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'''Ka 밴드'''는 26.5-40GHz의 주파수 대역을 말한다.<ref>R. Ludwig, P. Bretchko, ''RF Circuit Design, Theory and Applications'', Prentice Hall NJ, 2000.</ref>
{{DISPLAYTITLE:K<sub>a</sub> band}}
{{MWband
| freq = 26.5{{endash}}40 GHz
| bands = [[K band]]{{,}} [[Ku band]]
}}
Ka 밴드는 [[K 밴드]]의 일부이다. "K-above"를 의미한다.
The '''K<sub>a</sub> band''' (Pronounced: "Kay-A Band") covers the frequencies of 26.5-40GHz<ref>R. Ludwig, P. Bretchko, ''RF Circuit Design, Theory and Applications'', Prentice Hall NJ, 2000.</ref>. The K<sub>a</sub> 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 satellite]]s, [[uplink]] in either the 27.5 GHz and 31 GHz bands<ref>http://www.tech-faq.com/ka-band.shtml</ref>, and high-resolution, close-range targeting [[radar|radars]] aboard military airplanes. Some frequencies in this radio band are used for vehicle speed detection by law enforcement<ref>http://hypertextbook.com/facts/2000/MaxLipkin.shtml</ref>. [[Kepler Mission]] uses this frequency range to downlink the scientific data collected by the space telescope.
The designation "K<sub>a</sub>-band" is from Kurz-above, which stems from the German word "kurz" meaning ''short''.<ref>http://www.itwissen.info/definition/lexikon/K-Band-K-band.html (german)</ref>
==다른 주파수 밴드==
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:
{| class="wikitable"
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