Design of perfectly conducting objects that are invisible to an incident plane wave

2023/10/09 by Helsing, Johan, Jiang, Shidong, Karlsson, Anders · 1 citation
#31A10 #65N38 #78A50 #78M15 #Computational Physics (physics.comp-ph) #FOS: Physical sciences

paper · doi:10.48550/arxiv.2310.06132

Abstract

This work concerns the design of perfectly conducting objects that are invisible to an incident transverse magnetic plane wave. The object in question is a finite planar waveguide with a finite periodic array of barriers. By optimizing this array, the amplitude of the scattered field is reduced to less than 10^-9 times the amplitude of the incident plane wave everywhere outside the waveguide. To accurately evaluate such minute amplitudes, we employ a recently developed boundary integral equation technique, adapted for objects whose boundaries have endpoints, corners, and branch points.

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• The uniqueness of inverse scattering problems, reciprocity principles, and nonradiating sources related to low-signature structures

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