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  5. Rendiconti dell'Istituto di Matematica dell'Università di Trieste: an International Journal of Mathematics vol.33 (2001)
  6. Low Frequency Electromagnetic Scattering. The Impedance Problem for a Spere
 
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Low Frequency Electromagnetic Scattering. The Impedance Problem for a Spere

Venkov, George
•
Arnaoudov, Yani
2001
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ISSN
0049-4704
http://hdl.handle.net/10077/4231
  • Article

Abstract
We consider the low-frequency scattering problem of a plane electromagnetic wave by a small sphere, of the boundary of which an impedance condition is satisfied. The impedance boundary condition was introduced by Leontovich (1948) and it accounts for situations where the obstacle is not perfectly conducting but the exterior field will not penetrate deeply into the scatterer. Il provides a method to simulate the material properties of the surface of highly absorbing coating layers. For the near electromagnetic field we obtain the low-frequency coefficients of the zeroth and the first order while in the far field we derive the leading non-vanishing terms for the scattering amplitude, the scattering and the absorption cross-sections.
Series
Rendiconti dell’Istituto di Matematica dell’Università di Trieste. An International Journal of Mathematics
33 (2001)
Subjects
  • wave scattering

  • low-frequency approxi...

  • impedance boundary co...

Publisher
Università degli Studi di Trieste. Dipartimento di Scienze Matematiche
Source
George Venkov and Yarni Arnaoudov, " Low Frequency Electromagnetic Scattering. The Impedance Problem for a Spere", in: Rendiconti dell’Istituto di Matematica dell’Università di Trieste. An International Journal of Mathematics, 33 (2001), pp. 299-311.
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