Super high frequency

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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.

[edit] Description

The International Telecommunication Union (ITU), an 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.

[edit] 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".

Radio spectrum
ELF	SLF	ULF	VLF	LF	MF	HF	VHF	UHF	SHF	EHF
3 Hz	30 Hz	300 Hz	3 kHz	30 kHz	300 kHz	3 MHz	30 MHz	300 MHz	3 GHz	30 GHz
30 Hz	300 Hz	3 kHz	30 kHz	300 kHz	3 MHz	30 MHz	300 MHz	3 GHz	30 GHz	300 GHz

The Electromagnetic Spectrum (Sorted by wavelength, short to long)
Gamma ray \| X-ray \| Ultraviolet \| Visible spectrum \| Infrared \| Terahertz radiation \| Microwave \| Radio waves
Visible (optical) spectrum:	Violet \| Blue \| Green \| Yellow \| Orange \| Red
Microwave spectrum:	W band \| V band \| K band: K_a band, K_u band \| X band \| C band \| S band \| L band
Radio spectrum:	EHF \| SHF \| UHF \| VHF \| HF \| MF \| LF \| VLF \| ULF \| SLF \| ELF
Wavelength designations:	Microwave \| Shortwave \| Mediumwave \| Longwave