V band

IEEE V band
Frequency range	40–75 GHz
Wavelength range	7.5–4 mm
Related bands	L / M (NATO); EHF (ITU);

The V band ("vee-band") is a standard designation by the Institute of Electrical and Electronics Engineers (IEEE) for a band of frequencies in the microwave portion of the electromagnetic spectrum ranging from 40 to 75 gigahertz (GHz).^[1]^[2] The V band is not heavily used, except for millimeter wave radar research and other kinds of scientific research. It should not be confused with the 600–1,000 MHz range of Band V (Band Five) of the UHF frequency range.

The V band is also used for high capacity terrestrial millimeter wave communications systems. In the United States, the Federal Communications Commission has allocated the frequency band from 57 to 71 GHz for unlicensed wireless systems.^[3] These systems are primarily used for high capacity, short distance (less than 1 mile or 1.6 km) communications. In addition, frequencies at 70, 80, and 90 GHz have been allocated as "lightly licensed" bands for multi-gigabit wireless communications. All communications links in the V band require unobstructed line of sight between the transmit and receive point, and rain fade must be taken into account when performing link budget analysis.

^ Leonid A. Belov; Sergey M. Smolskiy; Victor N. Kochemasov (2012). Handbook of RF, Microwave, and Millimeter-Wave Components. Artech House. pp. 27–28. ISBN 978-1-60807-209-5.
^ George Kizer (22 May 2013). Digital Microwave Communication: Engineering Point-to-Point Microwave Systems. John Wiley & Sons. p. 62. ISBN 978-1-118-63680-0.
^ FCC Rules, Part 15.255.

[BelovSmolskiy2012-1] Leonid A. Belov; Sergey M. Smolskiy; Victor N. Kochemasov (2012). Handbook of RF, Microwave, and Millimeter-Wave Components. Artech House. pp. 27–28. ISBN 978-1-60807-209-5.

[Kizer2013-2] George Kizer (22 May 2013). Digital Microwave Communication: Engineering Point-to-Point Microwave Systems. John Wiley & Sons. p. 62. ISBN 978-1-118-63680-0.

[3] FCC Rules, Part 15.255.

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