The designation F-band has multiple frequency designations. There are two nomenclatures for frequency band designations: that of the International Telecommunication Union( ITU) and the IEEE, and the European one. In both nomenclatures, there is the designation F-band.
- In the European nomenclature, in which the frequency bands are arranged alphabetically, the F band follows the E band and covers the frequency range between 3 GHz and 4 GHz. Together with the E band, it is referred to as the E/F band and extends from 2 GHz to 4 GHz. This and the higher frequency bands have higher atmospheric free space attenuation compared to the lower frequency bands. In IEEE nomenclature, this frequency band is listed as S-band.
- According to IEEE, the F-band is a frequency band in the millimeter-wave range between 90 GHz and 140 GHz.
- The F-band is also the frequency band used for the intermediate frequency of Low Noise Converters( LNC) in parabolic antennas. The frequency range of the F-band is between 950 MHz and 1.75 GHz. The extended F-band ranges from 1.75 GHz to 2.15 GHz.