M band

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This article is about the radar band. For other uses, see M band (disambiguation).
NATO M band
Frequency range
60 - 100 GHz
Wavelength range
5 – 3 mm
Related bands
  • V / W (IEEE)
  • EHF (ITU)

M band can refer to two different regions of the electromagnetic spectrum, in the radio and near-infrared.

Radio[edit]

The NATO M band is the range of radio frequencies from 60 GHz to 100 GHz in the system of letter designations for frequency bands used by the NATO for electronic countermeasure (ECM) applications.[1][2] This is equivalent to wavelengths between 5 mm and 3 mm.

The NATO M band is a subset of the EHF band as defined by the ITU.[3] The NATO M band intersects with the V (50–75 GHz) and W band (75–110 GHz) of the older IEEE classification system.[4]

Infrared astronomy[edit]

Atmospheric windows in the infrared. The M band is the transmission window centred on 4.7 micrometres

In infrared astronomy, the M band refers to an atmospheric transmission window centred on 4.7 micrometres (in the mid-infrared).

References[edit]

  1. ^ Leonid A. Belov; Sergey M. Smolskiy; Victor N. Kochemasov (2012). Handbook of RF, Microwave, and Millimeter-Wave Components. Artech House. pp. 27–28. ISBN 978-1-60807-209-5. 
  2. ^ Norman Friedman (2006). The Naval Institute Guide to World Naval Weapon Systems. Naval Institute Press. pp. xiii–xiv. ISBN 978-1-55750-262-9. 
  3. ^ "V.431: Nomenclature of the frequency and wavelength bands used in telecommunications". ITU-R. 2006-01-04. Retrieved 2014-02-03. 
  4. ^ "521-2002 - IEEE Standard Letter Designations for Radar-Frequency Bands". IEEE. 2003-01-14. doi:10.1109/IEEESTD.2003.94224. Retrieved 2014-02-03. (subscription required (help)).