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| name2 = IEEE K band | freq2 = 18 – 27 GHz | wave2 = 1.67 – 1.11 cm | bands2 = }} K band designates certain portions of the electromagnetic spectrum, in either the microwave domain or in the infrared domain. The microwave K bands are used primarily for radar and satellite communications while the infrared K band is used for astronomical observations. ==NATO K band== The NATO K band is the range of radio frequencies from 20 GHz to 40 GHz in the system of letter designations for frequency bands used by NATO for electronic countermeasure (ECM) applications. This is equivalent to wavelengths between 1.5 cm and 7.5 mm. The NATO K band intersects with the SHF and EHF bands as defined by the ITU. The NATO K band intersects with the K band as defined by the IEEE and contains the Ka band. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「K band」の詳細全文を読む スポンサード リンク
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