Title :
Application of DCIM to MPIE-MoM analysis of 3D PEC objects in multilayered media
Author :
Liu, Yaxun ; Li, Le-Wei ; Yeo, Tat-Soon ; Leong, Mook-Seng
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
fDate :
2/1/2002 12:00:00 AM
Abstract :
The Formulation-C Green´s functions for multilayered media are reformulated in this paper to extract z-dependent part when the source and observation points are in different layers. The discrete complex image method (DCIM), is applied to obtain complex images independent on z but dependent on z´. For simulation of three-dimensional (3-D) perfectly electrical conduction (PEC) objects penetrating two or more layers, tables of complex images are built in a z´-grid. During the matrix-filling stage of the mixed-potential integral equation, together with method of moments (MPIE-MoM), the spatial-domain Green´s functions are interpolated from values in the z´-grid, while these values are calculated from complex images in the z´-grid. This interpolation scheme is more efficient than those directly storing the spatial-domain Green´s functions. Numerical examples are given for analyzing a dipole in a two-layered media
Keywords :
Green´s function methods; conducting bodies; dipole antennas; electric potential; electromagnetic fields; inhomogeneous media; integral equations; interpolation; matrix algebra; method of moments; 3D PEC objects; DCIM; MPIE-MoM analysis; complex images; dipole antenna; discrete complex image method; interpolation; matrix-filling; method of moments; mixed-potential integral equation; multilayered media; observation points; perfectly electrical conduction objects; simulation; source and observation points; spatial-domain Green´s functions; two-layered media; Associate members; Circuit simulation; Helium; Integral equations; Interpolation; Microwave integrated circuits; Microwave theory and techniques; Moment methods; Surface waves; Transmission line matrix methods;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
