Super high frequency (or SHF) refers to radio frequencies (RF) in the range of 3 GHz and 30 GHz. Radio frequency ( RF) is a Frequency or rate of Oscillation within the range of about 3 Hz to 300 GHz The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. Also known as the centimeter band or centimeter wave as the wavelengths range from ten to one centimeters. A centimetre ( American spelling: centimeter, symbol cm) is a unit of Length in the Metric system, equal to one hundredth
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Description
The International Telecommunication Union (ITU), an international civil organization established to standardized worldwide telecommunications, have stated that the superhigh frequency is encountered between 100 mm to 10 mm. Microwaves are part of this frequency, but also include ultra-high frequency (UHF) and extremely high frequency (EHF) signals. Microwaves are electromagnetic waves with Wavelengths ranging from 1 mm to 1 m or frequencies between 0 Extremely high frequency is the highest Radio frequency band. Super high frequency electromagnetic waves are relatively short for radio waves. Radio waves are electromagnetic waves occurring on the Radio frequency portion of the Electromagnetic spectrum. This frequency is used for microwave devices, WLAN, most modern Radars. Radar is a system that uses electromagnetic waves to identify the range altitude direction or speed of both moving and fixed objects such as Aircraft, ships The commencing Wireless USB technology will be using approximately 1/3 of this spectrum. Wireless USB is a short-range high-bandwidth Wireless radio communication protocol created by the Wireless USB Promoter Group.
Uses
Some uses are IEEE 802. 11a Wireless LANs, Satellite uplink/downlinks and terrestrial high-speed data links which are sometimes referred to as "backhauls".
See also
External articles
- Tomislav Stimac, "Definition of frequency bands (VLF, ELF... etc.)". In Electromagnetic wave propagation, the knife-edge effect or edge diffraction is a redirection by Diffraction of a portion of the incident Microwaves are electromagnetic waves with Wavelengths ranging from 1 mm to 1 m or frequencies between 0 IK1QFK Home Page (vlf. it).
- Inés Vidal Castiñeira, "Celeria: Wireless Access To Cable Networks"
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