Evaluating the Level of Electromagnetic Interference Generated by the ESD Source in the TEM-Cell

Abstract

We evaluated the induced electromagnetic interference (EMI) on a monopole and a microstrip line (MSL) generated by an electrostatic discharge (ESD) source in a small-sized TEM-cell. Analytical, quasi-static, and electrodynamic models are presented for calculating the waveforms and amplitudes of currents and voltages induced on the monopole and the MSL. These waveforms are presented for analytical, quasi-static, electrodynamic calculations, and measurements. The maximum deviations of analytical and electrodynamic calculations results for the monopole and the MSL are 25% and 9%. An approach is presented for using half of the coaxial chamber as a matching device between the ESD source and the TEM-cell. The results of calculations and measurements agree well, which indicates the possibility of using a small-sized TEM-cell and half of the coaxial chamber. These devices could be helpful to study the effect of ESD-generated EMI on integrated circuits (IC), electronic component base, and small devices in general.