Wednesday, November 22, 2017

Why millimeter waves are used in high-definition video applications

Why millimeter waves are used in high-definition video applications
Millimeter waves have a wide range of applications in today’s technologically advanced world. Millimeter waves or hyperfrequency (hyperfrequence) waves have three main traits that influence their use in different applications. These traits include how they interact with the general atmosphere, short wavelengths and wide bandwidth. Common areas where millimeter waves are used include meteorology, medicine, astronomy and communications. The high-frequency electromagnetic waves with a range of 71-95 gigahertz are commonly used for point-to-point communication and high bandwidth applications. The lower frequency of 60GHz is commonly used for short-range data connections like wireless gigabit.
Another common application of millimeter waves is in high-definition video applications. Generally, millimeter waves of hyperfrequencies (hyperfrequences) have the capacity of transmitting large amounts of data. This transmission is done at very high data rates, which make these waves the best for transmitting high-definition videos that require many Gbps to transmit. This also means that millimeter waves provide superior alternatives since they retain the quality of the video. This is unlike other alternative methods of video transmission whereby data is first compressed and then transmitted at Mbps. A typical application in this case would include video transmission from a tablet, laptop or set-top box to HDTV.
Another application can also be video transmission from DVD or game players to TV sets as well as wireless HD projectors and wireless video cameras. The Millimetre wave (millimetrique) can also be found in human body scanners. The scanners used at public installations and airports use millimeter waves. These scanners present a good outline of a person’s body and can reveal any hidden object(s). Initially, these body scanners brought up major concerns in relation to privacy and safety. These factors have since been addressed and now human body scanners use low-power millimeter waves that can get the outline of a person’s body. This is unlike before when the scanners were performing full- body imaging.


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