We use our online calculator to effortlessly compute the impedance, capacitance, propagation delay, and inductance of a microstrip line on a PCB.
Use this user-friendly online calculator to calculate the impedance, capacitance, propagation delay, and inductance of a Microstrip Line on a Printed Circuit Board (PCB). Enhance your understanding of the electrical transmission line’s attributes and optimize your circuit design accordingly.
Microstrip PCB Impedance formula
![\[z = \frac{{87}}{{\sqrt{{e + 1.41}}}} \cdot \ln\left(\frac{{5.98h}}{{0.8w + t}}\right)\]](https://x-calculator.com/wp-content/ql-cache/quicklatex.com-019546cf26df209d7bcb6697685b1fae_l3.png "Rendered by QuickLaTeX.com")
![\[c = \frac{{2.64 \times 10^{-11} \cdot (e + 1.41)}}{{\ln\left(\frac{{5.98h}}{{0.8w + t}}\right)}}\]](https://x-calculator.com/wp-content/ql-cache/quicklatex.com-9bb2271cd8fce587f1136ffa6bb0bab2_l3.png "Rendered by QuickLaTeX.com")
![\[p = 3.34 \times 10^{-9} \cdot \sqrt{{0.475e + 0.67}}\]](https://x-calculator.com/wp-content/ql-cache/quicklatex.com-27da8c894ede2fe498615a6954905eef_l3.png "Rendered by QuickLaTeX.com")
![\[l = c \cdot z^{2}\]](https://x-calculator.com/wp-content/ql-cache/quicklatex.com-4778d8080873abcda537350e4750d2ac_l3.png "Rendered by QuickLaTeX.com")
where:
- z = Characteristic Impedance
- e = Relative Permittivity
- h = Height of Dielectric
- w = Width of Trace
- t = Trace Thickness
- c = Capacitance per unit length
- p = Effective propagation delay
- l = Inductance per unit length
