TY - GEN

T1 - A non-conformal volume surface integral equation for electromagnetic scatterings from composite PEC and inhomogenous anisotropic scatterers

AU - Ng, Tiong Huat

AU - Lee, Jin Fa

AU - Peng, Zhen

AU - Lim, Kheng Hwee

PY - 2013

Y1 - 2013

N2 - This paper presents a non-conformal volume surface integral equation (VSIE) for electromagnetic scatterings from composite structure consisting of perfect electric conductors (PEC) and inhomogeneous anisotropic materials with complex permittivity and permeability tensors. The VSIE can be decoupled into volume integral equation (VIE) and surface integral equation (SIE) for pentrable and non-pentrable scatterers respectively. The volume integral equation (VIE) is solved by applying the gradient-gradient operator on the Green's function which consequentially allows the use of piecewise constant non-conformal tetrahedral meshes. The surface integral equation (SIE) is solved using integral equation discontinuous Galerkin's (IEDG) formulation, which allows the PEC surface to be discretised using non-conformal meshes. The solution of VSIE consists of inner and outer loop solution process. During the inner solution loop, the scatterings from VIE domains and SIE domains are solved as independent domains. At the outer loop solution, their mutual interactions are computed. The iterative inner and outer loop solution is repeated until the solutions of the different domains have converged to the required accuracy.

AB - This paper presents a non-conformal volume surface integral equation (VSIE) for electromagnetic scatterings from composite structure consisting of perfect electric conductors (PEC) and inhomogeneous anisotropic materials with complex permittivity and permeability tensors. The VSIE can be decoupled into volume integral equation (VIE) and surface integral equation (SIE) for pentrable and non-pentrable scatterers respectively. The volume integral equation (VIE) is solved by applying the gradient-gradient operator on the Green's function which consequentially allows the use of piecewise constant non-conformal tetrahedral meshes. The surface integral equation (SIE) is solved using integral equation discontinuous Galerkin's (IEDG) formulation, which allows the PEC surface to be discretised using non-conformal meshes. The solution of VSIE consists of inner and outer loop solution process. During the inner solution loop, the scatterings from VIE domains and SIE domains are solved as independent domains. At the outer loop solution, their mutual interactions are computed. The iterative inner and outer loop solution is repeated until the solutions of the different domains have converged to the required accuracy.

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U2 - 10.1109/APS.2013.6711023

DO - 10.1109/APS.2013.6711023

M3 - Conference contribution

AN - SCOPUS:84894160906

SN - 9781467353175

T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)

SP - 728

EP - 729

BT - 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings

T2 - 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013

Y2 - 7 July 2013 through 13 July 2013

ER -