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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. 9, Iss. 2 — Feb. 1, 1992
  • pp: 302–311

Boundary-value solution to electromagnetic scattering by a rectangular groove in a ground plane

Yon-Lin Kok  »View Author Affiliations


JOSA A, Vol. 9, Issue 2, pp. 302-311 (1992)
http://dx.doi.org/10.1364/JOSAA.9.000302


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Abstract

The diffraction of a plane electromagnetic wave by a rectangular groove corrugated in a perfectly conducting ground plane is rigorously formulated in terms of a Fourier-type integral for two orthogonal polarizations. I successfully expand the angular spectrum of the diffracted field in a series of Bessel functions. Furthermore, the Watson transform is adopted to compute the far-zone diffracted field. Results indicate that the groove width is inversely related to the beamwidth, while the groove depth is responsible for the power distribution among the mainlobe and the sidelobes. The solution remains computationally stable for a wide range of the parameters.

© 1992 Optical Society of America

History
Original Manuscript: May 14, 1991
Manuscript Accepted: August 27, 1991
Published: February 1, 1992

Citation
Yon-Lin Kok, "Boundary-value solution to electromagnetic scattering by a rectangular groove in a ground plane," J. Opt. Soc. Am. A 9, 302-311 (1992)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-9-2-302

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