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The K u band (/ ˌ k eɪ ˈ j uː /) is the portion of the electromagnetic spectrum in the microwave range of frequencies from 12 to 18 gigahertz (GHz). The symbol is short for "K-under" (originally German: Kurz-unten), because it is the lower part of the original NATO K band, which was split into three bands (K u, K, and K a) because of the presence of the atmospheric water vapor resonance ...
The IEEE K-band is a portion of the radio spectrum in the microwave range of frequencies from 18 to 27 gigahertz (GHz). The range of frequencies in the center of the K-band between 18 and 26.5 GHz are absorbed by water vapor in the atmosphere due to its resonance peak at 22.24 GHz, 1.35 cm (0.53 in).
The table originated with a recommendation of the fourth CCIR meeting, ... Frequency bands in the microwave range are designated by ... Ku: 10 900 – 20 000: K: 20 ...
Wireless LAN (WLAN) channels are frequently accessed using IEEE 802.11 protocols. The 802.11 standard provides several radio frequency bands for use in Wi-Fi communications, each divided into a multitude of channels numbered at 5 MHz spacing (except in the 45/60 GHz band, where they are 0.54/1.08/2.16 GHz apart) between the centre frequency of the channel.
Toggle the table of contents. ... K a band, a radio frequency band from 26.5 to 40 GHz; K u band, a radio frequency band from 12 to 18 GHz This page was last edited ...
Template: NATO radio band table. ... FREQUENCY : BAND: FREQUENCY (MHz) A: 0 – 250 I: 100 – 150 Band I ... Ku: 10 900 – 20 000 K: 20 000 – 40 000 ...
24 C-band transponders, 12 upper extended C-band transponders, 12 Ku-band transponders, 2 Ku-Beacon transmitters [13] 5 October 2015, Ariane 5 ECA [14] Launched with Australian NBN-Co 1B: 75.0°E: ABS 1: Lockheed Martin Intersputnik: 26 September 1999, Proton: 79.0°E: Esiafi 1, Kazsat 2 (Kazachtan 2) (87°e) HS-351: Tongasat: Comsat: 21 ...
The K a band is more susceptible to rain attenuation than is the K u band, which in turn is more susceptible than the C band. [23] [24] The frequency is commonly used by cosmic microwave background experiments. 5th generation mobile networks will also partially overlap with the K a band (28, 38, and 60 GHz). [citation needed]