Source: wikibot/multipole-radiation

= Multipole radiation
{wiki=Multipole_radiation}

Multipole radiation refers to the electromagnetic radiation emitted by a system that can be described by the multipole expansion of its electric or magnetic fields. In classical electrodynamics, charge distributions and currents can be represented by a series of terms that describe their contributions to the electromagnetic field, grouped by their symmetry and decay behavior with distance from the source.