What is millimeter wave technology? Where is millimeter wave used?
As the name depicts, millimeter wave is the name given to radio waves that are between 1mm to 10 mm. Namely, any frequency that is between 30 GHz to 300 GHz is called millimeter wave. It is also known as Extremely High Frequency (EHF). It is also called as mmWave or mmw.
30 GHz means: Since the speed of light in vacuum is 299,792,458 m/s then wavelength will be ~ 10mm
300 GHz means: Since the speed of light in vacuum is 299,792,458 m/s then wavelength will be ~1mm
Why do we need millimeter wave ?
Despite the usage of mmwave in government applications has been well-utilized, millimeter wave consumer applications will be soon entering our lives with the introduction of next generation mobile network 5G systems.
Introduction of multiple wireless devices in every household and work place brought shortage of high speed data. As a result the current infrastructure needed to evolve to meet the data consumption demand. Scientists’ suggestion proved that higher frequency bands would be potentially usable for fast and efficient radio links, but it would require a lot more work to be done.
After completion of many extensive researches and tests, the need for a faster data transmission and global bandwidth shortage forced government officials to allocate part of the spectrum for high speed telecommunication. Since, fast and efficient radio links require more bandwidth in the spectrum; FCC allocated a huge spectrum for commercial use at 60 GHz.
Millimeter wave applications will mostly get famous with the introduction of 5G mobile network systems. Currently, the main application that most of us probably heard or used is the full body scanners at the airports. mmwave applications will also be a big player in the back haul applications side by side with fiber optic networks. High speed data exchange and video streaming applications will be the most used applications in the mmwavewave industry.