A systematic approach to EMC engineering and management is the best way of achieving compliance. A.S. De Beer, Ph.D Ruphus Technologies (Pty) Ltd., Lonehill, South Africa ABSTRACT This article focuses on the necessity of following a systematic engineering approach in the design and testing of military and aerospace systems that must comply with stringent EMC Standards. It … [Read more...]
Military
Developments in Lightning Test Standards for Aircraft Avionics
Test standards are running behind the fast pace of technological change Nicholas Wright, EMC-Partner Laufen, Switzerland Introduction Escalating costs and increasing complexity in modern aircraft have ensured that aircraft design and assembly is now a global phenomena. Today, subsystems can be designed, manufactured, and tested at any location around the world, then shipped to … [Read more...]
ZERO GROUND Flexible (for EMI/RFI) Shielded Conduits
ZERO GROUND Flexible (for EMI/RFI) Shielded Conduits eliminate the need for costly, with long lead times and high minimum runs, custom shielded composite assemblies. These conduits are patent pending, utilize industry standard connectors, with most rated for direct burial and provide an excellent solution for those looking to effectively shield internal cables while providing … [Read more...]
2005 Update on Intentional Electromagnetic Interference (IEMI)
IEMI refers to the deliberate attempt to produce EMI to interfere with commercial equipment. Dr. William A. Radasky, Ph.D. Metatech Corporation, Goleta, CA INTRODUCTION Over the past few years several articles have been written by this author and others indicating the threat and importance of intentional electromagnetic interference (IEMI).1–4 Since the publication of the … [Read more...]
Coping with Reflected Power in RF Immunity Systems
EMC system engineers face trade-offs when selecting high power amplifiers for RF immunity testing. During testing, the amplifier must withstand high levels of reflected power. An appreciation of how reflected power affects an amplifier is important if well-informed decisions are to be made. This article uses a simple thought experiment to de-mystify this complex phenomenon and … [Read more...]
Design Considerations for Minimizing Large Aperture Effects in Shielding
Large aperture arrays can present special shielding challenges Ron Brewer, Laird Technologies, Delaware Water Gap, PA Shielding can be used at the systems or PC board level to protect sensitive equipment or circuits from both internal and external RF sources. Large systems can be placed in shielded rooms or even shielded buildings. However, regardless of the size of the … [Read more...]
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