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Tier 1 · closed-form staples

Half-Wave Dipole Inverted-V Dipole Folded Dipole Quarter-Wave Vertical / Ground-Plane Half-Wave Vertical 5/8-Wave Vertical End-Fed Half-Wave (EFHW)Full-Wave Loop (Quad)Delta Loop Random / Long Wire

Tier 2 · published-design

Yagi-Uda Moxon Rectangle J-Pole / Slim Jim

Tier 3 · complex / niche

Magnetic Loop (Small Transmitting Loop)Discone G5RV Off-Center-Fed Dipole (Windom) All Antenna Models →

Wavelength Velocity Factor Resonant Frequency Balun Ratio SWR Feed Line Loss Bandwidth Loading Coil All Engineering Tools →

Center freq

MHz

Engineering Tool · exact

Balun Ratio

n = √(Z_out / Z_in)

Input impedance Z_in

Ω

Output impedance Z_out

Ω

A 4:1 impedance ratio is a 2:1 turns ratio. Common baluns: 1:1 (50→50), 4:1 (50→200), 9:1 (50→450).

Impedance ratio

4 : 1

Turns ratio

2.000 : 1

Z_out / Z_in

4.000

WP4TZV Antenna Design · datasheet system v1 Region Client-side math · no accounts · works offline