The W band of the microwave part of the electromagnetic spectrum and ranges from 75 to 111 GHz. It sits above the US IEEE designated V band (50-75 GHz) in frequency. It overlaps with the NATO designated M band (60-100 GHz). The W band is not heavily used, except for millimeter wave radar research and other kinds of scientific research.

The band around 77GHz is used for automotive cruise control radar. The atmospheric window at 94GHz is used for imaging mm-wave radar applications in astronomy, defence and security applications.

References

• 5th Framework Programme Information Societies Technologies (IST) - Multifunctional Automotive Radar Network (RadarNet) ^*
• The design of a real-time 94-GHz passive millimetre-wave imager for helicopter operations, R. Appleby, R. Anderton, N. Thomson, J. Jack, Proc. SPIE, 5619, pp. 38 (2004).

External links

• A cloud radar at 94 GHz

Microwave bands