Concept information
Término preferido
millimetric wave
Definición
- Extremely high frequency (EHF) is the International Telecommunication Union (ITU) designation for the band of radio frequencies in the electromagnetic spectrum from 30 to 300 gigahertz (GHz). It lies between the super high frequency band and the far infrared band, the lower part of which is the terahertz band. Radio waves in this band have wavelengths from ten to one millimetre, so it is also called the millimetre band and radiation in this band is called millimetre waves, sometimes abbreviated MMW or mmWave. Millimetre-length electromagnetic waves were first investigated by Indian physicist Jagadish Chandra Bose, who generated waves of frequency up to 60 GHz during experiments in 1894–1896. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Extremely_high_frequency)
Concepto genérico
etiqueta alternativa (skos)
- EHF
- extreme high frequency
En otras lenguas
-
francés
-
EHF
-
extrême haute fréquence
URI
http://data.loterre.fr/ark:/67375/MDL-DDCLHP63-L
{{label}}
{{#each values }} {{! loop through ConceptPropertyValue objects }}
{{#if prefLabel }}
{{/if}}
{{/each}}
{{#if notation }}{{ notation }} {{/if}}{{ prefLabel }}
{{#ifDifferentLabelLang lang }} ({{ lang }}){{/ifDifferentLabelLang}}
{{#if vocabName }}
{{ vocabName }}
{{/if}}