What is Millimeter waves (MMW)?
- Millimeter waves (MMW) is electromagnetic waves with the wavelength from 1 to 10 millimeters.
- This waves share the features of microwaves and far infrared waves since its wavelength ranges between these two waves.
MMW application in communications:
- It is generally used for point-to-point transmission technology.
- Basically the band of radio spectrum between 30 Ghz and 300 Ghz of MMW is used for this purpose.
- It is mainly used for connecting internet service to distribution points.
- It is difficult and uneconomical to use MMW for individual residential connections.
Why in news?
Facebook’s Connectivity Lab has set a world record transmitting at nearly 20 Gbps for 13.2 kilometers using Milli Meter Wave (MMW) technology