Article · Wikipedia archive · Last revised Jul 23, 2026

F band (waveguide)

The waveguide F band is the range of radio frequencies from 90 GHz to 140 GHz in the electromagnetic spectrum, corresponding to the recommended frequency band of operation of WR8 waveguides. These frequencies are equivalent to wave lengths between 3.33 mm and 2.14 mm. The E band is in the EHF range of the radio spectrum.

Last revised

Jul 23, 2026

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≈ 1 min

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Waveguide F band
Frequency range	90 – 140 GHz
Wavelength range	3.33 – 2.14 mm
Related bands	W / mm (IEEE) EHF (ITU)

The waveguide F band is the range of radio frequencies from 90 GHz to 140 GHz in the electromagnetic spectrum,¹² corresponding to the recommended frequency band of operation of WR8 waveguides. These frequencies are equivalent to wave lengths between 3.33 mm and 2.14 mm. The E band is in the EHF range of the radio spectrum.

References

References

Victor L. Granatstein (26 March 2012). Physical Principles of Wireless Communications, Second Edition. CRC Press. p. 6. ISBN 978-1-4398-7897-2.
Jonathan Wells (2010). Multigigabit Microwave and Millimeter-Wave Wireless Communications. Artech House. p. 4. ISBN 978-1-60807-083-1.