A new approach to the 2D-TE inverse electromagnetic medium scattering problem

Author

Rieger, W. ; Haas, M. ; Huber, C. ; Lehner, G. ; Rucker, W.M.

Author_Institution

Inst. fur Theor. der Elektrotech., Stuttgart Univ., Germany

Volume

2

fYear

1998

fDate

21-26 June 1998

Firstpage

706

Abstract

A method for reconstructing the material properties of inhomogeneous lossy dielectric cylindrical objects is presented. The material properties are reconstructed using scattering data from time-harmonic electromagnetic plane waves with the electric field vector perpendicular to the cylindrical object (TE-polarization). The inverse scattering problem formulated as a nonlinear optimization problem is numerically solved using a variable metric method. This method involves exact first-order gradients. Numerical examples illustrate the efficiency of the algorithm.

Keywords

electric fields; electrical conductivity; electromagnetic wave polarisation; electromagnetic wave scattering; gradient methods; harmonic analysis; inhomogeneous media; inverse problems; optimisation; permittivity; 2D-TE inverse EM medium scattering; TE-polarization; algorithm efficiency; conductivity profile; cylindrical object; electric field vector; exact first-order gradients; inhomogeneous lossy dielectric cylindrical objects; inverse scattering problem; material properties reconstruction; nonlinear optimization; permittivity profile; scattering data; time-harmonic electromagnetic plane waves; variable metric method; Dielectric losses; Electromagnetic fields; Electromagnetic scattering; Inverse problems; Material properties; Nonuniform electric fields; Optimization methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1998. IEEE

Conference_Location

Atlanta, GA, USA

Print_ISBN

0-7803-4478-2

Type

conf

DOI

10.1109/APS.1998.702035

Filename

702035