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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 7, Iss. 9 — Sep. 1, 1990
  • pp: 1712–1718

Analysis of diffraction from doubly periodic arrays of perfectly conducting bodies by using a patch-current model

Amir Boag, Yehuda Leviatan, and Alona Boag  »View Author Affiliations


JOSA A, Vol. 7, Issue 9, pp. 1712-1718 (1990)
http://dx.doi.org/10.1364/JOSAA.7.001712


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Abstract

A novel solution is presented for the problem of three-dimensional electromagnetic scattering of a plane wave from a doubly periodic infinite array of perfectly conducting bodies. A set of fictitious spatially periodic and properly modulated patches of magnetic current is used to simulate the scattered field. These patch currents are of dual polarization and have complex amplitudes. The electromagnetic field radiated by each of the periodic patch currents is expressed as a double series of Floquet modes. The complex amplitudes of the fictitious patch currents are adjusted to render the tangential electric field zero at a selected set of points on the surface of any of the scatterers. The procedure is simple to implement and is applicable to arrays composed of smooth but otherwise arbitrary perfectly conducting scatterers. Results are given and compared with an analytic approximation.

© 1990 Optical Society of America

History
Original Manuscript: November 29, 1989
Manuscript Accepted: May 10, 1990
Published: September 1, 1990

Citation
Amir Boag, Yehuda Leviatan, and Alona Boag, "Analysis of diffraction from doubly periodic arrays of perfectly conducting bodies by using a patch-current model," J. Opt. Soc. Am. A 7, 1712-1718 (1990)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-7-9-1712

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