Abstract
As vector wavefunctions are available to represent incident and scattered fields in an isotropic dielectric-magnetic medium endowed with magnetoelectric gyrotropy, a transition matrix can be conceptualized to relate the scattered field coefficients to the incident field coefficients for scattering by an arbitrary scatterer composed of a linear medium. The elements of the transition matrix must satisfy certain conditions for zero backscattering. For a scatterer composed of a uniaxial dielectric-magnetic medium endowed with magnetoelectric gyrotropy, the extended boundary condition method (EBCM) can be formulated to determine the transition matrix. The numerical results obtained thereby lead to the formulation of a sufficient set of three zero-backscattering conditions: (i) the scatterer is a body of revolution with the incident plane wave propagating along the axis of revolution; (ii) the impedances of both mediums are identical; and (iii) the magnetoelectric-gyrotropy vectors of both mediums are aligned along the axis of revolution, whether or not both magnetoelectric-gyrotropy vectors are co-parallel.
Original language | English |
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Article number | 8839694 |
Pages (from-to) | 1023-1030 |
Number of pages | 8 |
Journal | IEEE Transactions on Antennas and Propagation |
Volume | 68 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 2020 |
Externally published | Yes |
Keywords
- Dielectric anisotropy
- electromagnetic scattering
- magnetic anisotropy
- magnetoelectric gyrotropy
ASJC Scopus subject areas
- Electrical and Electronic Engineering