Ka band

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IEEE Ka band
Frequency range
27–40
mm
Related bands
(ITU)
Radio bands
ITU
1 (ELF) 2 (SLF) 3 (ULF) 4 (VLF)
5 (LF) 6 (MF) 7 (HF) 8 (VHF)
9 (UHF) 10 (SHF) 11 (EHF) 12 (THF)
EU / NATO / US ECM
IEEE
Other TV and radio

The Ka band (pronounced as either "kay-ay band" or "ka band") is a portion of the

Kepler Mission used this frequency range to downlink the scientific data collected by the space telescope.[citation needed
]

The designation "Ka-band" is from Kurz-above, which stems from the German word kurz, meaning "short".[5]

In satellite communications, the Ka band allows higher bandwidth communication.

Iridium Next satellite series;[10] it is also used in medium Earth orbit (MEO) by the SES O3b system;[11] and the James Webb Space Telescope.[12]

Planned future satellite projects using the Ka-band include Amazon's Project Kuiper satellite internet constellation in LEO,[13] SES's multi-orbit satellite internet system of the SES-17 satellite in GEO (launched in October 2021; in position and fully operational in June 2022)[14] and the O3b mPOWER constellation in MEO (first two satellites launched December 2022, nine more 2023-2024, and starting service in Q3 2023).[15][16][17]

The Ka band is more susceptible to

rain attenuation than is the Ku band, which in turn is more susceptible than the C band.[18]
The frequency is commonly used by
cosmic microwave background experiments. 5th generation mobile networks will also partially overlap with the Ka band (28, 38, and 60 GHz).[citation needed
]

See also

References

  1. ^ R. Ludwig, P. Bretchko, RF Circuit Design, Theory and Applications, Prentice Hall NJ, 2000.
  2. ^ "Basics of Space Flight Section I. The Environment of Space".
  3. ^ "Ka Band". 6 April 2019.
  4. ^ Elert, Glenn. "Frequency of a Police Radar Gun".
  5. ^ http://www.itwissen.info/definition/lexikon/K-Band-K-band.html (german)
  6. ^ L/Ku/Ka-band satellites – what does it all mean? Archived 2021-04-30 at the Wayback Machine Get Connected. 11 September 2017. Accessed 27 April 2021
  7. ^ "Inmarsat - Inmarsat Announces $1.2bn Investment in Next Generation Ka-Band Satellite Network - Press Release". Archived from the original on May 11, 2013. Retrieved August 6, 2013.
  8. ^ Kacific Reveals Plans for Second Satellite Via Satellite. 30 October 2020. Accessed 28 April 2021
  9. ^ "SpaceX seeks FCC permission for operating all first-gen Starlink in lower orbit". SpaceNews.com. 2020-04-21. Retrieved 2020-04-23.
  10. ^ Iridium-NEXT Gunter's Space Page. Accessed 28 April 2021
  11. ^ Four New Satellites Ride Into Space To Join Growing SES Constellation Space.com 4 April 2019. Accessed 28 April 2021
  12. ^ James Webb Space Telescope User Documentation - JWST Communications Subsystem Space Terlescope Science Institute. Accessed 28 April 2021
  13. ^ Foust, Jeff (15 December 2020). "Amazon unveils flat-panel customer terminal for Kuiper constellation". SpaceNews. Retrieved 29 December 2020.
  14. ^ SES-17 Ka-Band Satellite is Now Operational Via Satellite. 16 June 2022. Accessed 27 June 2022
  15. ^ SES’ Satellites’ Agility Achieved With ARC and Kythera Space Solutions SatNews. 24 November 2020. Accessed 28 April 2021
  16. ^ "SES YTD 2021 Results" (PDF). SES. 4 November 2021. p. 4. Retrieved 27 January 2022.
  17. ^ SpaceX launches first pair of O3b mPower satellites SpaceNews. 16 December 2022. Accessed 27 December 2022
  18. ^ Miller, Peter. "Ka-Band – the future of satellite communication?" (PDF). Retrieved 2016-07-06.


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