SCATTERING BEHAVIOUR OF FRACTAL BASED METALLO-DIELECTRIC STRUCTURES | Zendy

Anupam R Chandran | Zendy; Madanan Gopikrishna | Zendy; C. K. Aanandan | Zendy; P. Mohanan | Zendy; Kesavath Vasudevan | Zendy

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SCATTERING BEHAVIOUR OF FRACTAL BASED METALLO-DIELECTRIC STRUCTURES

Author(s) -

Anupam R Chandran,

Madanan Gopikrishna,

C. K. Aanandan,

P. Mohanan,

Kesavath Vasudevan

Publication year - 2007

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier06122001

Subject(s) - fractal , scattering , dielectric , materials science , condensed matter physics , statistical physics , optics , mathematics , physics , mathematical analysis , optoelectronics

The scattering behaviour of fractal based metallo- dielectric structures loaded over metallic targets of different shapes such as flat plate,cylinder and dihedral corner reflector are investigated for both TE and TM polarizations of the incident wave. Out of the various fractal structures studied,square Sierpinski carpet structure is found to give backscattering reduction for an appreciable range of frequencies. The frequency of minimum backscattering depends on the geometry of the structure as well as on the thickness of the substrate. This structure when loaded over a dihedral corner reflector is showing an enhancement in RCS for corner angles other than 90◦.

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