What is mm-Wave (millimetre wave)?

Millimetre-wave is a band of the electromagnetic spectrum. It can be utilized in a broad range of products and administrations, like high velocity, point-to-point wireless local area networks (WLANs) and broadband access. It is the band of range with frequencies between 10 millimetres (30 GHz) and 1 millimetre (300 GHz). It is between the super high-frequency band and the far-infrared band, the lower part of which is the terahertz band.