TY - JOUR
T1 - Interaction of electromagnetic waves with 3-D arbitrarily shaped homogeneous chiral targets in the presence of a lossy half space
AU - Wang, Xiande
AU - Werner, Douglas H.
AU - Li, Le Wei
AU - Gan, Yeow Beng
N1 - Funding Information:
Manuscript received November 14, 2006; revised June 20, 2007. This work was supported in part by Temasek Laboratories at the National University of Singapore and in part by The Pennsylvania State University. X. Wang and D. H. Werner are with the Department of Electrical Engineering, The Pennsylvania State University, University Park, PA 16802 USA (e-mail: [email protected]). L.-W. Li is with the Department of Electrical and Computer Engineering, National University of Singapore, Singapore 119260, Singapore. Y.-B. Gan is with Temasek Laboratories, National University of Singapore, Singapore 117548, Singapore. Digital Object Identifier 10.1109/TAP.2007.910336
PY - 2007/12
Y1 - 2007/12
N2 - The interaction of electromagnetic waves with an arbitrarily shaped three-dimensional (3-D) homogeneous chiral object located above a lossy half space is investigated using the method of moments (MoM) via the coupled mixed potential integral equations (MPIEs). Based on the surface equivalence principle, the equivalent surface electric and magnetic currents are used to replace the homogeneous chiral target in the presence of the half space. Two coupled MPIEs are developed for the unknown equivalent surface electric and magnetic currents by utilizing the continuity condition of the tangential total electric and magnetic field components on the chiral body's surface. The well-known Galerkin procedure with Rao-Wilton-Glisson (RWG) basis functions is applied to solve this problem. The spatial domain half-space Green's functions are obtained from the corresponding spectral domain Green's functions via the discrete complex image method (DCIM) combined with the generalized-pencil of function (GPOF) technique. The reciprocity theorem is employed to calculate the far-zone scattered field. Numerical results are presented for characterizing electromagnetic scattering by a 3-D arbitrarily shaped homogenous chiral object located above a lossy half space so as to demonstrate the accuracy and efficiency of the proposed technique.
AB - The interaction of electromagnetic waves with an arbitrarily shaped three-dimensional (3-D) homogeneous chiral object located above a lossy half space is investigated using the method of moments (MoM) via the coupled mixed potential integral equations (MPIEs). Based on the surface equivalence principle, the equivalent surface electric and magnetic currents are used to replace the homogeneous chiral target in the presence of the half space. Two coupled MPIEs are developed for the unknown equivalent surface electric and magnetic currents by utilizing the continuity condition of the tangential total electric and magnetic field components on the chiral body's surface. The well-known Galerkin procedure with Rao-Wilton-Glisson (RWG) basis functions is applied to solve this problem. The spatial domain half-space Green's functions are obtained from the corresponding spectral domain Green's functions via the discrete complex image method (DCIM) combined with the generalized-pencil of function (GPOF) technique. The reciprocity theorem is employed to calculate the far-zone scattered field. Numerical results are presented for characterizing electromagnetic scattering by a 3-D arbitrarily shaped homogenous chiral object located above a lossy half space so as to demonstrate the accuracy and efficiency of the proposed technique.
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U2 - 10.1109/TAP.2007.910336
DO - 10.1109/TAP.2007.910336
M3 - Article
AN - SCOPUS:37249073921
SN - 0018-926X
VL - 55
SP - 3647
EP - 3655
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 12
ER -