Proceedings Article10.1007/1-4020-0613-6_5926
Electromagnetic interference
Mandeep Kaur,S. Kakar,Danvir Mandal +2 more
- 01 Apr 2011
Vol. 4, pp 1-5
1
TL;DR: Electromagnetic interference (EMI) is a disturbance that affects electrical circuits due to electromagnetic conduction or radiation. It has negative impacts on electronic communication links and systems. The increasing demand and dependence on electromagnetic transmission systems have led to increased electromagnetic radiation, which has the potential to interfere with the normal operation of electronic devices.
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Abstract: In this paper the main motive is to study the Electromagnetic Interference which is very prominent field in today's life. Electromagnetic interference also called radio frequency interference (RFI) is a disturbance that affects an electrical circuit due to either electromagnetic conduction or electromagnetic radiation emitted from an external source. EMI problems have been increasing with the proliferation of mobile electronic systems, wireless communication systems, and computer networks. The electromagnetic spectrum is becoming increasingly crowded. After this the reasons are elaborated; why electromagnetic interference takes place and how it affects the system. The presence of electrical field contributes to the surrounding levels of electrical and electromagnetic noise and interference. The increasing demand and dependence on the use of electromagnetic transmission systems for information technology applications has enabled revolutionary communications capabilities to include cordless communication devices, wireless networking, and satellite communication systems. As the number of these devices increases, there is an increase in electromagnetic radiation within the segments of the electromagnetic spectrum in which these systems operate. These emissions have the potential to interfere with the normal operation of electronic communication links and systems. The electromagnetic energy disrupting the normal operation or function of electronic devices is known as environmental interference (El). The source of El can be categorized as environmental (naturally occurring), incidental or intentional. The effects of El can be significant regardless of their source, however, engineering design and other considerations that can be used to limit the impact and disruption of El on electronic, communication and information systems. As we are aware of the bad impacts of Electromagnetic Interference so main concentration will be on Negative Effects of EMI. In the end of this paper different methods for reducing the EMI and selecting the best one will be discussed.
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Citations
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W.A. Radasky,C.E. Baum,M.W. Wik +2 more
TL;DR: A new threat to civil society has recently emerged, known as intentional electromagnetic interference (IEMI) and covers the threat of intense electromagnetic disturbances that may be applied to the sophisticated electronic systems that are so important to our daily lives.
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Susceptibility of some electronic equipment to HPEM threats
TL;DR: In this article, an overview of the susceptibility of a large number of different electronic devices like computer networks, computer systems, microprocessor boards, microcontrollers, and other basic integrated circuits (ICs) to different threats like electromagnetic pulse (EMP), ultrawideband (UWB), and high power microwave pulses (HPM) is given.
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Survey of worldwide high-power wideband capabilities
TL;DR: Wideband and ultrawideband (UWB) technologies have achieved notable progress in recent years, aided immeasurably by improvements in solid-state manufacturing, computers, and digitizers.
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Dawn of the E-Bomb
TL;DR: High-power microwave (HPM) can induce currents large enough to melt circuitry and even less intense bursts can temporarily disrupt electrical equipment or permanently damage ICs, causing them to fail minutes, days, or even weeks later.
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The re-emission spectrum of digital hardware subjected to EMI
TL;DR: In this article, the emission spectrum of digital hardware under the influence of external electromagnetic interference is used to detect the interaction of the interference with the digital devices at a level well below that which is able to cause static failures in the circuits.