Queries, comments, suggestions? Please contact us.



Area Radio wave propagation / Electromagnetic properties of propagation media

IEV ref 705-03-23

en
characteristic impedance of a medium
the wave impedance for a travelling wave in a specific medium

Note – The characteristic impedance of a homogeneous isotropic medium is given by:

Z i = μ 0 μ _ r ε 0 ε _ r MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meqabaGacmGadiWaaiWabiabciaafiaakeaacaWGAbWaaSbaaSqaaiaacMgaaeqaaOGaeyypa0ZaaOaaaeaadaWcaaqaaiabeY7aTnaaBaaaleaaciGGVbaabeaakmaamaaabaGaeqiVd0gaamaaBaaaleaaciGGYbaabeaaaOqaaiabew7aLnaaBaaaleaacaGGVbaabeaakmaamaaabaGaeqyTdugaamaaBaaaleaacaGGYbaabeaaaaaabeaaaaa@4838@

where
μ0 is the magnetic constant,
μr is the relative complex permeability,
ε0 is the electric constant,
εr is the relative complex permittivity.


fr
impédance intrinsèque (d'un milieu) f
impédance caractéristique d'un milieu (terme déconseillé) f
impédance d'onde pour une onde progressive dans un milieu donné.

Note – L'impédance intrinsèque d'un milieu homogène et isotrope est:

Z i = μ 0 μ _ r ε 0 ε _ r MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meqabaGacmGadiWaaiWabiabciaafiaakeaacaWGAbWaaSbaaSqaaiaacMgaaeqaaOGaeyypa0ZaaOaaaeaadaWcaaqaaiabeY7aTnaaBaaaleaaciGGVbaabeaakmaamaaabaGaeqiVd0gaamaaBaaaleaaciGGYbaabeaaaOqaaiabew7aLnaaBaaaleaacaGGVbaabeaakmaamaaabaGaeqyTdugaamaaBaaaleaacaGGYbaabeaaaaaabeaaaaa@4838@


μ0 est la constante magnétique,
μr est la perméabilité relative complexe,
ε0 est la constante électrique,
εr est la permittivité relative complexe


ar
معاوقة مميزة لوسط

de
Feldwellenimpedanz eines Mediums, f

es
impedancia característica de un medio

it
impedenza caratteristica del mezzo

ko
매질 특성 임피던스

ja
媒質の特性インピ-ダンス

pl
impedancja charakterystyczna środowiska

pt
impedância característica de um meio

sv
vågimpedans i medium

Publication date: 1995-09
Copyright © IEC 2020. All Rights Reserved.