Helical Antenna Design Calculator

Helical or Helix Antennas transmit a circular polarized wave. Enter the Wavelength, Number of Turns and the space between each coil to calculate the Antenna Gain, wire diameter, Half Power Beam Width, Beam Width First Nulls and Effective Apperature.

Helical or Helix Antenna Design Calculator

  • Wavelength
  • Number of turns
  • Spacing Between Coils (Usually 0.25)
  • Calculate Reset


  • Antenna Gain (dB):
  • Diameter (cm):
  • Half Power BW (Degrees):
  • BW first nulls (Degrees):
  • Effective Apperature (m2):
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