shielding

Discover the exact mathematical solution for far-field shielding effectiveness of solid conducting shields. Learn how reflection, absorption, and multiple-reflection losses combine to determine a shield's ability to block electromagnetic radiation in real-world applications.

This is the second of seven articles devoted to the topic of shielding to prevent electromagnetic wave radiation. This article discusses the normal incidence of a uniform plane wave on a solid conducting shield with no apertures.

This is the first of seven articles devoted to the topic of shielding to prevent electromagnetic wave radiation. The results presented here are valid under the assumption of a uniform plane wave with normal (perpendicular) incidence on a boundary between two media.

In our increasingly electronic world, electromagnetic interference (EMI) poses a significant challenge to the reliability and performance of electronic devices. Shielding is a critical technique used in electromagnetic compatibility (EMC) to mitigate the effects of EMI. This article explores the concept of shielding, its importance in EMC, various shielding materials and their applications, and practical tips for designing effective shielding solutions.

In a recently released compendium, Würth Elektronik presents the basic principles and practice-oriented application examples for modern EMC shielding technologies: In “ABC of Shielding” five expert authors share their knowledge and experience in a concise and easy-to-understand format.

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)...

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.