Standard Radar Frequency Letter-Band Nomenclature BandFrequency RangeWavelengthKu band12 GHz – 18 GHz2.5 to 1.7 cmK band18 GHz – 27 GHz1.7 to 1.1 cmKa band27 GHz – 40 GHz1.1 to 0.75 cmV band40 GHz – 75 GHz0.75 to 0.40 cmFrequency band designations – AH Systems www.ahsystems.com › notes › frequency band designations