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IEVref: | 121-12-14 | ID: | |

Language: | en | Status: Standard | |

Term: | complex relative permittivity | ||

Synonym1: | relative complex dielectric constant [Deprecated] | ||

Synonym2: | |||

Synonym3: | |||

Symbol: | ε_{r}
| ||

Definition: | under sinusoidal conditions in a medium where the phasors and D representing respectively the electric flux density and the electric field strength are linearly related, complex quantity Eε_{ r} defined by the relation
ε_{0}ε_{ r} E
where Note 1 to entry: The complex relative permittivity is generally frequency dependent. For an isotropic medium, the complex relative permittivity is a scalar quantity; for an anisotropic medium, it is a tensor quantity. Note 2 to entry: Generally, | ||

Publication date: | 2019-10 | ||

Source: | |||

Replaces: | 121-12-14:1998-08 | ||

Internal notes: | |||

CO remarks: | |||

TC/SC remarks: | |||

VT remarks: | |||

Domain1: | |||

Domain2: | |||

Domain3: | |||

Domain4: | |||

Domain5: |

__D__ =

where *ε*_{0} is the electric constant

Note 1 to entry: The complex relative permittivity is generally frequency dependent. For an isotropic medium, the complex relative permittivity is a scalar quantity; for an anisotropic medium, it is a tensor quantity.

Note 2 to entry: Generally, __ε___{r} is expressed as __ε___{ r} = *ε'*_{ r} − j*ε''*_{r} where *ε'*_{r} is the real relative permittivity and *ε''*_{r} is the dielectric loss index, which represents dielectric losses.