Electromagnetic scattering from conducting bodies of revolution coated with thin magnetic materials

Author

Kishk, Ahmed A. ; Gordon, Richard K.

Author_Institution

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

Volume

30

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

3152

Lastpage

3155

Abstract

Coating of the conducting objects with thin layers of magnetic materials is used to reduce, significantly, the back scattering from axi-symmetric objects. The concept of the impedance boundary condition (IBC) is used to solve the problem. The present formulation predicts an accurate value of surface impedance from the equivalent volume magnetic current of the magnetic material layer. The IBC concept is used to predict the coating material permeability and thickness in order to reduce the backscattering radar cross section (RCS). The numerical solution is verified by comparison with numerical solutions based on the exact boundary conditions

Keywords

backscatter; electromagnetic wave scattering; radar cross-sections; radiowave propagation; axi-symmetric objects; back scattering; coating material permeability; conducting bodies of revolution; electromagnetic scattering; equivalent volume magnetic current; exact boundary conditions; impedance boundary condition; magnetic material layer; numerical solutions; radar cross section; surface impedance; thin magnetic materials; Backscatter; Boundary conditions; Coatings; Conductors; Electromagnetic scattering; Magnetic materials; Permeability; Radar cross section; Radar scattering; Surface impedance;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312606

Filename

312606