Microstrip Line Calculator
This calculator computes the characteristic impedance of a microstrip line. The impedance is a function of
the width of the microstrip, its thickness, and the dielectric constant of the substrate.
Example Calculation
For a microstrip with a width of 3 mm, a thickness of 1.5 mm, and a dielectric constant of 4.4, the impedance
is:
\[
Z_0 \approx 60 \cdot \log \left( \frac{8h}{W + 4h} \right) \cdot \frac{1}{\sqrt{\varepsilon_r}}
\]
Substituting \( W = 3 \, \text{mm}, \, h = 1.5 \, \text{mm}, \, \varepsilon_r = 4.4 \), we get:
\[
Z_0 \approx 60 \cdot \log \left( \frac{8 \cdot 1.5}{3 + 4 \cdot 1.5} \right) \cdot \frac{1}{\sqrt{4.4}}
\approx 50.5 \, \Omega
\]
