Multiple Scattering of Electromagnetic Waves by an Array of Parallel Gyrotropic Rods

TL;DR

This paper investigates how an array of parallel gyrotropic rods scatters electromagnetic waves, revealing unique resonant behaviors and self-similar field patterns that differ from non-gyrotropic arrays, with potential practical applications.

Contribution

It demonstrates that gyrotropic properties induce unusual scattering phenomena and self-similar field distributions, advancing understanding of electromagnetic interactions with gyrotropic structures.

Findings

Giant enhancement of scattered fields at resonant frequencies

Self-similar chessboard pattern in the total field distribution

Scattering properties are fundamentally linked to gyrotropic resonance

Abstract

We study multiple scattering of electromagnetic waves by an array of parallel gyrotropic circular rods and show that such an array can exhibit fairly unusual scattering properties and provide, under certain conditions, a giant enhancement of the scattered field. Among the scattering patterns of such an array at its resonant frequencies, the most amazing is the distribution of the total field in the form of a perfect self-similar structure of chessboard type. The scattering characteristics of the array are found to be essentially determined by the resonant properties of its gyrotropic elements and cannot be realized for arrays of nongyrotropic rods. It is expected that the results obtained can lead to a wide variety of practical applications.