AN FFT-BASED FORMULATION FOR THE COMPUTATION OF ELECTROMAGNETIC SCATTERING FROM 3-D, PERFECTLY CONDUCTING BODIES
✍ Scribed by T. V. TRAN; A. McCOWEN
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 831 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0894-3370
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✦ Synopsis
An FFT-based formulation for the computation of electromagnetic scattering from 3-D, perfectly conducting objects is presented. The formulation solves the EFIE iteratively via a conjugate gradient scheme and has the major advantage of a low storage requirement for scatterers in the resonance region. This factor, coupled with the low run-times resulting from use of the FFT to compute the associated matrices, makes the formulation a particularly efficient one. Numerical results encompassing current distributions and far-field radar cross-sections are presented for PEC cubes of resonant size. It is shown that the computed results yield good agreement compared with other numerical techniques and experimental data.