Hosted by!
Microwave Band Designators

Back when radar was young (e.g., World War Two), the military devised a set of band designations for microwaves. I believe there is now an IEEE standard for these designations, but I don't know its number (I think it's specific to radar applications).


Microwave Band Designations
L-Band 1-2 GHz or 15-30 cm wavelength.
S-Band 2-4 GHz or 8-15 cm wavelength.
C-Band 4-8 GHz or 4-8 cm wavelength.
X-Band 8-12 GHz or 2.5-4 cm wavelength.
K-Band 12-18 and 27-40 GHz or 1.7-2.5 and .75-1.2 cm wavelength.
Ku-Band 12-18 GHz or 1.7-2.5 cm wavelength
Ka-Band 27-40 GHz or .75-1.2 cm wavelength.
V-Band 40-75 GHz
W-Band 75-110 GHz
mm-Band 110-300 GHz
u mm-Band 300-3,000 GHz

The K-band is actually split into two bands by a strong water vapor absorption line.


If you'd like more information on how these bands are used by weather radar, check out the Weather Radar FAQ at The MIT Weather Radar Laboratory.


Here are the band designations commonly used for various satellite television systems.

Satellite TVRO Bands
S-Band 1700-3000 MHz
C-Band 3700-4200 MHz
Ku1-Band 10.9-11.75 GHz
Ku2-Band 11.75-12.5 GHz (DBS)
Ku3-Band 12.5-12.75 GHz
Ka-Band 18.0-20.0 GHz


My Home Page / E-Mail Me

Copyright © 1999-2009 by Jim McClanahan All rights reserved.