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Inchaussandague, M.E.; Gigli, M.L.; Depine, R.A. "Reflection characteristics of a PML with a shallow corrugation" (2003) IEEE Transactions on Microwave Theory and Techniques. 51(6):1691-1695
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Abstract:

The constitutive characteristics of anisotropic materials can be exploited to construct absorbers that provide reflectionless interfaces for waves at arbitrary angles of incidence. In this paper, we investigate how a weak corrugation affects the reflectivity of the anisotropic perfectly matched absorber developed by Sacks et al. for a flat interface. To do so, we develop a Rayleigh method to calculate the fields diffracted at the periodically corrugated boundary of an anisotropic absorber with constant constitutive tensors, which correspond to a planar (Cartesian) perfectly matched layer. We present numerical results in the nondiffractive regime (where only a specularly reflected wave can propagate) for sinusoidal corrugations with different groove height-to-period ratios. Our results show that the reflectivity of the anisotropic absorber near normal incidence remains very low (less than 0.4% for a 10% modulation), whereas it changes dramatically near grazing incidences.

Registro:

Documento: Artículo
Título:Reflection characteristics of a PML with a shallow corrugation
Autor:Inchaussandague, M.E.; Gigli, M.L.; Depine, R.A.
Filiación:Departamento de Fisica, Facultad Ciencias Exactas Naturales, Universitaria de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina
CNICT, Rivadavia 1917, Buenos Aires, Argentina
Palabras clave:Absorber; Anisotropy; Perfectly matched layer (PML); Reflectivity; Scattering; Boundary conditions; Electromagnetic fields; Electromagnetic wave polarization; Electromagnetic wave scattering; Linear equations; Maxwell equations; Absorber; Perfectly matched layer; Rayleigh method; Electromagnetic wave reflection
Año:2003
Volumen:51
Número:6
Página de inicio:1691
Página de fin:1695
DOI: http://dx.doi.org/10.1109/TMTT.2003.812566
Título revista:IEEE Transactions on Microwave Theory and Techniques
Título revista abreviado:IEEE Trans. Microwave Theory Tech.
ISSN:00189480
CODEN:IETMA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00189480_v51_n6_p1691_Inchaussandague

Referencias:

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  • Sacks, Z.S., Kingsland, D.M., Lee, R., Lee, J.F., A perfectly matched anisotropic absorber for use as an absorbing boundary condition (1995) IEEE Trans. Antennas Propagat, 43, pp. 1460-1463. , Dec
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Citas:

---------- APA ----------
Inchaussandague, M.E., Gigli, M.L. & Depine, R.A. (2003) . Reflection characteristics of a PML with a shallow corrugation. IEEE Transactions on Microwave Theory and Techniques, 51(6), 1691-1695.
http://dx.doi.org/10.1109/TMTT.2003.812566
---------- CHICAGO ----------
Inchaussandague, M.E., Gigli, M.L., Depine, R.A. "Reflection characteristics of a PML with a shallow corrugation" . IEEE Transactions on Microwave Theory and Techniques 51, no. 6 (2003) : 1691-1695.
http://dx.doi.org/10.1109/TMTT.2003.812566
---------- MLA ----------
Inchaussandague, M.E., Gigli, M.L., Depine, R.A. "Reflection characteristics of a PML with a shallow corrugation" . IEEE Transactions on Microwave Theory and Techniques, vol. 51, no. 6, 2003, pp. 1691-1695.
http://dx.doi.org/10.1109/TMTT.2003.812566
---------- VANCOUVER ----------
Inchaussandague, M.E., Gigli, M.L., Depine, R.A. Reflection characteristics of a PML with a shallow corrugation. IEEE Trans. Microwave Theory Tech. 2003;51(6):1691-1695.
http://dx.doi.org/10.1109/TMTT.2003.812566