Summary
International Symposium on Antennas and Propagation
2014
Session Number:WE3B
Session:
Number:WE3B_05
Iterative Determination of Complex Permittivity Profile of a Dielectric Cylindrical Object
Mitsuru Tanaka, Kaoru Hiramatsu,
pp.-
Publication Date:2014/12/2
Online ISSN:2188-5079
Summary:
An iterative reconstruction method for microwave imaging of a lossy dielectric cylinder from measurements of multi-frequency scattering data is presented. The multigrid optimization method is used to minimize a cost functional defined by the norm of a difference between the scattered electric fields measured and calculated. Numerical results for two dielectric circular cylinders located in free space demonstrate that the proposed method is effective in determining the complex permittivity profile of the scattering object even in the presence of a measurement error in the scattering data.