|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
Z= 43 ohm
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
Z= 40 ohm
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
Element holder for the reflector.
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