Relative Dielectric Constant Calculator for a Circular Capacitor

The relative dielectric constant (ε_r) of the dielectric in a parallel plate, circular capacitor can be calculated using the equation below.

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The calculator uses a derivation of Kirchhoff's equation for a circular capacitor and is intended for use with the Accurate Method for Measuring Relative Dielectric Constant of a PCB Using a Vector Network Analyser

[calculation equation]

Where:

r is the Radius in cm

C is the Capacitance in pico Farads

d is the Dielectric thickness in cm

This calculator is provided free by Chemandy Electronics in order to promote the FLEXI-BOX

	INPUT DATA

Enter the value of the capacitor:	pF
Enter the radius of the circle:	cm
Enter the thickness of the dielectric:	mm