Q band

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Q band
Frequency range 33 to 50 GHz
Related bands Ka band
ITU Radio Band Numbers

1 2 3 4 5 6 7 8 9 10 11 12

ITU Radio Band Symbols

ELF SLF ULF VLF LF MF HF VHF UHF SHF EHF THF

NATO Radio bands

A B C D E F G H I J K L M

IEEE Radar bands

HF VHF UHF L S C X Ku K Ka Q V W D

The Q band of the microwave part of the electromagnetic spectrum ranges from 33 to 50 GHz. It sits above, and partly overlaps with, the U.S. IEEE designated Ka band (26.5 to 40 GHz). It sits below the U.S. IEEE designated V band (50–75 GHz) in frequency.

The Q band is mainly used for satellite communications, terrestrial microwave communications and for radio astronomy studies such as the QUIET telescope. It is also used in automotive radar, and radar investigating the properties of the Earth's surface[1]

Other Microwave bands

The microwave spectrum is usually defined as electromagnetic energy ranging from approximately 1 GHz to 100 GHz in frequency, but older usage includes lower frequencies. Most common applications are within the 1 to 40 GHz range. Microwave frequency bands, as defined by the Radio Society of Great Britain (RSGB), are shown in the table below:

L band 1 to 2 GHz
S band 2 to 4 GHz
C band 4 to 8 GHz
X band 8 to 12 GHz
Ku band 12 to 18 GHz
K band 18 to 26.5 GHz
Ka band 26.5 to 40 GHz
Q band 33 to 50 GHz
U band 40 to 60 GHz
V band 50 to 75 GHz
E band 60 to 90 GHz
W band 75 to 110 GHz
F band 90 to 140 GHz
D band 110 to 170 GHz

Footnote: P band is sometimes incorrectly used for Ku Band. "P" for "previous" was a radar band used in the UK ranging from 250 to 500 MHz and now obsolete per IEEE Std 521, see [1] and [2]. For other definitions see Letter Designations of Microwave Bands

References

  1. ^ Atanassov, VB and Balan, MG and Haimov, SJ and Kulemin, GP and Michalev, MA and Mladenov, L.H. and Pedenko, Y.A. and Razskazovsky, VB and Savchenko, AK and Vasilev, VL (1990). "Experimental study of nonstationary X-and Q-band radar backscattering from the sea surface". Radar and Signal Processing, IEE Proceedings F 137 (2): 118–124. doi:10.1049/ip-f-2.1990.0017. 

See also


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