Title :
Interior resonance problems associated with hybrid integral equation/partial differential equation methods
Author :
Bo-Syung Yang ; Glisson, A.W. ; Goggans, P.M.
Author_Institution :
Dept. of Electr. Eng., Mississippi Univ., MS, USA
Abstract :
Various methods have been proposed to employ a hybrid surface integral equation/partial differential equation approach, or finite element/boundary element method for electromagnetic scattering problems involving inhomogeneous scatterers. Few investigators, however, have discussed possible problems associated with fictitious interior resonances. It is demonstrated that certain formulations exhibit the interior resonance problem, and that a combination of the finite element method (FEM) and the combined field integral equation (CFIE) can eliminate such problems. In addition, it is demonstrated that the interior and exterior regions can be partially decoupled in a resonance-free manner by using the CFIE/FEM.<>
Keywords :
electromagnetic wave scattering; finite element analysis; integral equations; resonance; CFIE/FEM; EM scattering; combined field integral equation; electromagnetic scattering problems; exterior regions; fictitious interior resonances; finite element method; finite element/boundary element method; hybrid integral equation/partial differential equation methods; inhomogeneous scatterers; interior region; partial resonance-free decoupling; Differential equations; Electromagnetic scattering; Finite element methods; Integral equations; Magnetic fields; Maxwell equations; Moment methods; Partial differential equations; Resonance; System testing;
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.1992.221692
