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hfdirectionalbeamshortenedcompact

VK2AOU Shortened Beam

VK2AOU compact shortened beam antenna

Source: Rothammel, Vol. 1, Ch. 17.1, p. 286
Input Parameters
MHz
Results
Driven Element (shortened)
6.017m
Reflector
6.297m
Director
5.737m
Loading Inductance
0.38µH
Boom Length
2.120m
Gain
4.0dBd
Feed Impedance
25Ω
Diagram
6.30 mR6.02 mDE5.74 mD1.17 m0.95 mboom: 2.12 m
Radiation Pattern
-3 dB-10 dB-20 dB0 dB0°90°180°270°Max: 8.9 dBiF/B: 12.0 dB