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Helical Antenna Design Calculator

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Helical Antenna Design Calculator

Find a tube with a circumference equal to one wavelength, and wrap wire in a helix spaced a quarter wavelength






Antenna Calculator Links


Impedance Calculators
These calculators are used by Mantaro engineers and provided freely for your use

J-pole antenna design calculator, K4ABT
For 2 meters, the coil is 4 turns of coax at 5 inches in diameter

J Pole Antenna dimension calculator
The J Pole antenna is a simplified version of the Slim Jim antenna, using the same matching stub principle

Log periodic dipol array
Detail of the end-fed feed of a VHF log periodic dipole array

Log Periodic Dipole Array, LA8OKA
Log Periodic Dipole Arrays, or LPDA is a directional antenna with relatively constant characteristics across it's wide frequency range