Printed Circuit Boards

This article investigates the impact of ground vias placed in close proximity to high speed differential signal vias and the resulting differential mode to common mode conversion. The work shows the influence of the distance between ground (GND) vias and differential signal (Diff. SIG.); the effect of the asymmetrical configuration of the GND vias; the impact of the dielectric thickness and the number of transitions between the planes.

In this article, we present the analysis of electromagnetic interference (EMI) shielding effects of wireless power transfer (WPT) using magnetic resonance coupling for board-to-board level interconnection. Board-to-board WPT consists of source coil, receiver coil, and load which are manufactured on printed circuit board (PCB).

PC Board EMI

If properly done, PC board (PCB) design control techniques can be the most cost effective means of resolving EMI issues.

Although the foundation of a failure analysis is rooted in science, there is also an art to completing one, successfully. The path from problem discovery to problem solution has many bumps and twists along the way. This article will hopefully help guide you on that journey.