A hybrid method for computing the scattered fields from complex structures

Author

Al-Hekail, Z.O. ; Burnside, W.D.

Author_Institution

Dept. of Electr. Eng., King Saud Univ., Riyadh, Saudi Arabia

Volume

42

Issue

6

fYear

1994

fDate

6/1/1994 12:00:00 AM

Firstpage

847

Lastpage

852

Abstract

A new hybrid method that removes typical discontinuities and singularities of UTD solutions is described and applied to scattering by complex structures. The scattered fields from the structure are first computed on a surface S enclosing it. Then these fields are used to compute an equivalent set of electric and magnetic currents, which are then used to find the scattered fields from the structure. This method can extend the ability of available UTD computer codes to solve for the scattered fields from structures that need special treatment and are nor solvable through direct UTD means. Good agreement is shown between this new hybrid method and moment method results as well as measurements

Keywords

electromagnetic fields; electromagnetic wave diffraction; electromagnetic wave scattering; UTD computer codes; UTD solutions; complex structures; electric currents; hybrid method; magnetic currents; moment method; scattered fields; Electromagnetic measurements; Electromagnetic scattering; Magnetic field measurement; Moment methods; Object detection; Physical theory of diffraction; Shape; Strips; Surface treatment; Surface waves;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.301705

Filename

301705