Columns

This article explains how to use a Smith Chart to determine the voltage standing wave ratio (VSWR).

Standards continuously evolve, and EOS/ESD Association, Inc. standards are no different. The ESDA is always striving to achieve the highest quality standards.

Explore the impact of the return path impedance and the return current level on common-impedance coupling between circuits. The measurements presented were performed on a custom PCB containing audio, video, and high-current circuitry, where the return paths for each circuit were selectively shared with other circuits.

Humidity control in relation to an ESD control program continues to be misunderstood across the industry. Humidity does help in the reduction of charge accumulation, but it does not control charge accumulation to reduce the risk to sensitive items.

When traditional EMC troubleshooting tools fall short, the reciprocity theorem can reveal hidden immunity problems. This real‑world case study shows how unexpected RF sources—like walkie‑talkies—can expose susceptibility paths, helping engineers diagnose failures and strengthen designs with simple, effective fixes.

In this article, we investigate the impact of a guard trace on crosstalk reduction and present measurements taken with the latest‑generation PCB, both in time and frequency domains.

This article is the first of a two-article series devoted to the topic of crosstalk between PCB traces. In Part 1 of the series, we vary circuit topology, i.e., the distance between traces and the distance to the ground plane.

The article discusses ESD protection challenges for RF switches in SOI technology. It examines the self-protection mechanism, proposes a behavioral model to simulate ESD response more accurately, and explores predicting failure current levels critical for reliable ESD design.

We are proud to carry on the tradition of sharing Banana Skins for the purpose of promoting education for EMI/EMC engineers.

This article presents the derivation of the radiated far fields from a Hertzian dipole antenna above the ground plane using image theory.