K band

K band is a portion of the electromagnetic spectrum in the microwave range of frequencies ranging between 12 to 63 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). The letter K comes from the German language word kurz, meaning "brief" or "short".

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

See also

• K_a band: K-above band, 18–40 GHz for radar and communications
• K_u band: K-under band, 12–18 GHz for satellite communications

Electromagnetic Spectrum Radio waves | Microwave | Terahertz radiation | Infrared | Optical spectrum | Ultraviolet | X-ray | Gamma ray Visible: Red | Orange | Yellow | Green | Blue | Indigo | Violet

See also: K band, Blue, Electromagnetic spectrum, GHz, Gamma ray, German language, Green, Indigo, Infrared