What is millimeter-wave length?

Millimeter wave (MM wave), also known as millimeter band, is the band of spectrum with wavelengths between 10 millimeters (30 GHz) and 1 millimeter (300 GHz) . It is also known as the extremely high frequency (EHF) band by the International Telecommunication Union (ITU).

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Why is 5G easily blocked?

They can be easily blocked or diffused by physical object (buildings or atmospheric and environmental events) and will have a smaller footprint compared to other waves (2, 3 and 4G)[3]. Also, there might be problems with moving receivers/transmitters[4]. The greater disruption will occur at the higher frequencies.19 Eyl 2019

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