EMC Concepts Explained

This article examines the spread-spectrum frequency dithering technique to reduce the EMI noise from a SMPS.

This column explores the conducted immunity test known as a Bulk Current Injection (BCI) test, according to ISO 11452-4 specification.

This article discusses a practical approach to designing an input filter to the switch-mode power supply (SMPS).

We compare the shielding effectiveness of various solid metallic shields by direct H-field measurements in the near field of the source.

In this article we investigate the frequency behavior of a ceramic capacitor.

This article discusses the crosstalk reduction between PCB traces by utilizing a guard trace between the traces and investigating the effect of the guard trace grounding.

For common-impedance coupling to occur, two circuits must share a current path (with a non-negligible impedance)

This article is devoted to the radiated emissions measurements. These measurements can be performed either at the Open Area Test Site (OATS) or in an Absorber-Lined Shielded Enclosure (ALSE).

The article discusses the behavior of voltage and current waves on a transmission line with different types of loads and explains how to measure the VSWR of an antenna.

This article is devoted to the current method of the conducted emissions measurements.