Title :
Boundary element computations of 3D transient scattering from lossy dielectric objects
Author :
Schlemmer, Erwin ; Rucker, Wolfgang M. ; Richter, Kurt R.
Author_Institution :
Inst. for Fundamentals & Theor. In Electr. Eng., Graz Univ. of Tecnol., Austria
fDate :
3/1/1993 12:00:00 AM
Abstract :
A method for computing the transient scattering from arbitrarily shaped lossy dielectric objects is presented. Starting from Green´s function for lossy media and the surface integral equation formulation of electromagnetic scattering, a combination of integral equations which is capable of dealing with the scattering process in the time domain without instability is given. The discretization of the scatterers using eight-noded boundary elements is discussed. Semidiscontinuous boundary elements are used for objects with edges and vertices. Some examples show the applicability of the method. The results are compared with the analytical solution obtained via the Mie series
Keywords :
Green´s function methods; boundary-elements methods; electromagnetic wave scattering; integral equations; 3D transient scattering; Green´s function; discretization; eight-noded boundary elements; electromagnetic scattering; lossy dielectric objects; semicontinuous boundary elements; surface integral equation formulation; Conductivity; Current density; Dielectric losses; Electromagnetic scattering; Geometry; Green´s function methods; Integral equations; Light scattering; Mie scattering; Time domain analysis;
Journal_Title :
Magnetics, IEEE Transactions on
