2.45 GHz Helix Antenna
A last helix to cover all interesting frequencies for FPV.
Antenna dimensions:
- Design frequency 2450MHz
- 8 turns
- Wavelength 0.23
- Internal diameter 41mm
- Wire diameter 2.5mm
- Coil spacing 28mm
- Reflector diameter 80mm
- Wave Trap size 15.2mmx7.6mm
- Feed point height 5mm (wire center), see pictures
![2.45GHz Helix](/img/2011/07/Helix1.jpg)
![2.45GHz Helix](/img/2011/07/Helix2.jpg)
![2.45GHz Helix Feedpoint Complete](/img/2011/07/Feedpoint_Complete.jpg)
![2.45GHz Helix Feedpoint](/img/2011/07/Feedpoint1.jpg)
![2.45GHz Helix Feedpoint](/img/2011/07/Feedpoint2.jpg)
![2.45GHz Helix Feedpoint](/img/2011/07/Feedpoint3.jpg)
![2.45GHz Helix Return Loss](/img/2011/07/Helix_2450MHz_ReturnLoss.png)
![2.45GHz Helix VSWR](/img/2011/07/Helix_2450MHz_VSWR.png)
![2.45GHz Helix Smith chart](/img/2011/07/Helix_2450MHz_SmithChart.png)
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