Abstract

High-power electromagnetics (HPE) treats the common characteristics of those areas of electromagnetics that require consideration of nonlinear processes in the generation or coupling of the HPE fields. Predictions of HPE processes normally require simultaneous solution of Maxwell's equations and equations governing the behavior of the air or other gas in breakdown conditions. That breakdown is in response to the local fields in the air, and can be enhanced by geometry. Common sources of these high fields include lightning, electromagnetic pulse and related phenomena, high-power microwave sources, and other discharges, including electrostatic discharge (ESD). The discharges may take the form of a corona or a long spark. They may be enhanced by local ionizing conditions, like those caused by a nuclear explosion or within a thundercloud. This paper will review the basic concepts and applications of HPE and present some examples.

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