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A time-domain approach to the extinction paradox for scattering of electromagnetic waves

Publiceringsår: 2008
Språk: Engelska
Sidor: 1-4
Dokumenttyp: Konferensbidrag


The extinction paradox states that a perfectly electric conducting target which is large compared to the wavelength

removes from the incident radiation exactly twice the amount of power it can intercept by its geometrical cross section

area. In this paper, the extinction paradox is generalized to include temporally dispersive material parameters with finite

values of the permittivity and the permeability. From a time-domain approach it is shown that the high-frequency

limit of the extinction cross section depends on the material parameters of the target and that a limiting value not necessarily

exists. These findings are exemplified by several numerical illustrations with different values of the extinction

cross section in the high-frequency limit.


  • Electrical Engineering, Electronic Engineering, Information Engineering


XXIXth URSI General Assembly 2008
  • Electromagnetic theory-lup-obsolete

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