The use of ´near-self´ impedance elements in the MM solution for scattering from composite bodies with thin features

Author

Goggans, P.M. ; Kishk, A.A. ; Glisson, A.W.

Author_Institution

Dept. of Electr. Eng., Mississippi Univ., University, MS, USA

fYear

1991

fDate

24-28 June 1991

Firstpage

1484

Abstract

To demonstrate the calculation of scattered fields from bodies with thin features, near-self impedance element, calculation has been incorporated into the two-dimensional MM (moment method) program of P.M. Goggans and T.H. Shumpert (1990). This MM program solves the combined-field integral-equation for composite bodies using linear zones with pulse current expansion functions and point matching (delta function testing). The bistatic RCS (radar cross section) of a dielectric-coated conducting cylinder for a TE-polarized incident wave is plotted. The calculated RCS is plotted with and without the use of near-self impedance elements. Near exact agreement with the series solution is obtained by use of the near-self impedance elements.<>

Keywords

dielectric thin films; electric impedance; electromagnetic wave scattering; radar cross-sections; 2D moment method program; EM wave scattering; MM solution; TE-polarized incident wave; bistatic RCS; combined-field integral-equation; composite bodies; delta function testing; dielectric-coated conducting cylinder; near-self impedance element; point matching; pulse current expansion functions; radar cross section; scattered fields; series solution; thin features; Coatings; Conductors; Current; Dielectrics; Green´s function methods; Magnetic fields; Scattering; Surface impedance; Tellurium; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1991. AP-S. Digest

Conference_Location

London, Ontario, Canada

Print_ISBN

0-7803-0144-7

Type

conf

DOI

10.1109/APS.1991.175131

Filename

175131