Occasionally, we are asked to help develop shielding effective for near-field low-frequency (LF) magnetic fields, perhaps in a situation where some regulatory agency has imposed limits on LF magnetic field emissions of our product, and we are forced to comply.
Many years ago, the author experimented on a metal enclosure of one of his company’s main products. The experiment involved placing an electric field probe inside the empty metal enclosure (no electronics inside) and applying 10 V/m using the IEC 61000-4-3 radiated RF immunity test system.
Researchers have reportedly developed a new mesh shield that effectively prevents electromagnetic interference (EMI) while also allowing wireless communications. According to a recent article posted on the w... Read More...
Part 2 of this article summarizes the results of recent testing conducted by the author on the shielding effectiveness of screened cables up to 2.8 GHz.
Low-frequency magnetic fields, a type of electromagnetic disturbance commonly found in electric vehicles, can pose potential health hazards to humans and affect the operation of critical EV components. Here are some design techniques to help mitigate the problem.
This article briefly describes the concept of the synergy of filtering and shielding and why knowing it is important.
The shielding performance of bayonet vs. threaded connectors is measured and some possibly surprising conclusions are drawn. Bayonet connectors – more useful than you might think.
If you’re an electrical engineer and consider proper EMC shielding a mechanical only issue, please reconsider your position and keep reading. Proper EMC shielding is both an electrical and mechanical design issue. Thoughtful coordination between the two disciplines is key to successful EMC shielding implementation on most product development projects.
This article provides insight into how shielding is used in product development, in particular the effectiveness of shielding when it is applied at the PCB level.
You’re new to regulatory compliance engineering and you just joined the company fresh out of college. Your boss tells you the company is about to go to production with the latest and greatest product and it has... Read More...