K band

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ITU Radio Band Numbers 4 5 6 7 8 9 10 11 12

ITU Radio Band Symbols VLF LF MF HF VHF UHF SHF EHF

NATO Radio bands A B C D E F G H I J K L M

IEEE Radar bands HF VHF UHF L S C X Ku K Ka V W edit

Contents 1 NATO K band 2 IEEE K band 2.1 Subdivisions 3 Infrared astronomy K band 4 Name 5 See also

[edit] NATO K band

The NATO K band is defined as a frequency band between 20 and 40 GHz (7.5–15 mm).

[edit] IEEE K band

The IEEE K band is a portion of the electromagnetic spectrum in the microwave range of frequencies ranging between 18 and 27 GHz. K band between 18 and 26.5 GHz is absorbed easily by water vapor (H₂O resonance peak at 22.24 GHz, 1.35 cm).

[edit] Subdivisions

The IEEE K band is conventionally divided into three sub-bands:

• K_a band: K-above band, 26.5–40 GHz, mainly used for radar and experimental communications.
• K-band 18-27 GHz
• K_u band: K-under band, 12–18 GHz, mainly used for satellite communications, terrestrial microwave communications, and radar, especially police traffic-speed detectors.

[edit] Infrared astronomy K band

Infrared astronomers refer to the infrared region around 2.2 micrometres wavelength (136 THz) as K-band.

[edit] Name

The designation "K-band" stems from the German word "kurz" meaning short.^{[citation needed]}

[edit] See also

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

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