: Y=1550, X=0 --- X=600mm Y=1034mm, L=1434mm
DIPOLE2: Y=1550, X=0 --- X=600mm Y=-1034mm, L=1434mm



First test of the tube/wire antenna. It works perfectly.




With this, the dipole can be adjusted to the minimum SWR




STL FILE



STL FILE
RSDOC FILE
Element holder for the reflector.

M

 




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