Reconstruction of dielectric cylinders using FDTD and topology optimization technique

Young Seek Chung, Changyul Cheon, Song Yop Hahn

Research output: Contribution to journalConference articlepeer-review

18 Scopus citations


The Finite Difference Time Domain (FDTD) and topology optimization techniques are used for the two dimensional inverse scattering problems in TM case, which are to reconstruct shapes and material distributions of unknown dielectric cylinders. Using topology optimization and Born iterative method, the sensitivity information is evaluated, which is employed in a gradient-based optimization algorithm. The total variation (TV) scheme, one of the regularization methods, is used to enhance the quality of the reconstructed shape.

Original languageEnglish
Pages (from-to)956-959
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number4
StatePublished - 1 Jul 2000
Event12th Conference of the Computation of Electromagnetic Fields (COMPUMAG'99) - Sapporo, Jpn
Duration: 25 Oct 199928 Oct 1999


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