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Area Radio wave propagation / Electromagnetic properties of propagation media

IEV ref 705-03-24

en
characteristic impedance of vacuum
the square root Z0 of the magnetic constant μ0 divided by the electric constant ε0

Z 0 = μ 0 ε 0 MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meqabaGacmGadiWaaiWabiabciaafiaakeaacaWGAbWaaSbaaSqaaiGac+gaaeqaaOGaeyypa0ZaaOaaaeaadaWcaaqaaiabeY7aTnaaBaaaleaaciGGVbaabeaaaOqaaiabew7aLnaaBaaaleaacaGGVbaabeaaaaaabeaaaaa@4269@

Note – In the International System of units (SI), the characteristic impedance of vacuum is equal to:

Z0 = c0 · 4π × 10−7 H/m

c0 being the velocity of electromagnetic waves in vacuum; Z0 is approximately equal to 120π Ω or 377 Ω.


fr
impédance (intrinsèque) du vide, f
racine carrée Z0 du quotient de la constante magnétique μ0 par la constante électrique ε0

Z 0 = μ 0 ε 0 MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meqabaGacmGadiWaaiWabiabciaafiaakeaacaWGAbWaaSbaaSqaaiGac+gaaeqaaOGaeyypa0ZaaOaaaeaadaWcaaqaaiabeY7aTnaaBaaaleaaciGGVbaabeaaaOqaaiabew7aLnaaBaaaleaacaGGVbaabeaaaaaabeaaaaa@4269@

Note – Dans le Système International d'unités (SI) l'impédance intrinsèque du vide est égale à:

Z0 = c0 · 4π × 10−7 H/m

c0 étant la vitesse de propagation des ondes électromagnétiques dans le vide; Z0 est approximativement égal à 120π Ω ou 377 Ω.


ar
معاوقة مميزة للفراغ

de
Vakuum-Feldwellenimpedanz, f
Feldwellenimpedanz des leeren Raums, f

es
impedancia característica del vacío

it
impedenza caratteristica del vuoto

ko
진공 특성 임피던스

ja
真空の特性インピ-ダンス

pl
impedancja charakterystyczna próżni

pt
impedância (característica) do vácuo

sv
vågimpedans i vakuum

Publication date: 1995-09
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