During the last five years intentional electromagnetic interference (IEMI) has emerged as a credible and increasingly likely threat to commercial and defence facilities alike, with a potentially crippling cost to individual organizations of such a localized attack. Hollywood has long used electromagnetic interference (EMI) and electromagnetic pulse (EMP) phenomena as the de … [Read more...]
Shielding
- Free Application Study: Controlling the EMI Effects of Avionic Equipment in Aircraft
- Free White Paper: Ensuring Component Reliability: EMI Protection and the Automotive Industry
- Free White Paper: Meeting Medical EMI Standards: Choosing the Right Shielding Approach
- Free Application Study: Controlling EMI in the Microwave/RF Industry
- Free Application Study: EMI Compliance: Choosing the Right Shielding and Gasketing
The Top Five Reasons Products Fail EMI Testing
Introduction The three top product failures I see constantly in my consulting practice are (1) radiated emissions, (2) radiated susceptibility, and (3) electrostatic discharge. After reviewing and testing hundreds of products over the years, I’ve come to the conclusion that products fail these tests for five common reasons (somewhat in order of incidence); PC Board … [Read more...]
Harwin Adds to Unique & Highly Adaptable Board Level Shielding
Assisting engineers dealing with EMI/RFI issues in their PCB designs, Harwin has just announced the introduction of three new shielding cans. Supplied in a tape-and-reel format, these cans increase the company’s existing range of EMC products. The new can dimensions are 10 mm x 10 mm, 15 mm x 10 mm, and 30 mm x 10 mm, all with a 3 mm profile height and 0.15 mm thickness … [Read more...]
Transtector Expands NEMA-Rated Weatherproof Enclosure Line with Lightweight Polycarbonate Cabinets
Transtector Systems, an Infinite Electronics brand and an industry-leading provider of end-to-end power and signal integrity solutions, has expanded its comprehensive line of NEMA-rated equipment enclosures with a new line of polycarbonate-based cabinets that provide weatherproof protection in an ultra-lightweight design. The new TEPC-series enclosure family includes 44 … [Read more...]
Review of Space Applications EMC Requirements
The Contract Having been a long-time manufacturer of oxygen concentrator equipment, when I saw an opportunity to bid on a job to provide an oxygen concentrator system (OCS) for a satellite project I jumped at the chance. The specifications were normal for this type of system and of course electromagnetic compatibility (EMC) requirements were included. Having experience with … [Read more...]
HEMP Protection Strategy for Power System’s Electronic Equipment
Annotation The issue of protecting electronic equipment from the electromagnetic pulse of a high-altitude nuclear explosion is very relevant and important for the power industry. Current knowledge about individual HEMP protection elements, their specifications and application features is very important, but, at the same time, limited to ensure efficient protection of power … [Read more...]
Software-Defined Analog Filters to Modernize and Improve Radio Filters
Filters are some of the most common components found in wireless system designs. They are typically used to block interference from various sources. As limited spectrum resources are allocated to ever increasing number of users, more conflicts between these users arise and more filters are constantly needed. Nowadays, interference is quite common between cellular base stations, … [Read more...]
Cable Discharge Event (CDE)
Abstract Worst-case Cable Discharge Events (CDE) are poorly understood by most of the product developers as the definition of what is about to happen when you plug in a cable into an appliance’s socket. It is NOT the electro-static charge which could be expected on the cable: outer/inner shield(s) + internal wires, while the cable is fully floating prior to the cable … [Read more...]
Conformal Conductive Coating and EMI Shielding
This is a diverse and promising space. In one manifestation, spray-on inks are targeting package-level EMI shielding. Here, they hope to displace sputtering, the incumbent, which benefits from sunk CapEx and lower material consumption costs. They offer low CapEx production in atmospheric conditions and better conformal coverage. Others are developing inkjet printing solutions, … [Read more...]
Updated 52-Page Catalog of EMI/RFI Shielding Solutions
Plymouth, MA.... Available in both interactive PDF and printed versions, the 2018 catalog details all standard and custom EMI/RFI shielding product options. The PDF format lets the user click to download interactive sales drawings on over 150 products, including finger stock profiles, metalized fabric gaskets, fan vents, and board level shielding. The Table of Contents, Part … [Read more...]