Title :
A novel approach to the 2D-TM inverse electromagnetic medium scattering problem
Author :
Rieger, Wolfgang ; Haas, Martin ; Huber, Christian ; Lehner, Gunther ; Rucker, Wolfgang M.
Author_Institution :
Inst. fur Theor. der Elektrotech., Stuttgart Univ., Germany
fDate :
5/1/1999 12:00:00 AM
Abstract :
The 2D inverse electromagnetic scattering problem of reconstructing the material properties of inhomogeneous lossy dielectric cylindrical objects is considered. The material properties are reconstructed using scattering data from time-harmonic TM-polarized electromagnetic plane waves. A novel method which ensures physically meaningful material properties is proposed to numerically solve this nonlinear optimization problem. Numerical examples illustrate the efficiency of the algorithm
Keywords :
absorbing media; dielectric bodies; electromagnetic wave scattering; inverse problems; optimisation; 2D inverse electromagnetic scattering problem; 2D-TM inverse electromagnetic medium scattering; inhomogeneous lossy dielectric cylindrical objects; material properties; material properties reconstruction; nonlinear optimization; physically meaningful material properties; scattering data; time-harmonic TM-polarized electromagnetic plane waves; Conductivity; Dielectric losses; Dielectric materials; Electromagnetic scattering; Finite element methods; Integral equations; Inverse problems; Material properties; Optimization methods; Permittivity;
Journal_Title :
Magnetics, IEEE Transactions on
