The spectrum analyzer is the one “go-to” tool for every RF, microwave, and EMC/EMI engineer. In recent years, a new acquisition technology has developed, based on FFT capture and digital signal processing – the real-time (RT) spectrum analyzer. This guide reviews the basics of conventional swept versus real-time spectrum analyzers and highlights some of the recent advances and … [Read more...]
2016 EMC Directory & Design Guide
The 2016 EMC Directory & Design Guide is now available. You will find articles on MIL-STD-461G (A Compleat Review; Why is There Air?); The IEMI Threat and A Practical Response; Have Suspect Counterfeit ESD Packaging & Materials Infiltrated the Aerospace & Defense Supply Chain?; Part One of Assembling a Low Cost EMI Troubleshooting Kit (Radiated Emissions); Multilayer SMD … [Read more...]
Assembling A Low Cost EMI Troubleshooting Kit – Part 1 (Radiated Emissions)
By Kenneth Wyatt Wyatt Technical Services LLC Those of us who are either in-house or independent EMC consultants can benefit greatly by assembling our own EMI troubleshooting kit. I’ve depended on my own kit for several years and it has proven not only valuable, but depicts a sense of professionalism in dealing with your own product development engineers, their managers, … [Read more...]
Is EMC prepared to handle the challenges of the Internet of Things?
By Gunter Langer, Langer EMV-Technik GmbH Contact: k.langer@langer-emv.de, www.langer-emv.de The number of mobile devices such as smart phones, tablets and wearables has risen significantly over the past years. At the same time, wireless communication has increased due to higher data rates. Will the growing number of wireless devices multiply the EMC problems? Is today's … [Read more...]
The IEMI Threat and a Practical Response
William Turner Senior Design Engineer MPE Ltd Email: wturner@mpe.co.uk IEMI Threat With the increasing use of electronics to control so many aspects of modern life, from smart grids to driverless cars, Intentional Electromagnetic Interference (IEMI) is a threat gaining concern. Various initiatives have been set up to address the needs of specific market areas, and new … [Read more...]
What's new: IEC 61000-4-5 Second Edition vs. Third Edition
by Jeff Gray, Chief Technology Officer, Compliance West USA Introduction IEC 61000-4-5 is part of the IEC 61000 series, which describes surge immunity testing caused by over-voltages from switching and lightning transients. The second edition of IEC 61000-4-5 was released in 2005 and has been in use for many years. The third edition was released as an EN standard in 2014. The … [Read more...]
Multilayer SMD Ferrites Optimized for Peak Current Loads
By Markus Holzbrecher 1. Background 1.1. Chip bead ferrites Chip bead ferrites are inductive surface mount devices (SMDs) used for filtering undesired high frequency signal distortions in printed board assemblies. They are manufactured using a multilayer screen printing process. Optimised for as high as possible losses, these components consist of a nickel-zinc-ferrite … [Read more...]
Automatic verification of EMC pulse test equipment by means of the LabView programming environment
By Krzysztof SIECZKAREK1, Adam MAĆKOWIAK1 1Institute of Logistics and Warehousing, Laboratory of Electronic Equipment, Poznań, Poland, LA@ilim.poznan.pl Abstract: The aim of this work was to create an application dedicated to the automatic verification of test equipment used in electromagnetic compatibility testing. In order to perform it the LabView programming environment … [Read more...]
Why ANSI/ESD S20.20 1-Foot Rule for Charge Generators needs to be Increased to 1-Meter for Aerospace & Defense
INTRODUCTION IN THE SEMICONDUCTOR SECTOR TODAY, ESD sensitive devices can be damaged at <+/-50 volts. Aerospace & Defense cannot issue a Return Materials Authorization (RMA) for an ESD sensitive device that fails in space or a nonfunctioning weapon system in-theatre. The fact that extruded film can charge up to over +/- 100,000 volts below 20% RHhas been … [Read more...]
Mobile Generations Explained
The evolving mobile communications technologies provide us with vastly increasing data rates, faster response times and increasingly fluent means to access more content than ever in the history of telecommunications. Along with the development of the standards, the commercial solutions keep appearing for our selection. Often in this highly dynamic environment, the vast amount … [Read more...]
