Publication

Response of shielded cables to an external electromagnetic field excitation. Modeling and experimental validation

Michel Ianoz
1999
Conference Papers

Abstract

Two methods for the calculation of internal responses of shielded cables submitted to an external impulse electromagnetic field are analyzed. One is the classical frequency-domain approach, the second is a new mixed frequency-time-domain model, which uses a link to a well-known transient analysis code. This last feature makes possible the application of the second model to complex networks with several branches. In both models, measured values of the cable transfer impedance values have been used. The comparison between internal currents and voltages calculated with both models and measurements using an EMP simulator shows a reasonable good agreement. These comparisons validate the analyzed models and in particular the new combined frequency-time domain approach

Official source

https://infoscience.epfl.ch/entities/publication/67ed1dd7-e710-4ec9-ade8-0779a8349509

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Michel Ianoz
1999
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/67ed1dd7-e710-4ec9-ade8-0779a8349509

About this result

Related concepts (32)

Electromagnetic shielding

In electrical engineering, electromagnetic shielding is the practice of reducing or blocking the electromagnetic field (EMF) in a space with barriers made of conductive or magnetic materials. It is typically applied to enclosures, for isolating electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs (). Electromagnetic shielding that blocks radio frequency (RF) electromagnetic radiation is also known as RF shielding.

Coaxial cable

Coaxial cable, or coax (pronounced 'koʊ.æks), is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric (insulating material); many coaxial cables also have a protective outer sheath or jacket. The term coaxial refers to the inner conductor and the outer shield sharing a geometric axis. Coaxial cable is a type of transmission line, used to carry high-frequency electrical signals with low losses.

Electrical cable

An electrical cable is an assembly of one or more wires running side by side or bundled, which is used to carry electric current. One or more electrical cables and their corresponding connectors may be formed into a cable assembly, which is not necessarily suitable for connecting two devices but can be a partial product (e.g. to be soldered onto a printed circuit board with a connector mounted to the housing). Cable assemblies can also take the form of a cable tree or cable harness, used to connect many terminals together.

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Response of shielded cables to an external electromagnetic field excitation. Modeling and experimental validation

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