Resistance of microstrip line¶

The resistance of the microstrip line depends on the physical dimensions of the microstrip and the resistance of its surface.

resistance¶: electrical_resistance of the microstrip line.

Symbol:: R
Latex:: \(R\)
Dimension:: impedance

length¶: length of the microstrip.

Symbol:: l
Latex:: \(l\)
Dimension:: length

width¶: Width (see length) of the microstrip.

Symbol:: w
Latex:: \(w\)
Dimension:: length

thickness¶: thickness of the microstrip.

Symbol:: t
Latex:: \(t\)
Dimension:: length

surface_resistance¶: electrical_resistance of the surface of the microstrip.

Symbol:: R_s
Latex:: \(R_\text{s}\)
Dimension:: impedance

law¶

R = (1.4 + 0.217 * log(w / (5 * t))) * R_s * l / (2 * (w + t))

Latex:: \[R = \left(1.4 + 0.217 \log \left( \frac{w}{5 t} \right)\right) \frac{R_\text{s} l}{2 \left(w + t\right)}\]