Title :
Radiation and scattering from complex 3D curvilinear geometries using a hybrid finite element-integral equation approach
Author :
Antilla, G.E. ; Alexopoulos, N.G.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
The radiation and scattering properties are examined for arbitrary curvilinear geometries with very general material composition using parametric cubic geometry representations. The hybrid finite element-integral equation approach is used to take advantage of the strengths of each method. The regions of material composition are handled with the finite element method, since it can readily handle general inhomogeneous material composition. This method is then coupled to an integral equation formulation on the surface of the scatterer, since integral equations are well suited to handle the exterior domain. Both methods are formulated in generalized coordinates, and geometry input can be obtained from several commercial geometry software packages.<>
Keywords :
electromagnetic field theory; electromagnetic wave scattering; finite element analysis; integral equations; EM radiation; EM scattering; complex 3D curvilinear geometries; finite element method; hybrid finite element-integral equation approach; parametric cubic geometry representations; Boundary conditions; Composite materials; Conducting materials; Finite element methods; Geometry; Integral equations; Piecewise linear techniques; Scattering; Testing; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221510
