Antenna Model · Designer · closed-form
Half-Wave Dipole
length = factor × λ × k · λ = 41.93 m @ 7.150 MHz
FIG.1 · HALF-WAVE DIPOLE
Total length
19.916m
Each leg (from center)
9.958m
Accuracy note
±~2%, cut a little long and trim to resonance.
±~2%, cut a little long and trim to resonance.
Method closed-form Cite ARRL Antenna Book Feed ~73 Ω (1:1 balun to 50 Ω coax).
- Center-fed, halves fed against each other.
- Height ≥ λ/4 for a usable low-angle pattern.