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vhfuhfomnidirectionalhelikon

Helikon Antenna

Helikon spiral antenna for VHF/UHF

Source: Rothammel, Vol. 2, Ch. 26.9, p. 163
Input Parameters
MHz
Results
Height (λ/2)
0.5000m
Diameter (λ/4)
0.2500m
Spiral Turns
2#
Gain
3.0dBi
Feed Impedance
50Ω
Diagram
50 Ω coax0.50 m0.50 m
Radiation Pattern
-3 dB-10 dB-20 dB0 dB0°90°180°270°Max: 0.0 dBi