(communications) A band of frequencies extending from 33 to 36 gigahertz, corresponding to wavelengths of 9.09 to 8.34 millimeters.
Sci-Tech Dictionary:
Ka band |
(communications) A band of frequencies extending from 33 to 36 gigahertz, corresponding to wavelengths of 9.09 to 8.34 millimeters.
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Ka-band |
Generally between 18 to 31 GHz.
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ka-band |
Wikipedia:
Ka band |
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The Ka band (Pronounced: "Kay-A Band") covers the frequencies of 26.5-40GHz[1]. The Ka band is part of the K band of the microwave band of the electromagnetic spectrum. This symbol refers to "K-above" — in other words, the band directly above the K-band. The so-called 30/20 GHz band is used in communications satellites, uplink in either the 27.5 GHz and 31 GHz bands[2], and high-resolution, close-range targeting radars aboard military airplanes. Some frequencies in this radio band are used for vehicle speed detection by law enforcement[3]. Kepler Mission uses this frequency range to downlink the scientific data collected by the space telescope.
The designation "Ka-band" is from Kurz-above, which stems from the German word "kurz" meaning short.[4]
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 | 30 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
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