The 90 GHz ITU wireless band, as defined by the International Telecommunication Union (ITU) Radio Regulations ITU-R F.2004, is a frequency band that falls within the millimetre wave portion of the radio spectrum, specifically between 92 to 95 GHz. This band is designated for fixed services, meaning it is primarily used for point-to-point wireless communication links. These links can be utilised for various applications, including high-speed wireless broadband services and backhaul connections for mobile networks. The 90 GHz band offers significant bandwidth capacity, enabling high data rate transmission. However, due to the high frequency, it has limited range and is more susceptible to atmospheric attenuation, particularly due to rain.