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2009-01-12
Electromagnetic Transmission through Fractal Apertures in Infinite Conducting Screen
By
Progress In Electromagnetics Research B, Vol. 12, 105-138, 2009
Abstract
Fractals contain an infinite number of scaled copies of a starting geometry. Due to this fundamental property, they offer multiband characteristics and can be used for miniaturization of antenna structures. In this paper, electromagnetic transmission through fractal shaped apertures in an infinite conducting screen has been investigated for a number of fractal geometries like Sierpinski gasket, Sierpinski carpet, Koch curve, Hilbert Curve and Minkowski fractal. Equivalence principle and image theory are applied to obtain an operator equation in terms of equivalent surface magnetic current over the aperture surface. The operator equation is then solved using method of moments (MoM) with the aperture surface modeled using triangular patches. Numerical results are presented in terms of transmission coefficient and transmission cross-section for both parallel and perpendicular polarizations of incident plane wave which show the existence of multiple transmission bands.
Citation
Basudeb Ghosh, Sachendra N. Sinha, and Machavaram Kartikeyan, "Electromagnetic Transmission through Fractal Apertures in Infinite Conducting Screen," Progress In Electromagnetics Research B, Vol. 12, 105-138, 2009.
doi:10.2528/PIERB08121005
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