Magnetic response of a hollow ellipsoid

Author

Mahmoud, Samir F. ; Wai, James R.

Author_Institution

Dept. of Electr. & Comput. Eng., Kuwait Univ., Safat, Kuwait

Volume

41

Issue

2

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

7

Lastpage

12

Abstract

The response of a ferrous ellipsoidal target in the presence of an applied magnetic field is studied. The ellipsoid is allowed to have two layers of contrasting magnetic permeability, and the frequency is assumed low enough to neglect any eddy currents. Because of its versatile geometry, the ellipsoid can represent several common shapes, such as discs, pancakes, cigars, and vertical or horizontal plates. Several special cases are considered in detail, including a hollow ellipsoid made of a thin, highly permeable shell. It is shown that the cross-polar component of the scattered field bears information about the ellipsoid´s location

Keywords

electromagnetic wave scattering; inhomogeneous media; magnetic fields; cigars; cross-polar component; discs; ellipsoid location; ferrous ellipsoidal target; geometry; hollow ellipsoid; horizontal plates; magnetic permeability; magnetic response; pancakes; scattered field; thin highly permeable shell; vertical plates; Eddy currents; Electromagnetic scattering; Ellipsoids; Geometry; Magnetic fields; Nonhomogeneous media; Permeability; Polarimetry; Position measurement; Rayleigh scattering;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/74.769686

Filename

769686