Calculation of Numerical Distance about Vertical Polarization and Horizontal Polarization for Attenuation Function of Earth to Ground Wave.

Keyword

Numerical Distance,Vertical Polarization,Horizontal Polarization,Attenuation Function of Earth,Ground Wave,Wavelength,Electrical Conductivity,Complex Number,Real Part,Imaginary Part,Relative Permittivity of Earth.

Reference

[1]:『電波伝搬ハンドブック』(細矢良雄).

Remarks

・Numerical Distance for Vertical Polarization:ρ=j*π*d/λ*(κ-1-j*60*λ*σ)/(κ-j*60*λ*σ).Reference[1].
・Numerical Distance for Horizontal Polarization:ρ=j*π*d/λ*(κ-1-j*60*λ*σ).Reference[1].
・Imaginary number:j=(-1)^0.5
・Approximation of ρ(Vertical Polarization)=π*d/(60*λ^2*σ).Reference[1].
・Approximation of ρ(Horizontal Polarization)=60*π*d*σ.Reference[1].

History

・2014/07/31:Layout change.
・2009/12/03:Upload.