Abstract
AbstractElectromagnetic wave scattering is the reradiation of electromagnetic energy that results when an electromagnetic field encounters an abrupt change in electrical parameters. Typically, this occurs when an electromagnetic field is incident on a structure or scattering object. When the original electromagnetic field crosses the boundary between two regions of different materials, each with different electrical properties, the field will change as it enters the second region. Sources, including conduction, displacement, and polarization currents, will be induced at the discontinuity between the two regions. These currents act as sources of electromagnetic radiation, much like the sources of the original incident electromagnetic field. This reradiation is calledelectromagnetic scatteringbecause it scatters the incident electromagnetic field from its original propagation path.
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