Equivalent dipole distributions for dielectric spheroidal scatterers

Johan Stén

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)


Equivalent source distributions are identified for dielectric spheroids when immersed in a homogeneous electrostatic field. It is shown that for a prolate spheroid, the volume polarization shrinks into a line dipole distribution lying between the foci of the spheroid. The equivalent charge distributions responsible for the field scattered by an oblate spheroid arise on the circular disk of focal radius.
The solutions give rise to an alternative way of calculating electromagnetic fields near spheroidal particles in the regime of the quasi-static approximation.
Original languageEnglish
Pages (from-to)98-102
JournalAEÜ: Archiv für Elektronik und Übertragungstechnik
Issue number2
Publication statusPublished - 1995
MoE publication typeA1 Journal article-refereed


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