Kim, Oleksiy S.2; Meincke, Peter2; Breinbjerg, Olav2
1 Electromagnetic Systems, Department of Electrical Engineering, Technical University of Denmark2 Department of Electrical Engineering, Technical University of Denmark
An efficient technique based on the Fast Fourier Transform (FFT) for calculating near-field scattering by dielectric objects in layered media is presented. A higher or-der method of moments technique is employed to solve the volume integral equation for the unknown induced volume current density. Afterwards, the scattered electric field can be easily computed at a regular rectangular grid on any horizontal plane us-ing a 2-dimensional FFT. This approach provides significant speedup in the near-field calculation in comparison to a straightforward numerical evaluation of the ra-diation integral since it eliminates the very time-consuming computations of the dy-adic Green’s functions for layered media.
5th International Conference on Antenna Theory and Techniques, 2005, p. 427-429
nearfield; FFT; method of moments; volume integral equation; electromagnetic scattering; higher-order hierar-chical basis functions
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5th International Conference on Antenna Theory and Techniques, 2005