The IEEE W Band is a segment of the electromagnetic spectrum that spans frequencies from 75 to 110 GHz. This band falls within the millimetre wave range, characterised by wavelengths between 2.7 and 4 mm. The W Band is utilised in various applications, including radar systems, satellite communications, and experimental research in high-frequency technologies. In radar systems, the W Band offers high resolution and accuracy, making it suitable for applications such as automotive radar, weather monitoring, and military surveillance. Satellite communications benefit from the W Band's ability to support high data rates and its potential for less crowded frequency allocations compared to lower frequency bands. Research in the W Band focuses on developing advanced technologies for wireless communication, imaging, and sensing. The high frequency and short wavelength of the W Band enable the development of compact and efficient antennas and other components, which are crucial for the advancement of next-generation communication systems.
W Band is also used for less-than-lethal weaponry, used to disperse crowds by heating the skin of targeted individuals. Use of the band in these types of applications has lead to widespread misunderstanding of the dangers of mmWave technologies such as 5G.