senmeis
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- material dissipation factor
Hi,
I have seen two versions of definitions of material dissipation factor Df:
The first one:
Dk (dielectric constant) = K = relative permittivity = ɛ -jɛ’ , ɛ = energy stored and ɛ’ = energy lost.
Df (dissipation factor/loss tangent) = ratio of ɛ’ and ɛ
The second one:
On slide 8 of webinar http://www.globalcommhost.com/roger...17_JC_microstrip_coplanar_stripline_final.pdf:
The imaginary component of complex permittivity is Df (dissipation factor).
Which one is correct?
I have seen two versions of definitions of material dissipation factor Df:
The first one:
Dk (dielectric constant) = K = relative permittivity = ɛ -jɛ’ , ɛ = energy stored and ɛ’ = energy lost.
Df (dissipation factor/loss tangent) = ratio of ɛ’ and ɛ
The second one:
On slide 8 of webinar http://www.globalcommhost.com/roger...17_JC_microstrip_coplanar_stripline_final.pdf:
The imaginary component of complex permittivity is Df (dissipation factor).
Which one is correct?