K band


K band

NATO K band

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

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).

ubdivisions

The IEEE K band is conventionally divided into three sub-bands:
*Ka band: K-above band, 26.5–40 GHz, mainly used for radar and experimental communications.
*K-band 18-27 GHz
*Ku band: K-under band, 12–18 GHz, mainly used for satellite communications, terrestrial microwave communications, and radar, especially police traffic-speed detectors.

Infrared astronomy K band

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

Name

The designation "K-band" stems from the German word "kurz" meaning "short". [http://www.itwissen.info/definition/lexikon/K-Band-K-band.html (german)]

ee also

References


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