Application of the spectral domain approach for numerical solution of electromagnetic scattering from corner reflectors, prisms and rectangular plates
Abstract
The application of the spectral domain approach for solving electromagnetic scattering problems is illustrated for a general class of two- and three-dimensional geometries, namely, the corner reflector, the triangular cylinder or the prism, and a flat plate. A matrix technique is introduced, and numerically computed far-field patterns obtained through the spectral domain approach are compared with those obtained by the space domain approach. The spectral domain approach is capable of transforming a convolution integral into a product, saving an integration process, and it is a one-step method as compared to the two steps required by the space domain approach. A drawback of the spectral domain approach, however, is the difficulty in finding the Fourier transform of the expansion functions appropriate for the geometry of the scatterer when it is complex.
- Publication:
-
Archiv Elektronik und Uebertragungstechnik
- Pub Date:
- August 1975
- Bibcode:
- 1975ArElU..29..323L
- Keywords:
-
- Electromagnetic Scattering;
- Numerical Analysis;
- Prisms;
- Rectangular Plates;
- Spectrum Analysis;
- Current Distribution;
- Cylindrical Shells;
- Far Fields;
- Flat Plates;
- Reflectors;
- Communications and Radar