When a wave is propagated in a good dielectric where σ/ωε

When a wave is propagated in a good dielectric where σ/ωε << 1 the attenuation factor and the phase shift factor are given by—

Refer synopsis

α =	σ	√	μ	, β = ω √με
	2		ε

α =	σ	, β = ω √με
	2

α = σ	√	μ	√	μ	, β =	√	ωμε
		2ε		ε			2