Waveguide Antenna calculator

Information from the ARRL Antenna handbook

Diameter inches

Frequency Mhz
TE11 Cutoff Frequency MHz
TM01 Cutoff Frequency MHz
Guide Wavelength inches
1/4 Guide Wavelength inches
3/4 Guide Wavelength inches

Enter the diameter (inches) above and click on the calculate button.

Diameter cm.

Frequency Mhz
TE11 Cutoff Frequency MHz
TM01 Cutoff Frequency MHz
Guide Wavelength cm
1/4 Guide Wavelength cm
3/4 Guide Wavelength cm

Enter the diameter (cm.) above and click on the calculate button.

NaN (Not a number) means your waveguide diameter is too small to work at the frequency given.