What's New

To help facilitate the safe operation of uncrewed aircraft systems (UAS, otherwise known as drones), the FCC has published new rules applicable to the operation of UAS in the 5 GHz spectrum band.

Ken Wyatt provides an overview of radiated emissions pre-compliance testing. He covers equipment setup, field strength calculations, and strategies for managing ambient interference. The guide aims to enhance EMC troubleshooting skills and reduce formal testing expenses.

The U.S. Food and Drug Administration has updated its list of authorized medical devices that incorporate augmented reality (AR) and virtual reality (VR) technologies.

The FCC is taking steps to ensure that those with disabilities are able to take full advantage of the benefits of videoconferencing technologies.

Patrick André discusses the misconception of "ground" in electrical engineering. He explains the difference between true ground and power/signal returns, emphasizing the importance of proper return line treatment in circuit design. André highlights how this understanding impacts EMC performance and system design across various applications.

As part of a broader effort to expand health outcomes across diverse populations in the U.S., the U.S. Food and Drug Administration (FDA) has published a Discussion Paper to facilitate a public discussion on how to advance health equity in connection with medical devices.

The U.S. Federal Communications Commission is seeking comment on a wide range of changes to its rules applicable to frequency bands used by the Citizens Broadband Radio Service.

This article discusses the risks of electrostatic discharge (ESD) in healthcare settings and the new ESDA TR29 guidance document. It outlines causes of ESD, potential hazards like equipment malfunction and data loss, and preventive measures such as static control flooring, proper grounding, and humidity control. The article also describes recommended ESD control programs for healthcare facilities.

This series of articles delves into the design principles of power filters for switched-mode power converters and similar applications, focusing on conducted and radiated emissions. Part 1 provides an overview of filter design principles, emphasizing the need for specialized approaches to meet EMC specifications in an increasingly electrified and sustainable world.

A Charged Device Model (CDM) simulation method has been demonstrated to predict CDM fail current of receiving circuits with gate oxide connected to pad. This method involves inclusion of 20ps rise time edge into the stimulus. It was shown previously that this fast rise time component of the pulse can cause the gate oxide damage. The simulation method is intended as a schematic-level tool during pre-silicon design phase to deliver CDM ESD protection. Simulation results are verified by silicon results with qualification CDM test on package and Transmission-Line-Pulse (TLP) measurements on wafer-level.