Estimation of impedance
and capacity of printed circuit boards

This tool helps you to roughly estimate the dimensions of high frequency (HF) printed circuit boards. Please remember that all results are only approximations. The results should only be considered as rough estimations for construction purpose of printed circuit boards but they don't replace professional construction tools such as from Polar Instruments!

Choose the desired case from the drop-down menu. All required input parameters change automatically. Refer to below picture to get help about required input values.

Repeated warning: Results from this tool may differ in high double digit percentage values from professional tools. All results are pure construction estimations to get a guidline only.

Estimation of impedance and capacity of PCBs

Projectname:

Selection:

Embedded Microstrip Stripline Dual Stripline Microstrip Asymmetric Stripline

Width (w)

mm

Height (h)

mm

Height 1 (h1)

mm

Thickness (t)

µm

Rel. permittivity ε_r

mm

Distance (c)

mm

Conditions:

h1 > 1,2 h

Characteristic Impedance Z₀

= Ω

Capacity C₀

= nF/m

Propagation delay t_pd

= ns/m

Inductance L₀

= µH/m

Print results

Estimation of differential impedance of PCBs

Projectname:

Selection:

Differential Microstrip Differential Stripline

Charact. impedance (Z₀)

Ω

Height (h)

mm

Space (s)

mm

Differ. impedance Z_d

= Ω

Print results

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