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| super high frequency (SHF) |
|---|
| Cycles per second: 3 GHz to 30 GHz | Wavelength: 100 mm to 10 mm
Super high frequency (or SHF) refers to radio frequencies (RF) in the range of 3 GHz and 30 GHz.
Description
The International Telecommunication Union (ITU), a international civil organization established to standardized worldwide telecommunications, have stated that the superhigh frequency is encountered between 10 cm to 1 cm. Microwaves are part of this frequency, but also include ultra-high frequency (UHF) and extremely high frequency (EHF) signals. Super high frequency electromagnetic waves are relatively short for radio waves. This frequency is used for microwave devices, mobile phones (W-CDMA), WLAN, most modern Radars. The commencing Wireless USB technology will be using aprox. 1/3 of this spectrum.
Uses
Some uses are IEEE 802.11a Wireless LANs, Satellite uplink/downlinks and terestrial high-speed data links which are sometimes referred to as "backhauls".
External articles
- Tomislav Stimac, "Definition of frequency bands (VLF, ELF... etc.)". IK1QFK Home Page (vlf.it).
"Super high frequency"