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Volumetric MLFMA formulation for dielectric targets in the presence of a half‐space
Author(s) -
Dong Xiaolong,
Liu Zhijun,
Carin Lawrence
Publication year - 2004
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2003rs002892
Subject(s) - multipole expansion , dielectric , integral equation , surface (topology) , fast multipole method , space (punctuation) , field (mathematics) , situated , electric field , computational physics , mathematics , mathematical analysis , physics , geometry , computer science , quantum mechanics , artificial intelligence , pure mathematics , operating system
The fast multipole method (FMM) and the multilevel fast multipole algorithm (MLFMA) are extended to the analysis of volumetric electric field integral equations (VEFIE) for targets in the presence of a half‐space, to calculate the electromagnetic fields scattered from dielectric scatterers situated above or within a half‐space environment. The “near” interactions are handled via rigorous evaluation of the dyadic Green's functions, by using the discrete complex image technique (DCIT); the “far” interactions are calculated by considering image source elements and groups. Numerical results are presented for comparisons between the VEFIE and surface combined‐field integral equation (SCFIE) MLFMA formulations.