Example 622 µm geometry
Width 622 µm, gap 254 µm, height 508 µm, permittivity 3.66, 28 GHz.
Worked example
Characteristic impedance 60.637 ohm
Equation
Z0 = 60*pi/sqrt(eps_eff) / (K(k1)/K'(k1) + K(k2)/K'(k2))
Effective permittivity 2.532
Equation
eps_eff uses the ratio of the two elliptic ratios.
Dielectric loss 1.4382 Np/m
Equation
alpha_d = pi*f*sqrt(eps_eff)/c * er*(eps_eff-1)/(eps_eff*(er-1)) * tan delta. Unit: Np/m.
This result needs: conductivity, Phi factor.
This result needs: conductivity, roughness Rz.
This result needs: maximum frequency.
Dielectric loss and conductor loss are in nepers per metre (Np/m).
The starting size is 622 µm by 254 µm gaps on 508 µm height, at 28 GHz.